/Investor DB

Manta Ray Ventures

Venture capital

London · Pre-Seed–Growth · 8 people tracked

Also known as Manta Ray

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Investment thesis

Manta Ray invests early in mission-driven founders building generational companies that tackle the world's biggest challenges, backing them with deep conviction and a long-term view. The firm positions itself as a provider of flexible, patient capital, leveraging its time, resources and networks to support portfolio companies. With Polish roots and global ambitions, it supports initiatives that foster and accelerate entrepreneurship in Poland and Central and Eastern Europe, acting as a bridge to key startup ecosystems across Europe and the US and helping entrepreneurs gain the skills and resources needed to build global businesses.

Source: firm website, verified Sep 27, 2026.

Stage
Pre-Seed–Growth
HQ
London, GB
Instruments
Equity
Founded
2017
Last 12 months
1 investment
Tracked investments
181
Unicorns
15
IPOs
11
Acquisitions
15

Team · 8 people

from the firm's website & public directories
Sebastian Kulczyk· Founderin

Founder of Manta Ray who previously served as a Principal at DN Capital, leading consumer internet investments across Europe and the US with exits including Purplebricks and Eve Sleep. He earlier worked as a Manager at Monitor Group and holds an MA in Chinese from Oxford University.

Hamish Garnett· Associatein
Leonard Picardo· Advisorin𝕏
Maria Bagniewska· Advisor
Christopher Sisserian· Head of Platformin𝕏
Julia Schrameier· Associatein𝕏

Julia Schrameier is a Principal at Manta Ray Ventures, where she works on the investment team and leads internal research projects that inform the firm's thematic strategy, with a focus on areas including health and life sciences and environmental technologies. She holds a B.Sc. in Business Administration from LMU Munich and an M.Sc. in Management from Imperial College Business School. Schrameier completed Berenberg's International Graduate Programme in investment banking, worked as a Thematic Equity Research Analyst for over two years, and has passed the CFA Level III exam.

Lawrence Barclay· Managing Partnerin𝕏
Leah von Siemens· Partnerin𝕏

Leah von Siemens is a partner at Manta Ray, a venture capital firm focused on early-stage, impact-oriented deep tech companies. She has more than 15 years of experience across venture capital and product marketing, and works within the VC and single family office ecosystem. She is available for mentoring and speaking engagements.

What they invest in

from 119 of 181 portfolio companies

AI & Machine Learning ×41Biotech ×24Enterprise Software ×21Consumer ×20SaaS ×20Healthtech ×19Deep Tech ×15Digital Health ×15

HQs:United States×61United Kingdom×12Poland×5Germany×4France×2Spain×1

Who they back

founder profiles across 96 portfolio companies
31%
solo founders
30 of 96 mapped founding teams
58%
repeat founders
of 106 founders with career history
~2 yrs
old at investment
median across 16 dated deals

Founding team size:solo founder×302 founders×313 founders×204+ founders×15

Where their founders studiedfrom 97 founders with education data

Stanford University ×9Massachusetts Institute of Technology ×5University of Oxford ×5UCLA ×4University of Cambridge ×4University of Southern California ×4Cornell ×3Harvard Business School ×3

What their founders studiedfrom 97 founders with field-of-study data

Engineering ×28Computer Science ×21Business & Management ×13Life Sciences ×13Economics ×9Mathematics & Statistics ×8Finance & Accounting ×5Design & Architecture ×4

Where their founders worked beforefrom 106 founders with career history

Stanford University ×6Goldman Sachs ×4McKinsey & Company ×4Carnegie Mellon University ×3Founders ×3Google ×3Slush ×3Affymetrix ×2

Accelerator rootsportfolio companies that came through a program

Y Combinator ×8Plug and Play Ventures ×2

28 founders hold a PhD · 9 hold an MBA (of 103 with degree data)

Investments · 181 tracked

founders shown can be your intro path

By year:2026 · 12025 · 32024 · 22023 · 32022 · 62021 · 62020 · 12019 · 12018 · 42017 · 12014 · 129 dated

A Place for Momaplaceformom.comin𝕏NASDAQ: GDRXacquired by Exit Blackstone · Jul 2025 · $2.6B

A Place for Mom is a senior care referral service that helps families find and compare senior living and care options, including assisted living, memory care, independent living, home care, nursing homes, and senior apartments.

ConsumerDigital HealthHealthtechMarketplacesWellness & FitnessVernon Hills, US

Douglas Hirsch(Director)Trevor Bezdek(Co-Chairman & Director)Jonathan Stevens(Executive Officer)Thomas Richards(Executive Officer, Director)Christine Leahy(Executive Officer)Dennis Berger(Executive Officer)

Co-investorsBain Capital Double Impact Fund LPBain Capital Life SciencesBain Capital Tech OpportunitiesBattery VenturesBessemer Venture PartnersBlue Sea Capital+38 more

Courseracoursera.orgin𝕏NYSE: COUR

Coursera is an online learning platform offering courses, certificates, and career programs from universities and companies such as Google.

EdTechEnterprise SoftwareFuture of WorkMarketplacesSaaSMountain View, US

Daphne Koller(Founder)inAndrew Ng(Co-founder)inRichard Levin(Chief Executive Officer)Andrew Y. Ng(Founder)in

BoardDan Avida(Director)Scott Sandell(Director)in

Co-investors1802 VenturesAlign VenturesAllied Venture PartnersAlpha PartnersBVP InvestorsFelicis Ventures+16 more

Duolingoduolingo.comin𝕏NASDAQ: DUOL

Duolingo offers app-based language learning through short, game-like lessons that teach reading, writing, listening, and speaking, using AI and language science to personalize the experience.

AI & Machine LearningConsumerEdTechPittsburgh, US

Severin Hacker(Founder)inLuis von Ahn(Founder)inMatt Skaruppa(Chief Financial Officer)inSeverin Guey(Founder)in

BoardBrad Burnham(Director)inAndrew Moore(Director)

Co-investorsCapitalGDrive CapitalFelicis VenturesFirebolt Ventures Management Company, LlcGeneral AtlanticK2 Global+10 more

Eliem TherapeuticsNASDAQ: CLYM

Eliem Therapeutics is a clinical-stage biotechnology company developing monoclonal antibodies targeting immune-mediated diseases, with budoprutug, an anti-CD19 antibody designed to deplete B cells in conditions including primary membranous nephropathy, immune thrombocytopenia, and systemic lupus erythematosus, and CLYM116, an anti-APRIL antibody for IgA nephropathy and related B-cell mediated diseases.

BiotechWilmington, US

Valerie Morisset(Executive Officer)inErin Lavelle(Executive Officer)inRobert Azelby(Executive Officer, Director)James Bucher(Executive Officer)Leone Patterson(Director)

BoardAdam Rosenberg(Director)

Co-investorsAccess BiotechnologyACORN BIOVENTURESIntermediate Capital GroupLifeArc VenturesRA Capital

Guardant Healthguardanthealth.comin𝕏NASDAQ: GH

Guardant Health develops blood-based testing (liquid biopsy) for cancer detection and monitoring across all stages of the disease.

BiotechDigital HealthHealthtechMedical DevicesRedwood City, US

AmirAli Talasaz(Founder)inHelmy Eltoukhy(Founder)inMichael Wiley(Executive Officer)inMichael Bell(Chief Financial Officer)Darya Chudova(Chief Technology Officer)inCraig Eagle(Chief Medical Officer)in

Co-investors8VCAUTHENTIC VENTURESCLI VenturesCota CapitalFelicis VenturesKhosla Ventures+11 more

Instacartinstacart.comin𝕏NASDAQ: CART

Instacart operates a marketplace connecting grocery retailers with customers who order food and household items for same-day delivery or in-store pickup, serving millions of households across North America through partnerships with over 350 retailers.

ConsumerE-commerceFoodTechSan Francisco, US

Apoorva Mehta(Chairman \u0026 Founding CEO)inBrandon Leonardo(Founder)inMax Mullen(Founder)inChris Rogers(Chief Executive Officer)inEmily Reuter(Chief Financial Officer)inHetong Li(Senior Software Engineer)

Co-investorsA*Andreessen HorowitzAvenue Growth PartnersBACKGROUND CAPITALBling CapitalBright Pixel Capital+54 more

LiqTech Internationalliqtech.cominNASDAQ: LIQTApr 2021

LiqTech develops advanced ceramic membrane filtration technology used to purify liquids and gases for industrial applications.

Advanced ManufacturingCleantechNew MaterialsBallerup

Sune Mathiesen(Executive Officer, Director)inClaus Toftegaard(Executive Officer)inFei Chen(Director, Chief Executive Officer (Principal Executive Officer))inPhillip Massie Price(Interim Chief Financial Officer (Principal Financial and Accounting Officer))inDavid Kowalczyk(Chief Financial and Operating Officer)in

BoardPeyton Boswell(Director)

Quantinuumquantinuum.comin𝕏NASDAQ: QNTDec 2023

Quantinuum develops quantum computers and quantum software solutions for applications in drug discovery, healthcare, materials science, cybersecurity, and energy.

Deep TechEnterprise SoftwareQuantum ComputingBroomfield, US

Ilyas Khan(Founder)inRajeeb Hazra(Founder)inAvinash Palaniswamy(Chief Commercial Officer)Susan Schwamberger(Chief Human Resources Officer and SVP Operations)inJennifer Strabley(VP and General Manager, Compute Products)inWaseem Shiraz(Senior VP Strategic Initiatives & Chief of Staff)in

Co-investorsAccess Ventures (New York)Adequita CapitalEdenBaseHoneywell VenturesICON Quantum VenturesKhosla Ventures+14 more

Recursion Pharmaceuticalsrecursion.comin𝕏NASDAQ: RXRX

Recursion applies computational and data-driven approaches to biological science, aiming to accelerate drug discovery and develop new treatments.

AI & Machine LearningBiotechData & InfrastructureDeep TechMedical DevicesSalt Lake City, US

Chris Gibson(Co-founder and Chairman of the Board)inBlake C. Borgeson(Executive Officer, Director)inDean Y. Yi(Executive Officer, Director)Najat Khan(Chief Executive Officer)inNajat Khan, Ph.D.(CEO and President)inBlake Borgeson(Founder)

Co-investorsDCVC (Data Collective)Lux CapitalBaillie GiffordAdvantage Capital PartnersAir Street CapitalAmplify Partners+22 more

Snapsnapchat.cominNYSE: SNAPApr 2014

Snapchat is a mobile app for communicating with friends and family through photos and videos, featuring augmented-reality Lenses, creative sharing tools, and a personalized map for discovering places and content.

ConsumerCreator EconomyMedia & EntertainmentSocialSanta Monica, US

Evan Spiegel(Founder)inBobby Murphy(Founder)Reggie Brown(Founder)Tim Sehn(Executive Officer)Emily White(Executive Officer)inDerek Andersen(Chief Financial Officer)in

Co-investorsA-Rod CorpAccess Technology VenturesAlibaba GroupCapitalGCoatue ManagementEntrée Capital+40 more

Symboticsymbotic.comin𝕏NASDAQ: SYM

Symbotic provides warehouse and supply chain automation, offering robotics-based systems for order fulfillment and distribution operations.

AI & Machine LearningLogistics & Supply ChainRoboticsWilmington, US

Rick Cohen(Founder)inIzzy Martins(Chief Financial Officer)inBrendan Blennerhassett(Chief Product Innovation Officer)inBill Boyd(Chief Strategy Officer)inCorey Dufresne(Chief Legal Officer)inMichael Dunn(Chief Customer Officer)

Co-investorsSoftBank Vision FundBBG Ventures

Infinitopesinfinitopes.comin✓ verified

Infinitopes develops immunotherapy treatments for cancer, focusing on immune-oncology and antigen discovery solutions aimed at improving patient outcomes and affordability in cancer care.

AI & Machine LearningBiotechHealthtechMedical DevicesOxford, GB

Jonathan Kwok(Co-Founder, President & Chief Medical Officer)inLian Ni Lee(VP Preclinical & Co-Founder)in

Co-investorsAmplify PartnersOctopus VenturesEMV CapitalKindred CapitalMartlet CapitalNadav Rosenberg+1 more

AcquicentinPre-Seed · Mar 2022 · $760K

Turnkey solutions for blockchain token issuance and trading for digital and real-world assets.

Walnut, US

ANTHONY CITRANO(Executive Officer, Director, Promoter)in

Co-investorsEmerging VenturesMoonshots Capital

AI VIVOaivivo.co

AIVIVO develops drug discovery solutions at the organism level, focusing on accelerating pharmaceutical development processes.

AI & Machine LearningBiotech

Peyman Gifani(Founder)in

Co-investorsDCVC (Data Collective)EMV CapitalMartlet Capital

Alienalien.org𝕏

Alien provides a decentralized identity and blockchain platform that establishes proof of humanity and enables verification of AI agents.

Crypto & Web3Cybersecurity

Co-investorsInitialized CapitalJuniper Ventures Management, LlcLvna CapitalTranspose Platform Management

Aliroaliroquantum.comin𝕏

Aliro provides a full-stack software platform for quantum networking, including simulation, orchestration, and operating system solutions that enable enterprises and government agencies to plan and deploy quantum networks for applications like QPU interconnection and quantum-secured communications.

CybersecurityDeep TechEnterprise SoftwareQuantum ComputingBoston, US

Michael Cubeddu(Co-Founder, CTO, and Board Member)inJim Ricotta(CEO & Chairman)inPrineha Narang(Founder)

Co-investorsArgon VenturesBantam GroupCisco InvestmentsCrosslink CapitalFlybridge Capital PartnersGutbrain Ventures+6 more

Andurilanduril.comin

Anduril builds autonomous systems and software for defense and military applications, including attack aviation, unmanned aircraft, and underwater vehicles, unified by an autonomy platform.

AI & Machine LearningDefense TechHardwareRobotics

Palmer Luckey(Founder)inBrian Schimpf(Founder)inTrae Stephens(Founder)inJoe Chen(Founder)Joseph Chen(Founder)inMatt Grimm(Founder)

Co-investors137 Ventures1435 Capital1Flourish Capital8VCAliya Capital PartnersAltra Venture+109 more

Aqtualaqtual.cominSeries B · Jul 2025 · $31M

Aqtual is a precision medicine company led by experienced healthcare professionals, entrepreneurs, and technical experts.

AI & Machine LearningHealthtechMedical DevicesHayward, US

Diana Abdueva(Founder)inRichard Rava(Founder)

Co-investorsBold Capital PartnersBOLD LongevityGenoa Ventures

Archdeskarchdesk.comin𝕏

Archdesk builds a platform that enables construction companies to manage their work end-to-end, from project acquisition to closeout.

Construction TechEnterprise SoftwareSaaS

Michal Mojzesz(Founder)in

Co-investorsBeringeaCredo Ventures

Asseco Polandasseco.pl

Asseco Poland is a publicly traded Polish multinational IT company that develops enterprise software for banking, finance, public administration, and other sectors.

Rzeszów, PL

Adam Góral(Założyciel i Prezes Asseco Poland)in

Assemblyassembly.comin𝕏

Assembly provides a branded client portal for professional service firms to manage clients, contracts, and billing.

AI & Machine LearningE-commerceEnterprise SoftwareFuture of WorkMarketing TechSaaSNew York City, US

Marlon Misra(CEO)inNeil Raina(Founder)inJonathan Fields(Founder)Jonathan Friedman(Founder)inJosh Purvis(Founder)Muthu Rajendran(Founder)

Co-investorsAlumni VenturesFusionGoAhead VenturesUnion Square Ventures (USV)Y CombinatorAccel+12 more

Assembly OSMassemblyosm.comApr 2022

Assembly OSM develops modular construction technology and methods to make urban development scalable and sustainable, enabling rapid high-rise building assembly.

CleantechConstruction TechPropTechNew York, US

Bill Sharples(Founder)Chris Sharples(Founder)Andrew Staniforth(CEO)Jason Blenker(CEO)in

BoardRobert Stavis(Director)inKieran Mara(Director)

Co-investorsAndreessen HorowitzAtento CapitalFJ LabsGaingelsYes VCBessemer Venture Partners+4 more

Astranisastranis.comin𝕏

Astranis manufactures small, high-powered geosynchronous satellites equipped with advanced digital processing technology for global telecommunications and connectivity services.

Advanced ManufacturingDeep TechHardwareSpace TechSan Francisco, US

John Gedmark(CEO)inRyan McLinko(CTO)inMike Mancini(Executive Officer)Siamak Ebadi(Lead RF Engineer)inHall Chen(RF Payload Design)inShraddha Pandya(Talent Acquisition)

Co-investorsAndreessen HorowitzATEL VenturesBlack FlagBoxGroupCantos VenturesCherubic Ventures+87 more

Axiom Spaceaxiomspace.comin𝕏

Axiom Space develops commercial space stations and provides access to low-Earth orbit microgravity environments for research, manufacturing, and innovation by governments, researchers, and organizations.

Defense TechEdTechHardwareSpace Tech

Dr. Kam Ghaffarian(Founder)inMichael Suffredini(Founder)inKam Ghaffarian(Founder)

Co-investors1802 Ventures2am VCAidenlair CapitalAlumni VenturesAurum Venture PartnersBascom Ventures+45 more

Beaconbeacon.com

Beacon provides a platform that delivers real-time visibility and standardized data across supply chains through a unified dashboard for shippers, manufacturers, and retailers.

AI & Machine LearningData & InfrastructureEnterprise SoftwareLogistics & Supply ChainSaaSLondon, GB

Dan Fletcher(Cofounder)Aerica Banks(Cofounder)Dmitri Izmailov(Founder)Fraser Robinson(Founder)

Co-investorsUpper908VCRed Sea Ventures

Beaconbeaconapp.ca

Aditya Mhatre(Founder)Divya Gupta(Founder)Nilam Ganenthiran(Founder)Stuart Szabo(Founder)

Co-investorsAdvent Life SciencesAlphaDriveGeneral CatalystHARPER COURT VENTURESHuman CapitalIllinois Ventures

BeitTechbeit.techin

BEIT provides physics-based computational approaches for drug discovery, embedding scientists with expertise in physics, mathematics, and engineering into pharmaceutical research programs.

AI & Machine LearningBiotechDeep TechKraków, PL

Co-investorsElma VenturesKindred CapitalTensor Ventures

Believer Meatsbelievermeats.comin𝕏

Believer Meats grows meat from animal cells in controlled environments without slaughtering animals.

BiotechFoodTech

Gustavo Burger(Chief Executive Officer)in

Co-investorsS2G Investments

Benson Hill Inc.bensonhill.comin

Benson Hill develops soybean seed varieties using plant genetics and AI-driven plant science to produce more nutritious and energy-dense soy for agriculture and food markets.

AgTechAI & Machine LearningFoodTech

Matthew Crisp(Founder)

Co-investorsActivant CapitalBioGenerator VenturesGV (Google Ventures)iSelect FundLewis & Clark VenturesMercury Fund+4 more

Bettani Farmsbettani.comin

Bettani produces dairy-free cheese using a proprietary plant-based protein derived from regenerative crop seeds, offering products with comparable taste, texture, and protein content to conventional dairy cheese.

CleantechFoodTechImpact & Social Good

Co-investorsArtis VenturesS2G InvestmentsGratitude Railroad

Better Dairybetterdairy.comMar 2022

Better Dairy uses precision fermentation to produce bioactive milk proteins optimized for human development, targeting applications such as infant formulas that more closely mimic breastmilk and supplements for workout recovery.

BiotechClimate TechFoodTechLondon, GB

Jevan Nagarajah(Founder)inChris Reynolds(Founder)Christopher Reynolds(Founder)

Co-investorsBridford Investments (Bridford Group)Creative Destruction Lab (CDL)Entrepreneur FirstHappiness CapitalUpscaleVorwerk Ventures+4 more

BioNTechbiontech.comin𝕏

BioNTech is a biotechnology company developing immunotherapies that use the body's immune system, combining multiple therapeutic modalities and biological targets to treat cancer, infectious diseases, and other serious conditions.

BiotechHealthtechMainz, DE

Ozlem Tureci(Executive Officer)Ugur Sahin(Executive Officer)inSierk Poetting(Executive Officer)inSean Marett(Executive Officer)inRyan Richardson(Executive Officer)inUğur Şahin(Founder)in

Co-investorsHM Venture PartnersMIG Capital AGOnsight VenturesPfizer Venture InvestmentsSalviaAndreessen Horowitz

Bite Ninjabiteninja.comin𝕏Seed · Aug 2022 · $11Macquired by Voicify

Bite Ninja provides remote order-taking technology that enables restaurant staff to process drive-thru and takeout orders from remote locations.

AI & Machine LearningEnterprise SoftwareFuture of WorkLogistics & Supply ChainRetail TechSaaSMemphis, US

William Clem(Founder)inOrin Wilson(Founder)inWill Clem(Founder)Devang Kamdar(Vice President of Tech Operations)Cameron Starkey(Director of Human Resources)Brittany Kimble(Director of Finance)

Co-investorsY CombinatorTRAC (Third Round Analytics Capital)AgFunderForum VenturesiAccelerateImmeasurable+3 more

Blokblok.aiin𝕏acquired by Magenta Homes · Nov 2023

Blok is a digital real estate agency that helps homeowners sell properties with lower commission fees (averaging €6,000 savings) and provides an advanced valuation tool for property assessment.

B2B MarketplacesPropTechSaaSFinland, FI

Juha Jokela(Co-Founder & CTO)inOlli Gunst(Co-Founder & CMO)inRudi Skogman(Co-Founder & CEO)inSamu Hautala(Co-Founder (Lead Developer))in

Co-investorsBonnier CapitalLifeline VenturesBlank VenturesMaC Venture CapitalPICUS CAPITALProtagonist+1 more

Blokableblokable.com

Advanced ManufacturingClyde Hill, US

Aaron Holm(Executive Officer, Director, Promoter)

Co-investorsBuilding VenturesDay One SyndicateKnockout CapitalPrelude VenturesVU Venture PartnersCercano Management+4 more

Blue Nalubluenalu.comin

BlueNalu develops cell-cultivated seafood grown directly from fish cells in a controlled environment, aiming to supply seafood without harvesting it from the ocean.

BiotechClimate TechFoodTechSan Diego, US

Lauran Madden(Founder)inH. LOUIS COOPERHOUSE(Executive Officer, Director)Lou Cooperhouse(Founder)

BoardSTEVEN FINN(Director)inBABAR KHAN(Director)inDAVID TAICLET(Director)

Co-investors91 VenturesAgronomicsAlwyn CapitalAurum Venture PartnersBay Bridge Ventures ClimateBloom8+12 more

Bluu Biosciencebluu.bioin

BLUU develops marine cell-based ingredients derived from cultured fish cells for personal care, health, and food applications.

BiotechDeep TechFoodTech

Dr. Sebastian Rakers(Co-Founder & Chief Executive Officer)inSebastian Rakers(Founder)Simon Fabich(Founder)

Co-investorsLBBW Venture Capital GmbHLever VCNorrsken VCTrellis Road I Fund ABNorrsken Accelerator

Booksybooksy.netJan 2021

Booksy is a mobile marketplace that enables users to discover, book, and manage appointments with beauty and wellness service providers in their area.

MarketplacesSaaS

Stefan Batory(Founder)in

Co-investorsOpenOceanEnernIndustry VenturesKulczyk InvestmentsPiton Capital LLPSprints Capital+1 more

Booksybooksy.comJul 2018

Booksy is a free mobile app for discovering and booking appointments with beauty and wellness service providers such as barbers, hairdressers, massage therapists, and manicurists.

ConsumerMarketplacesChicago, US

Konrad Howard(Founder)Stefan Batory(Founder)Kristina Salen(Executive Officer)inRipsy Bandourian(Executive Officer)inEwelina Macewicz(Executive Officer)inSelim Dogguy(Executive Officer)in

Co-investorsAternusCoelius CapitalEndeavor CatalystInovia CapitalInovo VCKAYA+11 more

Brainlybrainly.com

Brainly provides 1:1 tutoring combining AI explanations with human expert intervention, targeting K-12 students and their parents seeking affordable academic support across all subjects.

AI & Machine LearningEdTech

Michał Borkowski(Founder)Tomasz Kraus(Founder)Łukasz Haluch(Founder)

Co-investorsPoint NineRuna CapitalGeneral CatalystKulczyk InvestmentsLearn CapitalNaspers+1 more

Bright Champsbrightchamps.comin𝕏

BrightCHAMPS is an education company that teaches children future-ready life skills through its learning programs.

ConsumerEdTech

Ravi Bhushan(Founder)in

Co-investorsGSV Ventures9Unicorns Accelerator FundPremji InvestXeed VenturesBEENEXT

Building Connectedbuildingconnected.comin𝕏

BuildingConnected is a construction bid management platform that connects general contractors, subcontractors, and project owners to streamline bidding workflows and prequalification processes across a network of over 1 million construction professionals.

B2B MarketplacesConstruction TechSaaSSan Francisco, US

Jesse Pedersen(Founder)Dustin DeVan(Founder)

BoardNakul Mandan(Director)inDan Kingsley(Director)Omar El-Ayat(Director)in

Co-investorsBee PartnersBrick Mortar VenturesCrosslink CapitalHomebrewLightspeed Venture PartnersMetaProp Ventures+5 more

Calacala.aiin

Cala provides verified, structured data from public sources including financial filings, market data, regulatory information, news, and business registries to AI agents and applications through an API.

AI & Machine LearningData & InfrastructureEnterprise SoftwareBarcelona, ES

Issey Masuda Mora(Founder)inElisenda Bou-Balust(Founder)in

Co-investorsKfundKibo VenturesAME Cloud Ventures

Calaeatcala.com

Cala operates five restaurants in Paris offering prepared meals for lunch, with delivery available across the city.

ConsumerFoodTechParis, FR

Co-investorsBackedBY Venture PartnersNewland SyndicateMana Ventures

Calypsocalypsoai.com𝕏acquired by F5

AI security company entering an agreement to be acquired by F5; Paladin led its Series A and follow-on financings.

AI & Machine LearningCybersecurityEnterprise Software

Neil Serebryany(Founder)

Co-investorsCyber Mentor FundDay One VenturesExpeditionsFrontline VenturesGaingelsHakluyt Capital+3 more

Cellaritycellarity.comin𝕏

Cellarity develops medicines using artificial intelligence and single-cell biology to address disease at the cellular level rather than targeting individual disease markers.

AI & Machine LearningBiotechDeep TechMedical Devices

Avak Kahvejian Nick Plugis(Founder)

Co-investorsAhren Innovation CapitalFlagship PioneeringBlackRock

Cellphirecellphire.comin𝕏

Cellphire Therapeutics develops platelet-based and freeze-dried cellular therapeutics for transfusion medicine, focused on controlling hemorrhage.

BiotechMedical DevicesRockville, US

Michael Gaffney(Executive Officer, Director)inDavid Hirsh(Director)Cristiane Wolfe(Executive Officer)Angela Howerton(Executive Officer)Rob Woods(Executive Officer)

BoardPamela Conley(Director)

Co-investorsCircadian Ventures

Cetos Watercetoswater.comin

Cetos Water develops advanced water treatment technology for desalination and brine management.

CleantechClimate TechDeep TechEnergy

Shannon Knee(Founder & CEO)in

Co-investorsCreative Destruction Lab (CDL)

Clarkclark.dein𝕏

CLARK is a digital insurance broker app that aggregates, compares, and manages insurance policies for consumers.

FintechInsurTechNew York, DE

Co-investorsAllianz XCaesar VenturescoparionDiagramGerman Media PoolIsomer Capital+7 more

Climax Foodsclimax.bioinOct 2025 · $7.5M

Climax (Bettani) develops dairy-free cheeses that match the taste, texture, melt and stretch of dairy cheese while providing 80–100% of the protein.

BiotechClimate TechFoodTech

Co-investorsArtis VenturesAt One VenturesUntapped VenturesValor Equity PartnersCanaccord Genuity GroupClimate Capital+6 more

Coinpaprikacoinpaprika.com

CoinPaprika aggregates real-time cryptocurrency data directly from exchanges and provides it through a web platform and API for investors, traders, and developers.

Crypto & Web3Data & Infrastructure

Coverbuildcover.com𝕏

Cover designs and builds modular homes using technological and material innovations to reduce construction waste and improve energy efficiency.

Climate TechConstruction TechPropTechGardena, Los Angeles, US

Alexis Xavier Rivas(Founder)in

Co-investorsEarl Grey CapitalFifty YearsGigafundGreat Oaks Venture CapitalPartners Resolute

Covercover.build𝕏

Cover builds custom residential spaces designed by architects, manufactured and installed in weeks rather than years.

Construction TechHardwarePropTech

Alexis Rivas(Founder)Anand Dhillon(Founder)inGordon Luk(Founder)Jemuel Joseph(Founder)Karn Saroya(Founder)inNatalie Gray(Founder)in

Co-investorsEarl Grey CapitalGeneral CatalystGigafundGreat Oaks Venture CapitalPhenomen VenturesSTRIVE+1 more

Cuemathcuemath.comin𝕏Series B · Dec 2019 · $5M

Cuemath is an online math tutoring platform offering 1-on-1 live classes with vetted tutors for children globally.

EdTechDelhi, IN

Manan Khurma(Founder)in

Co-investorsAlpha Wave GlobalCapitalGCapria VenturesLightrockPeak XV PartnersTrifecta Capital Advisors

Darktracedarktrace.comin𝕏Acquired

Darktrace / Forensic Acquisition & Investigation is a cloud-native forensics product that automates disk-level evidence capture, collection, and preservation across multi-cloud, on-premises, and SaaS environments.

AI & Machine LearningCloud ComputingCybersecurityEnterprise SoftwareSaaSCambridge, GB

Jill PopelkainDave Palmer(Founder)Emily Orton(Founder)Jack Stockdale(Founder)Nicole Eagan(Founder)Poppy Gustafsson(Founder)

Co-investors408 Ventures515 VenturesAlexander Square PartnersAmakorBalderton CapitalBright Pixel Capital+13 more

Deepcelldeepcell.comin

Deepcell uses artificial intelligence and high-resolution imaging to analyze cell morphology for biological research and discovery.

AI & Machine LearningBiotechDeep TechMedical DevicesSunnyvale, US

Mahdokht Masaeli(Executive Officer, Director, Promoter)Mahyar Salek(Executive Officer, Director, Promoter)inMaddison Masaeli(Founder)inEuan Ashley(Director, Promoter)

Co-investorsAndreessen HorowitzBow CapitalDCVC (Data Collective)Fifty YearsHorizons VenturesLifeX Ventures

Deepcelldeepcellbio.com

Euan Ashley M.D.(Founder)Maddison Masaeli(Founder)Mahyar Salek(Founder)

Co-investorsAntlerBow CapitalDCVC (Data Collective)

Desktop Metaldesktopmetal.comin

Desktop Metal develops additive manufacturing (3D printing) platforms and materials for production-volume manufacturing, targeting engineers, designers, manufacturers, and medical professionals.

Advanced ManufacturingDeep TechHardwareBurlington, US

Ric Fulop(Founder)inA. John Hart(Founder)inChristopher Schuh(Founder)Ely Sachs(Founder)Jonah Myerberg(Founder)Rick Chin(Founder)

Co-investorsBaukunstBMW i VenturesConductive VenturesConstruct CapitalDCVC (Data Collective)Founder Collective+14 more

Divergentdivergent3d.com

Kevin Czinger(Founder)in

Co-investorsAdvection Growth CapitalAlumni VenturesTrousdale Ventures

doctorlydoctorly.de

doctorly offers a cloud-based practice management system (PVS) for medical practices, supporting features like KV quarterly billing, eRezept and eAU, patient record management, and device integration via GDT.

Digital HealthHealthtechSaaSBerlin, DE

Sebastian L.(Founder)inAnna von Stackelberg(Founder)Nicklas Teicke(Founder)Samir El-Alami(Founder)Sebastian Lau(Founder)

Co-investorsHorizons VenturesPlug and Play VenturesSimon CapitalTarget GlobalSpeedinvest

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

KrnlAnimation StudioAsurionBark TechnologiesBelieverBetterHelpCartoon NetworkCasprClearSpaceCord Blood RegistryCybersecurity ServicesDesktop GeneticsDotdash MeredithEveryExplainability AIFlockForecastGlovoJiminyLemonade FinanceLoverMarketMedtech AcceleratorMindstrongMobile Games CompanyMoreyoMotif FoodWorksNeurocoreNewsroomNiceNice (Smart Home)OfficewiseOYO RoomsQuantum SecurityQuantumBlackRemotepadRespivantSecurity & TrustSeismicSolarmaxStethoscope AIStrangequestSweetener AlternativeTalentEdTangentTouchplanTriomeVerishopViatorVirgin Hyperloop

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Exits · 26

11 IPOs · 15 acquisitions · showing 23

A Place for MomNASDAQ: GDRXCourseraNYSE: COURDuolingoNASDAQ: DUOLEliem TherapeuticsNASDAQ: CLYMGuardant HealthNASDAQ: GHInstacartNASDAQ: CARTLiqTech InternationalNASDAQ: LIQTQuantinuumNASDAQ: QNTRecursion PharmaceuticalsNASDAQ: RXRXSnapNYSE: SNAPSymboticNASDAQ: SYMBetterHelpacq. by Teladoc HealthBite Ninjaacq. by VoicifyBlokacq. by Magenta HomesCalypsoacq. by F5Cord Blood Registryacq. by AMAG PharmaceuticalsDesktop Geneticsacq. by CelixirFrontier Car Groupacq. by OLXHyperloop Oneacq. by DP WorldJiminyacq. by SolutoMarketacq. by VerishopQuantumBlackacq. by McKinsey & CompanyViatoracq. by TripAdvisor

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Manta Ray Ventures made?
Manta Ray Ventures has 181 tracked investments, 26 of which have exited, including 4 dated in the last 24 months.
What stage does Manta Ray Ventures invest at?
Manta Ray Ventures invests at the Pre-Seed, Seed, Series A, Series B, Growth stages.
What sectors does Manta Ray Ventures focus on?
Manta Ray Ventures focuses on Advanced Manufacturing, AI & Machine Learning, Biotech, Climate Tech, Construction Tech, Cybersecurity, Deep Tech, Digital Health, EdTech, Fintech, FoodTech, Gaming, Healthtech, Marketplaces, Mobility & Transportation, PropTech, Robotics, SaaS, Sector Agnostic, Space Tech.
Where is Manta Ray Ventures located?
Manta Ray Ventures is headquartered in London, GB.
Who does Manta Ray Ventures co-invest with?
Manta Ray Ventures most often shares deals with Gaingels, Khosla Ventures, New Enterprise Associates (NEA), among 680 tracked co-investors.
What size deals does Manta Ray Ventures back?
Across 6 deals with disclosed amounts, Manta Ray Ventures has joined rounds of $3M – $63M (median $9.5M).

Co-investors · 6

General Catalyst

General Catalyst is a global venture capital and investment firm backing founders across stages and industries, with a notable focus on AI, healthcare transformation, defense, and space.

$30M
CapitalG

CapitalG is Alphabet's independent growth fund, investing capital and operational expertise to help growth-stage consumer and enterprise technology companies scale.

$75M – $100M
DN Capital

DN Capital is a global early-stage venture firm founded in 2000, investing in Seed, Series A and select Series B companies across Europe and North America.

Both backed · 2
$270K – $22M
First Round Capital

First Round Capital is an early-stage venture firm partnering with founders at the very first stages of company creation, backing companies from angel through seed with hands-on support across GTM, recruiting, and operations.

Both backed · 1
$100K – $20M
Amadeus Capital Partners

Amadeus Capital Partners is a UK-based deep tech venture capital firm founded in 1997 that invests in technology companies from seed to growth stage. Since inception it has backed over 200 companies and raised more than $1.3 billion.

Both backed · 1
$50K – $12.7M
SID Venture Partners

SID Venture Partners is an early-stage venture capital firm backing founders by combining capital with the engineering expertise and business-development resources of a group of leading software companies.

Both backed · 1
$200K

Firms observed investing alongside Manta Ray Ventures, from public investor directories. Shared companies are the overlap with Manta Ray Ventures's recorded portfolio.

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