Seraph Group
Angel networkMilton · Pre-Seed–Growth · 7 people tracked
Investment thesis
Seraph Group invests its own capital in early-stage companies across diverse industries, sectors, and geographies, then makes the same opportunities available to its network of accredited-investor LPs for co-investment at identical terms. Opportunities are vetted by a full-time investment team and industry experts. The firm operates structured angel funds that take positions in 20+ early-stage companies under a partner's direct management, plus growth equity funds that make follow-on investments in its best-performing portfolio companies. It also enables members to self-select and build their own portfolios across early and growth stages, providing startups with a single, well-connected line item on the cap table.
Source: firm website, verified Aug 3, 2026.
Team · 7 people
from the firm's website & public directories
What they invest in
from 26 of 44 portfolio companiesDigital Health ×7Hardware ×7Healthtech ×7Medical Devices ×6Advanced Manufacturing ×5AI & Machine Learning ×5Cleantech ×4Enterprise Software ×4
HQs:United States×21Canada×2United Kingdom×1
Who they back
founder profiles across 18 portfolio companiesFounding team size:solo founder×102 founders×53 founders×3
Where their founders worked beforefrom 11 founders with career history
Virgin Orbit ×2
Accelerator rootsportfolio companies that came through a program
Investments · 44 tracked
founders shown can be your intro pathBy year:2025 · 52021 · 12019 · 32015 · 110 dated
actnano develops PFAS-free, gel-state conformal coatings (Advanced nanoGUARD) that protect printed circuit boards and electronics from water, condensation, and harsh environments.
CleantechHardwareNew MaterialsCambridge, US
S. Taymur Ahmad(Executive Officer, Director)Taymur Ahmad(Founder)inWilliam Brewer(Executive Officer)James F. Sheridan, Jr.(Executive Officer)Ivan Ardemagni(Executive Officer)Timothy Scott Housefield(Executive Officer)
Co-investorsBMW i VenturesEmerald Technology Ventures AgLiquidity CapitalMaterial ImpactTDK Ventures
Honolulu, US
Brandon Bennett(Executive Officer, Director)Alan Solidum(Executive Officer)Carey Bennett(Executive Officer)
BoardDan Freedman(Director)Donavan Kealoha(Director)
Co-investorsQuest Venture PartnersSocial StartsStartup Capital Ventures
Boom Supersonic develops supersonic aircraft and engines, including the Overture commercial airliner and the Symphony turbofan engine, targeting commercial aviation and advanced infrastructure applications.
Advanced ManufacturingDeep TechHardwareSpace TechCentennial, US
Blake Scholl(Founder/CEO)in
Co-investorsActivant CapitalAltra VentureAngel Collective Opportunity FundBessemer Venture PartnersCaruso VenturesDraper Associates+23 more
CoLabs Medical is developing The Ventor, an emergency airway and ventilation system intended to improve airway management and ventilation during cardiac arrest.
HardwareHealthtechMedical DevicesMorgan Hill, US
Robert Crockett(Executive Officer, Director)Chris Baker(Director)Bob Mellen(Director)Michael D. Laufer(Director)Clay Nolan(Executive Officer, Director)
Co-investorsAphelion CapitalHealthtech Capital
Cropsy builds AI-powered scanners that mount on vineyard vehicles such as tractors, harvesters, ATVs, and robots to profile individual vines during routine passes.
AgTechAI & Machine LearningHardware
Co-investorsPacific ChannelImpact Enterprise Fund
De-icing and anti-icing services for the aviation industry.
Advanced ManufacturingSomerville, US
Alexander Bratianu(Founder)in
Co-investorsFlucas VenturesHemisphere Ventures LLCHypothesisScout VenturesScout VenturesTechstars
De-Ice develops an electric heating technology for aircraft de-icing, eliminating chemical spraying and reducing departure delays.
CleantechClimate TechHardware
Alexander Bratianu(Founder)in
BoardJohn Owen(Co-founder and former CFO at JetBlue Airways)
Co-investorsPlayground GlobalScout VenturesScout Ventures
Co-investorsAccelFrontier Venture CapitalOcean Azul PartnersRoosh VenturesSocial Starts
Eko develops FDA-cleared digital stethoscopes and AI-powered software that enables healthcare professionals to detect and diagnose cardiovascular disease with greater accuracy.
AI & Machine LearningDigital HealthHealthtechMedical Devices
Connor Landgraf(Co-Founder and CEO)Tyler CrouchJason Bellet(Co-Founder and Chief Business Officer)in
Co-investorsQuesta CapitalHighland Capital PartnersArtis VenturesBetter Ventures Central LlcDigiTx Partners LLCEvolution VC Partners+7 more
Hubble is a workspace marketplace for renting private offices, meeting rooms, coworking desks, and on-demand day space, helping companies configure and manage HQ, home, and flexible workspace arrangements.
Construction TechFuture of WorkMarketplacesPropTechLondon, GB
Tushar Agarwal(CEO)inTom Watson(CTO)inRohan Silva
Co-investors500 GlobalEntrepreneur FirstFirestartrJLL Spark Global VenturesMaxfield CapitalJLL Spark+3 more
Hubble.Build offers an integrated construction management software platform that digitizes and automates worksite workflows, covering cost management, documents, workforce, safety, quality, and project handover.
Construction TechPropTechSaaS
Co-investorsOSK Ventures InternationalTin Men CapitalRPM VenturesSeraphim SpaceY Combinator
Hubble provides an intelligence layer for patient information, reaching EHRs, payers, and patient records through APIs, browser, and voice to return a single normalized record with source traceability and audit trails.
AI & Machine LearningData & InfrastructureDigital HealthHealthtechSeattle, US
Prabha Dublish(CEO / Founder)inAaron Leon(Founder)in
Co-investorsY CombinatorRPM VenturesSeraphim Space
Hubble has created a Bluetooth connection to space and is building a global, battery-efficient, and cost-effective network using satellite technology.
Advanced ManufacturingDeveloper ToolsHardwareIoTSpace TechLas Vegas, US
Alex Haro(Founder)inBen Wild(Founder)in
Co-investorsConvective CapitalMarin Digital VenturesRpm Ventures Iii Management, L.L.C.Y CombinatorEarthshot VenturesRPM Ventures+1 more
Hubble Network has created the first Bluetooth connection to space as part of building a global, battery-efficient, and cost-effective satellite network.
Data & InfrastructureIoTSpace Tech
Co-investorsNew North VenturesPi CampusSeraphim SpaceTranspose Platform ManagementType One VenturesYes VC+3 more
Co-investorsIndustrious VenturesSterling Road
Vacaville, US
Kirk Hawkins(Executive Officer, Director)Rich Bridge(Executive Officer)Thomas Wieners(Executive Officer)Katherine DeHoff(Executive Officer)
BoardLiu Dan(Director)Du Yang(Director)
Co-investorsDolby Family Ventures
Ideaflow is a notebook application that aggregates knowledge from Slack, meetings, and documents to surface relevant information at the point of need.
AI & Machine LearningEnterprise SoftwareSaaSPalo Alto, US
Jacob Cole(Executive Officer, Director)in
Co-investorsDraper AssociatesFour Acres CapitalMachina VenturesRaptor GroupStreamlined VenturesBoxGroup+1 more
LifeSignals develops clinical-grade, disposable wearable biosensors and the UbiqVue wireless patient monitoring system that capture continuous vital signs such as 2-channel ECG for healthcare providers.
Digital HealthHardwareMedical Devices
LiteraSeed provides a patient intake tool that uses guided, picture-based prompts in a patient's preferred language and literacy level, converting responses into structured clinical summaries delivered into EHRs like Epic and Cerner before appointments.
AI & Machine LearningDigital HealthHealthtech
LTSE Private Markets is a platform operated by the Long-Term Stock Exchange that connects institutional and accredited investors to late-stage private companies through direct and secondary market transactions.
Enterprise SoftwareFintechSan Francisco, US
Eric Ries(Founder/CEO)inJohn Bautista(Founder)inNatalie Riso
Co-investors500 GlobalAndreessen HorowitzCollaborative FundFloodgateObvious VenturesY Combinator+1 more
MixRank provides workforce intelligence and company risk analysis data for investors and recruiters, offering access to employee and personnel records across 45 million companies with API, flat-file, and database delivery options.
Data & InfrastructureEnterprise SoftwareMarketing TechSaaSSales TechToronto, CA
Scott Milliken(Founder/CEO)inIlya Lichtenstein
Co-investors500 GlobalY Combinator
Natilus develops next-generation blended wing body aircraft for commercial cargo and passenger operations, designed to improve fuel efficiency, reduce emissions, and increase payload capacity.
Advanced ManufacturingCleantechSan Diego, US
Aleksey Matyushev(Founder)in
Co-investorsAurum Venture PartnersBeni Venture CapitalCapital FactoryDraper AssociatesFlucas VenturesInterlock Capital+6 more
Oculogica develops FDA-cleared concussion assessment devices that use proprietary eye-tracking technology to measure abnormal eye movements caused by traumatic brain injury.
BiotechDigital HealthHealthtechMedical DevicesNew York, US
Rosina Samadani(Executive Officer, Director)Uzma Samadani(Director)inPratipatti Laxminarain(Director)Jason Huang(Director)Robert Ritlop(Executive Officer)Bilal Khan(Director)
Co-investorsColle Capital PartnersTitletownTechGolden Seeds
OLOID provides passwordless authentication and identity access management for frontline and deskless workers using biometrics, badges, NFC, and device-based verification on shared devices, kiosks, and time clocks.
CybersecurityEnterprise SoftwareSaaSSunnyvale, US
Mohit Garg(Executive Officer, Director)Madhu Madhusudhanan(Executive Officer, Director)
BoardGregg Adkin(Director)inAnupam Rastogi(Director)in
Co-investorsEMERGENT VENTURESUnusual VenturesYaletown PartnersDell Technologies CapitalHoneywell VenturesOkta Ventures
Orca Bio develops allogeneic T-cell immunotherapies for high-risk blood cancers including acute myeloid leukemia, acute lymphocytic leukemia, and myelodysplastic syndrome.
BiotechDigital HealthHealthtechMedical DevicesCalifornia, US
Jeroen(Co-founder and President)Ivan Dimov(Executive Officer, Director)inNathaniel Fernhoff(Executive Officer, Director)in
BoardAlex Kolicich(Director)inJonathan MacQuitty(Director)in
Co-investors+ND Capital8VCDCVC (Data Collective)Felicis VenturesLightspeed Venture Partners
Marketplace for hourly venue rentals for meetings, productions, and events
San Francisco, US
Eric ShoupinRaymond Chammas(Executive Officer, Director)
BoardPaul Holland(Director)inGeorge Chammas(Director)
Co-investorsConvivialité VenturesFull In PartnersGFR FundRedbus VenturesCarthona CapitalFoundation Capital+3 more
Piersica develops solid-state lithium-metal batteries based on a proprietary lithium-conductive polymer separator and a fiber-based 3D lithium-metal anode, targeting energy densities around 600 Wh/kg.
CleantechEnergyNew MaterialsTallahassee, US
Joseph B. Schlenoff(Founder)Amir Rmaile(Founder)
Co-investorsJuniper
SRTX develops materials and software tools for textile manufacturing, with an initial product line of hosiery made from high-strength polymers.
Advanced ManufacturingRoboticsMontreal, CA
Katherine Homuth(Founder/CEO)in
Co-investorsY CombinatorArcTern VenturesG2 Venture PartnersKickstart VenturesZeno Ventures
UbiQD develops and manufactures quantum dot materials and products for controlled-environment agriculture, clean energy, and security applications.
AgTechDeep TechNew MaterialsLos Alamos, US
Hunter McDaniel(Founder and CEO)inMatthew Bergren(Executive Officer, Director)Bradley Harrison(Director)Tony Beams(Executive Officer)Colin Cumming(Director)Liseth Garay(Director)
Co-investorsClimate Impact CapitalDellin InvestmentsEPIC VENTURESKeiretsu ForumPhoenix Venture PartnersScout Ventures+3 more
Trousdale Ventures is a global venture capital firm that invests in mission-driven companies across climate tech, deep tech, space and mobility, and consumer sectors.
Sector AgnosticSeal Beach, US
Sarah Duggleby(Executive Officer, Director)Andrew Duggleby(Executive Officer, Director)
BoardPhillip Sarofim(Founder)in
Co-investorsCubit CapitalHalogen Ventures Management Company LlcMercury FundMESHRed Beard VenturesTamarack Global+5 more
Venus Aerospace develops rotating detonation rocket engine (RDRE) technology and a detonation ramjet system for space, defense, and commercial high-speed and hypersonic flight.
Deep TechDefense TechSpace TechTexas, US
Sassie Duggleby(CEO & Co-founder)inAndrew Duggleby(CTO & Co-founder)inSarah "Sassie" Duggleby(Founder)inTom Barron(Chief Operating Officer)Nick Cardwell(Chief Product Officer)inSheila Menz(General Counsel)in
Co-investorsAmerica's Frontier FundDraper AssociatesHalogen Ventures Management Company LlcHelios CapitalMercury FundPrime Movers Lab+8 more
Visby Medical manufactures at-home PCR tests for sexually transmitted infections, providing FDA-authorized results in 30 minutes.
Digital HealthFemTechHealthtechMedical DevicesTokyo, US
Adam de la Zerda(Founder)in
Co-investors+ND Capital1809 CapitalAmplify PartnersArtiman VenturesG Vision CapitalValo Ventures+2 more
Portfolio news
latest coverage across their companiesHubble Network · in.investing.com · Aug 18, 2026
Hubble · satellitetoday.com · Aug 18, 2026
Hubble · quoteddata.com · Aug 18, 2026
Hubble · ycombinator.com · Aug 10, 2026
Venus Aerospace · houston.innovationmap.com · Jul 30, 2026
Boom · bfsi.economictimes.indiatimes.com · Jul 17, 2026
CoLabs · natlawreview.com · Jul 2, 2026
Frequently asked questions
- How many investments has Seraph Group made?
- Seraph Group has 39 tracked investments.
- What stage does Seraph Group invest at?
- Seraph Group invests at the Pre-Seed, Seed, Series A, Growth stages.
- What is Seraph Group's typical check size?
- Seraph Group typically writes checks of $50K – $2M.
- What sectors does Seraph Group focus on?
- Seraph Group focuses on Sector Agnostic.
- Where is Seraph Group located?
- Seraph Group is headquartered in Milton, US.
- Does Seraph Group lead rounds?
- Seraph Group typically participates in rounds rather than leading them.
- Who does Seraph Group co-invest with?
- Seraph Group most often shares deals with Draper Associates, Y Combinator, Scout Ventures, among 143 tracked co-investors.
Media · Podcasts & interviews
featuring the teamInvestor Connect - 413 - Jake Moilanen of Seraph Group
Hall Martin · Jake Moilanen
Driving Innovation: Tuff Yen, Founder & CEO of Seraph Group
Tech Alpharetta · Tuff Yen
Tuff Yen, President of Seraph Group featured on national television - 12/19/13
Tuff Yen · vimeo.com
Images
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