Fundraising Fox

SBXi

Venture capital

Cambridge · Pre-Seed–Series A · 1 people tracked

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Investment thesis

SBXi invests in MIT alumni founders building generational companies across any sector. The fund emphasizes transparency, operational efficiency, and community support while remaining sector-agnostic. It provides accessible early-stage capital through a streamlined application process, aiming to enable founders to quickly close funding and focus on company building.

Invests inSector AgnosticCambridgeUnited States

Source: firm website, verified Aug 6, 2026.

Stage
Pre-Seed–Series A
Check
$10K – $1M
HQ
Cambridge, MA, US
Leads rounds
Follows
Instruments
Equity
Tracked investments
45

Team · 1 people

from public directories

What they invest in

from 42 of 45 portfolio companies

AI & Machine Learning ×23Healthtech ×10Hardware ×6SaaS ×6Deep Tech ×5Fintech ×5Medical Devices ×5Wellness & Fitness ×5

HQs:United States×23United Kingdom×1

Investments · 45 tracked

founders shown can be your intro path
1849 bio1849.bioin𝕏

1849 bio engineers microorganisms to make metal extraction from low-grade copper and gold ores economically viable for mining operations.

Advanced ManufacturingBiotechClimate TechSan Francisco, US

Jai Padmakumar(Founder)inYongjin Park(Founder)in

Co-investorsSunna VenturesY Combinator

Acyberacyber.coin

Acyber provides offensive security tooling, including a platform called FUZZ-E, to support commercial and government penetration testers and hackers in finding vulnerabilities and compromising networks.

CybersecurityDefense TechGovTech

Co-investorsShield Capital

Aeroshieldaeroshield.techin

AeroShield is a materials science company that developed an ultra-clear silica aerogel, originating from research at MIT, aimed at improving the energy efficiency of buildings.

Advanced ManufacturingCleantechEnergyNew MaterialsCambridge, US

Elise Strobach(CEO)inKyle Wilke(Director)inDr. Elise Strobach(CEO)

BoardSusan Stewart(Director)Brandon Tinianov(Director)inStephen Venuto(Director)

Co-investorsClean Energy VentureMassMutual VenturesMassVentures

Aidyaidyhq.comin𝕏

Aidy is a free digital health platform for people with inflammatory bowel disease (IBD) that helps track symptoms, identify food and medication triggers, monitor treatments, and generate reports for physicians.

Digital HealthHealthtechWellness & FitnessSan Francisco, US

Max Williamson(Founder)inPeter Crocker(Founder)inGreg Miller(Founder)in

Co-investorsY Combinator

Almondfintechalmondfintech.comin𝕏

Almond provides an FX and treasury platform that automates and optimizes cross-border payouts, remittances, and settlements by selecting the best combination of routing, timing, and token/chain composition in real time.

AI & Machine LearningCrypto & Web3Fintech

Co-investorsQUBIC Labs

Altrinaaltrina.comin𝕏Defunct

Altrina provides intelligent automation software for regulated enterprises, specifically healthcare and legal back offices, that executes processes across fragmented systems and maintains compliance.

AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSSan Francisco, US

Mo Nasir(Founder & CEO)inHarvey Hu(Founder)in

Co-investorsY Combinator

Amby Healthtryamby.comin𝕏

Amby is an AI coaching app that delivers personalized training plans via text messages, integrating data from Strava, Garmin, and Apple Health to provide proactive check-ins and coaching for endurance athletes.

AI & Machine LearningHealthtechSaaSWellness & FitnessSan Francisco, US

Yos Wagenmans(Founder)inTimmy Dang(Founder)in

Co-investorsY Combinator

Amiraamira.care

Amira makes Terra, a smart sleep system that predicts and prevents menopausal hot flashes using a wrist sensor that tracks skin moisture and movement and a mattress cooling pad that circulates chilled water.

FemTechHardwareWellness & Fitness

Co-investorsDorm RoomSupermoon Capital

Amplified Industriesamplified.industriesin𝕏Mar 2025

Amplified Industries builds wireless sensors and an AI-driven platform for monitoring and optimizing oilfield assets, offering well data capture, pump diagnostics (DynaCard/PumpCard), remote pump-off control, and spill and leak prevention.

AI & Machine LearningEnergyIoTBoston, US

Sebastien Mannai(Executive Officer, Director)Charles-Henri Clerget(Executive Officer, Director, Promoter)

BoardWilliam Severns(Director)Alexandra Manick(Director)

Co-investorsArgon VenturesSchooner Capital

Apersapers.app

Apers is an AI system for institutional real estate that reads deal documents in a data room, builds financial models, and drafts investment memos end to end.

AI & Machine LearningFintechPropTech

Apertureaperture.space

Aperture is a vertically integrated technology company that builds low-frequency radar satellite payloads and a soil moisture insights platform.

AgTechDeep TechSpace Tech

Ariniarini.aiin𝕏

Arini is an AI-powered front desk system for dental groups, DSOs, and private practices that handles patient calls and text messages 24/7, offering scheduling, call routing, and custom workflow management.

AI & Machine LearningHealthtechSan Francisco, US

Abdul Jamjoom(Founder)inRami Rustom(Founder)in

Co-investorsJ17 CapitalTranspose Platform ManagementY Combinator

Aslanaslanprotects.comin

Aslan builds technology to detect and disrupt online-organized harm such as mass violence, trafficking, and transnational crime by operating within the digital environments where these activities are coordinated.

AI & Machine LearningCybersecurityDefense Tech

Co-investors2048 VenturesBoxGroup

Augmendaugmend.health

AugMend provides a software layer that uses AI and self-guided VR intake sessions to capture patients' biopsychosocial self-reported data before face-to-face provider visits, producing structured clinical briefs and billing-ready documentation.

AI & Machine LearningDigital HealthHealthtech

Auroramedtechauroramedtech.comin

The page profiles a scientific advisor in surgical endoscopy and flexible robotics, indicating the company operates in medical technology related to interventional endoscopy and minimally invasive surgery.

HealthtechMedical Devices

BoardSilvana Perretta(Scientific Advisor)in

Co-investorsGROOVE CAPITAL

Autonomusautonomus.ai

AutonomUS develops technology to automate and standardize image-guided interventional medical procedures, aiming to make specialist interventional expertise available across settings from ERs and outpatient clinics to operating rooms and battlefield care.

HealthtechMedical DevicesRobotics

Anthony Samir(Founder)Romeo Catracchia(CEO)Matt Johnson(CTO)Michael Blaivas(CMO)Michael Pereira(CPO)

BoardBrian McEathron(Board Member)

Avocagetavoca.aiin𝕏

Avoca provides always-on AI voice and messaging agents that handle inbound calls, texts, and chats, run outbound SMS and call campaigns, and score calls for coaching in home and field service businesses.

AI & Machine LearningSaaSSales Tech

Basaltbasalt.spacein𝕏

Basalt operates managed satellite constellations controlled by artificial intelligence, serving private companies and government agencies that lack aerospace expertise and want to collect and stream satellite imagery and data to their devices.

Advanced ManufacturingAI & Machine LearningSpace TechSan Francisco, US

Maximillian Bhatti(Founder)in

Co-investorsCortado VenturesPeakTranspose Platform ManagementY CombinatorKima Ventures

Buildblueshiftbuildblueshift.comin

BlueShift develops and operates modular mineral-processing assets that combine on-site electrochemical reagent generation, intensified processing hardware, and intelligence software to reduce the cost and lead-times of critical mineral processing.

CleantechDeep TechNew Materials

Buntinglabsbuntinglabs.comin𝕏

Bunting Labs builds an AI-powered QGIS plugin that automates tracing and vectorizing features from maps, with tools for styling vector layers, controlling label rendering, and applying attribute-based rules.

AI & Machine LearningDeep TechGovTech

Cambridge Terahertzthzcorp.cominMay 2025

Cambridge Terahertz commercializes terahertz sensor technology based on MIT research, delivering compact on-chip radar systems that use non-ionizing radio waves to create 3D images analyzed by AI.

AI & Machine LearningDeep TechDefense TechHardwareCambridge, GB

Nathan Monroe(Executive Officer, Director)in

BoardCarolyne LaSala Holtorf(Director)Anand Dixit(Director)in

Co-investorsFelicis Venturesfutureland venturesGood Growth CapitalNeotribe VenturesSilicon Catalyst

CareOasisthecareoasis.comin𝕏

CareOasis provides a platform that helps family caregivers obtain certification, enroll in federal compensation programs, and access training resources.

FintechHealthtechWellness & FitnessDover, US

Anuhya Vajapey(Founder)inJuan M Ochoa Ortiz(Founder)in

Co-investorsY Combinator

Cascadegocascade.aiin

Cascade builds an AI agent platform that automates HR and IT support for employees, handling requests across benefits, policy, leave, and access credentials with an identity-first, least-privilege architecture.

AI & Machine LearningEnterprise SoftwareHR TechBellevue, US

Co-investorsGradient VenturesMyriad Venture PartnersA16Z SpeedrunAda VenturesAndreessen Horowitz

CassVitacassvita.comin

CassVita uses a process to extend the shelf-life of cassava from 3 days to 18 months and processes the crop in automated facilities into fufu, flour, starch, and animal feed, which it sells to multinationals including Nestle.

AgTechFoodTechImpact & Social Good

Pelkins Ajanoh(Cofounder)

Co-investorsDorm RoomFINCA VenturesMulago Foundation

Centaurcentaur.aiin𝕏

Centaur.ai uses performance-based AI and collective intelligence methods to improve medical decision-making in skin lesion assessment for cancer detection.

AI & Machine LearningData & InfrastructureHealthtechMedical DevicesBoston, US

Erik Duhaime(Founder)inTom Gellatly(Founder)inZach Rausnitz(Founder)in

Co-investorsY CombinatorSignalFire

Cerulioncerulion.comin𝕏

Cerulion provides a ROS2-compatible robot middleware that achieves microsecond-latency inter-process communication through zero-copy shared memory and deterministic execution.

Developer ToolsEnterprise SoftwareRoboticsSan Francisco, US

Lakshay Sharma(Founder/CEO)in

Co-investorsOlive Tree CapitalY Combinator

Circuit Securitycircuitsecurity.comin𝕏

Circuit is a security response platform for digital assets that automatically moves or sweeps crypto assets to pre-approved vaults when wallets are compromised, keys are lost, or infrastructure fails.

Crypto & Web3CybersecurityFintech

Co-investorsNycaNyca Partners

Cision Visioncisionvision.com

Cision Vision develops the InVision Shortwave Infrared (SWIR) imaging system and AI-powered tools for pathology and surgery, including real-time intraoperative critical structure identification and lymph node grossing assistance.

AI & Machine LearningHealthtechMedical Devices

Jeremy Li(CEO)

Co-investorsThe E14 Fund

Civicatlascivicatlas.netin

Civic Atlas digitizes public government records such as plats, zoning files, and case histories, pairing AI processing with human verification to move them into cloud and GIS systems.

AI & Machine LearningGovTechPropTechDallas, US

Cogniscreencogniscreen.ai
Coppercopperhome.comin

Copper makes induction stoves with integrated battery energy storage that enable home electrification without major electrical upgrades.

CleantechClimate TechConsumerHardwareBerkeley, US

Sam Calisch(Founder & CEO)in

Co-investorsClimacticCollaborative FundDesigner FundMMC VenturesNecessary VenturesNorwest Venture Partners+3 more

Crabi Roboticscrabi-robotics.comin

CRABI is an autonomous marine robotic system that cleans and inspects vessel hulls in-transit, removing biofouling to lower hull resistance and improve fuel efficiency.

CleantechClimate TechRobotics

Levi Gershon(Founder)

Co-investorsXfund

CreativeModecreativemode.netin𝕏

CreativeMode is an AI-powered platform that enables players to create Minecraft mods without coding knowledge by describing their ideas.

AI & Machine LearningConsumerCreator EconomyGamingSan Francisco, US

Wilson Spearman(Founder & CEO)inColeman Smith(Founder)inJeffrey Tsaw(Founder)in

Co-investorsY CombinatorLombardstreet Ventures

Cryptoclearcryptoclear.aiin𝕏

CryptoClear provides crypto ecosystem ratings and portfolio analysis, inspecting blockchains and using big data and AI algorithms to detect unusual transaction patterns and assess risk.

AI & Machine LearningCrypto & Web3Fintech

DaVinci Wearablesdavinciwearables.comin𝕏

DaVinci Wearables makes smart wearable technology, including clip-on sensors and instrumented underwear, that tracks menstrual cycles, bloating, and physiological metrics to provide AI-driven health insights for female athletes and active individuals.

FemTechHardwareWellness & FitnessSunnyvale, US

Co-investorsElevate VenturesTechstarsApplied Research Institute

Diplo Aidiplo-ai.com

Daptic offers an AI-powered platform for regulatory and product compliance, helping global manufacturers build and sell compliant products by connecting compliance and engineering teams.

Advanced ManufacturingAI & Machine LearningSaaS

Co-investorsEntrepreneurs Roundtable Accelerator (ERA)REFASHIOND Ventures

Eggnogeggnog.aiin𝕏

Eggnog develops AI-powered mobile applications for creating animated videos, marketed toward users who want to turn personal memories and shared humor into visual content.

AI & Machine LearningConsumerSan Francisco, US

Sam Plank(Founder)in

Co-investorsY Combinator

Eigentxeigentx.comin𝕏

Eigen develops co-therapies that modulate cancer cell target expression to improve the effectiveness of targeted treatments such as antibody-drug conjugates and radioligand therapies.

AI & Machine LearningBiotechRoboticsRedwood City, US

Co-investorsZAKA VC

Encora Therapeuticsencoratherapeutics.comin𝕏

Encora Therapeutics makes the Encora X1, an FDA-cleared, prescription wrist-worn device that uses mechanical neurostimulation to relieve hand tremors in adults with essential tremor.

HardwareHealthtechMedical Devices

Daniel Carballo(Cofounder)Allison Davanzo(Cofounder)Kyle Pina(Cofounder)

Co-investorsGood Growth CapitalInnospark VenturesSafar Partners

Filloutfillout.comin𝕏

Fillout is an online form builder that lets users create customized, branded forms with custom workflows, logic, embeds, and custom domains.

Developer ToolsEnterprise SoftwareSaaS

Co-investors1818 Venture CapitalBonfire VenturesEdmonton UnlimitedForum VenturesGLOCAL LatamMandalay Venture Partners+5 more

Founder Studiobrighteyevc.notion.sitein𝕏

Thymia builds AI models that assess mental health conditions by combining voice, video, and behavioral data for a multi-modal evaluation.

AI & Machine LearningDigital HealthFuture of WorkMental HealthSaaS

Co-investors1991 Ventures30X30 Scaleup ProgramAngel Collective Opportunity FundAtinum Investment Co. Ltd.b2ventureBonfire Ventures+31 more

Lightmatter®lightmatter.coin𝕏

Lightmatter builds photonic interconnect and compute technologies for AI infrastructure, enabling faster data transfer between processors in large AI clusters.

AI & Machine LearningData & InfrastructureHardwareSemiconductorsMountain View, US

Darius Bunandar(Executive Officer, Director)Nicholas C. Harris(Executive Officer, Director)Thomas Graham(Executive Officer)inNicholas Harris(Founder)inColin Sturt(Executive Officer)Simona Jankowski(Executive Officer)

Co-investorsEastward Capital PartnersMatrixSIP Global PartnersSpark CapitalLockheed Martin Ventures

Ontologicontologic.ly
Polygencepolygence.orgin𝕏

Polygence is an online mentorship platform that pairs high school students with expert mentors for self-directed research projects across any academic discipline.

Deep TechEdTechQuantum Computing

Janos Perczel(CEO and Founder)inJin Chowin

Co-investorsFloodgateReach CapitalNorthern Light Venture Capital

Tryparitytryparity.com

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has SBXi made?
SBXi has 45 tracked investments, including 2 dated in the last 24 months.
What stage does SBXi invest at?
SBXi invests at the Pre-Seed, Seed, Series A stages.
What is SBXi's typical check size?
SBXi typically writes checks of $10K – $1M.
What sectors does SBXi focus on?
SBXi focuses on Sector Agnostic.
Where is SBXi located?
SBXi is headquartered in Cambridge, US.
Does SBXi lead rounds?
SBXi typically participates in rounds rather than leading them.
Who does SBXi co-invest with?
SBXi most often shares deals with Y Combinator, Bonfire Ventures, Dorm Room, among 93 tracked co-investors.

Images

SBXi photoSBXi photo

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