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Riverbend Capital

Angel network

Washington · Pre-Seed–Late Stage · 15 people tracked

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Investment thesis

Originating as a DC-area solo-angel group under Mark Dumas, Riverbend Capital pooled member knowledge, deal flow, and connections to invest in startups, later broadening into later-stage high-growth ventures under Aaron Berkey. It has since restructured and rebranded as Okeanos Venture Management. The firm operates a member-driven model spanning venture capital, private equity, and real estate, giving individual investors access to top-tier VC-led rounds typically reserved for large institutions. Leveraging a 10-year track record and 300+ members whose sector expertise supports sourcing and diligence, the firm invests across early to late stages, including pre-IPO and crossover rounds, aiming to maximize diversification and returns.

Source: firm website, verified Aug 16, 2026.

Stage
Pre-Seed–Late Stage
HQ
Washington, Virginia, US
Instruments
Equity
Founded
2016
Tracked investments
30
Unicorns
19
IPOs
3

Team · 15 people

from the firm's website & curated & public directories
Kim Ziesemer· Partner, Diligence & Communicationsin
AJ Mushtaq· Advisor, PEin
Drew Fearson· Advisor, Cyberin
Justin Heaton· Associate, Finance & Investment Operationsin
Summer Myers· Executive Operations Managerin
Randolph Newcomer, Jr.· Executive Officerin

What they invest in

from 27 of 30 portfolio companies

AI & Machine Learning ×21Enterprise Software ×11Cloud Computing ×6Data & Infrastructure ×6Deep Tech ×6SaaS ×6Developer Tools ×5Defense Tech ×3

HQs:United States×24Canada×1

Who they back

founder profiles across 25 portfolio companies
12%
solo founders
3 of 25 mapped founding teams
42%
repeat founders
of 66 founders with career history

Founding team size:solo founder×32 founders×53 founders×94+ founders×8

Where their founders studiedfrom 59 founders with education data

Harvard University ×9Massachusetts Institute of Technology ×7University of California, Berkeley ×5Stanford University ×4University of Toronto ×3Carnegie Mellon University ×2Indian Institute of Technology, Delhi ×2New York University ×2

What their founders studiedfrom 49 founders with field-of-study data

Computer Science ×26Engineering ×12Humanities ×4Mathematics & Statistics ×4Physics ×4Business & Management ×2Design & Architecture ×2Economics ×2

Where their founders worked beforefrom 66 founders with career history

Google ×16OpenAI ×8AMD ×5SeaMicro ×4Stanford University ×4Microsoft ×3Quora ×38VC ×2

Accelerator rootsportfolio companies that came through a program

Y Combinator ×2

15 founders hold a PhD · 6 hold an MBA (of 60 with degree data)

Investments · 30 tracked

founders shown can be your intro path
Cavacava.comNYSE: CAVA

CAVA Group operates a chain of fast-casual Mediterranean restaurants serving customizable bowls and pitas, with 439 locations across 28 states and Washington, D.C., and manufactures and sells Mediterranean dips, spreads, and dressings in retail grocery channels.

Ted Xenohristos(Founder)inIke Grigoropoulos(Founder)inBrett Schulman(Chief Executive Officer and President)Theodoros Xenohristos(Chief Concept Officer)Ron Shaichin

Co-investorsCamino PartnersDeclaration PartnersDopamine VenturesRevolutionSWaN & Legend Venture PartnersT. Rowe Price

Cerebras Systemscerebras.aiin𝕏NASDAQ: CBRS

Cerebras designs and manufactures wafer-scale AI processors and systems for data centers, enabling high-speed AI training and inference workloads.

AI & Machine LearningDeep TechHardwareSemiconductorsSunnyvale, US

Andrew Feldman(Chief Executive Officer and Co-Founder)inGary Lauterbach(Chief Technology Officer, Emeritus and Co-founder)inMichael James(Chief Architect, Advanced Technologies and Co-Founder)inSean Lie(CTO and Co-Founder)inJean-Philippe Fricker(Chief System Architect and Co-Founder)in

Co-investors2080 VenturesAlpha Wave GlobalArtisanal VenturesAurum Venture PartnersAzure Ventures GroupB Capital+41 more

SpaceXspacex.comNASDAQ: SPCX

Revolutionizing space technology to make life multi-planetary

Hawthorne, US

Elon Musk(Founder, CEO & Chief Engineer)inBret Johnsen(Executive Officer)inGwynne Shotwell(Executive Officer, Director)

BoardAntonio Gracias(Director)inSteve Jurvetson(Director)inDonald Harrison(Director)

Co-investors1/1 Capital137 Ventures1802 Ventures2080 Ventures3Spoke Capital4DX Ventures+197 more

Adipo Therapeuticsadipotherapeutics.comin

Adipo develops investigational therapeutics that promote weight loss by activating brown fat to increase energy expenditure, offering an alternative to appetite-suppressing drugs like GLP-1s.

BiotechHealthtechLongevityIndianapolis, US

Keith Johns(Executive Officer)inKaren Wurster(Executive Officer, Director)inMeng Deng(Director)

BoardMichael Clayman(Director)

Co-investorsElevate VenturesIU Ventures

Aletheaalethea.cominOct 2022

Alethea provides Artemis, an AI-powered risk management platform that detects and contextualizes information manipulation, coordinated influence operations, and online disinformation threats.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaSWashington, US

Lisa Kaplan(Founder & CEO)Fiona Taylor(Executive Officer)in

BoardTed Schlein(Director)inCarl Smith, Jr.(Director)

Co-investorsBallistic VenturesBitkraft Esports VenturesGV (Google Ventures)Hakluyt CapitalNascentOwl Capital+1 more

Anthropicanthropic.comin𝕏

Anthropic is an AI safety research company that builds reliable, interpretable, and steerable AI systems.

AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSan Francisco, US

Dario Amodei(Co-founder & CEO)inDaniela Amodei(Co-founder & President)inTom Brown(Co-founder)inJack Clark(Co-founder & Head of Policy)inJared Kaplan(Co-founder & Chief Science Officer)inChris Olah(Co-founder & Interpretability Research Lead)in

Co-investors3Comma Capital7BC Venture Capital7GC & CoA.Capital VenturesAccelAkka+144 more

BoodleBoxboodlebox.aiin𝕏

BoodleBox is a collaborative intelligence platform where people work together with multiple AI models in shared spaces, framing problems and validating answers rather than relying on single-user chatbots.

AI & Machine LearningEdTechEnterprise SoftwareFuture of WorkSaaS

France Q. Hoang(Founder)in

Co-investorsAIN VenturesCity LightDOGWOOD VENTURESJFFLabs, INC.JHH vcService Provider Capital+3 more

Cognition AIcognition.aiin𝕏

Cognition develops Devin, an autonomous AI software engineer agent that plans, writes, tests, and deploys production code within existing development environments to augment human engineering teams.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSan Francisco, US

Scott Wu(Co-founder & CEO)inWalden Yan(Founder)inSteven Hao(Founder)in

Co-investors137 Ventures20VC8VCAbstract VenturesAlpha Wave GlobalAndreessen Horowitz+25 more

Coherecohere.comin𝕏

Cohere builds foundational AI models and enterprise solutions that help businesses automate tasks, accelerate workflows, and enhance decision-making.

AI & Machine LearningDeep TechDeveloper ToolsEnterprise SoftwareSaaSToronto, CA

Aidan Gomez(Co-founder & CEO)Ivan Zhang(Co-founder)inNick Frosst(Co-founder)in

Co-investors1802 VenturesAccess Ventures (New York)Advaita CapitalAju IB InvestmentAlumni VenturesBasecamp Fund+29 more

Crusoecrusoe.aiin𝕏

Crusoe builds energy-first AI infrastructure, using innovative and renewable energy sources to power hyperscale AI factories and a cloud platform for AI workloads.

AI & Machine LearningCloud ComputingData & InfrastructureEnergyDenver, US

Cully Cavness(Co-founder, President and Chief Strategy Officer)inChase Lochmiller(Co-founder, CEO and Chairman of the Board of Directors)inCharles Cavness(Executive Officer, Director)Matthew DeNezza(Executive Officer)inJamey Seely(Executive Officer)inMichael Gordon(Executive Officer)in

Co-investorsAbstract VenturesACTIVATE CAPITAL PARTNERSAdvaita CapitalAir Street CapitalAkkaAlkeon Innovation+69 more

Databricksdatabricks.comin𝕏

Databricks provides a unified platform for data engineering, analytics, and artificial intelligence, enabling organizations to build and deploy data and AI applications on cloud infrastructure.

AI & Machine LearningCloud ComputingData & InfrastructureEnterprise SoftwareSan Francisco, US

Ali Ghodsi(Co-founder & CEO)inIon Stoica(Executive Officer, Director, Promoter)inMatei Zaharia(Executive Officer, Director, Promoter)inReynold Xin(Founder)inPatrick Wendell(Founder)inAndy Konwinski(Founder)in

Co-investors137 VenturesA.Capital VenturesAglae VenturesAlkeon InnovationAlpha Square GroupAltra Venture+108 more

Function Healthfunctionhealth.comin𝕏

Function Health provides routine whole-body lab testing, advanced imaging, and access to top doctors to help individuals achieve preventive health awareness and disease avoidance.

Digital HealthHealthtechWellness & Fitness

Mark Hyman(Co-founder and chief medical officer)inJonathan Swerdlin(Co-founder and CEO)inPranitha Patil(Co-founder and chief business officer)inSeth Weisfeld(Co-founder and chief design officer)inDan Swerdlin(Co-founder and general counsel)inEmi Gal(CEO, Ezra)in

Co-investors1843 Capital53 StationsAble PartnersAgeTech CapitalAglae VenturesAlumni Ventures+32 more

Fundamentalfundamental.ai

Fundamental.ai develops large language models built from first principles, with each component designed around explicit mathematical understanding rather than opaque emergent behavior.

AI & Machine LearningDeep Tech

Bertrand(Co-Founder & CEO)inGreg(Co-Founder & COO)in

Co-investorsBattery VenturesHetz VenturesOak HC/FTSalesforce VenturesValor Equity Partners

Gleanglean.comin𝕏

Glean provides an AI-powered workplace search and knowledge management platform that connects company data across documents, messages, tickets, and systems to help teams access information and complete work.

AI & Machine LearningEnterprise SoftwareSaaSSilicon Valley, US

Arvind Jain(Founder & CEO)inTony Gentilcore(Co-founder, Engineering)inT.R. Vishwanath(Co-Founder and Technical Infrastructure Lead)inPiyush Prahladka(Co-Founder Emeritus)in

Co-investorsAdvaita CapitalCategory VenturesCoatue ManagementCold Start VenturesCraft VenturesDash VC+27 more

Groq Incgroq.comin𝕏

Groq designs and manufactures the LPU (Language Processing Unit), a chip purpose-built for AI inference, and operates GroqCloud, a platform for running inference workloads with low latency and cost efficiency across global data centers.

AI & Machine LearningCloud ComputingSemiconductorsPalo Alto, US

Jonathan Ross(CEO)inDouglas Wightman(Executive Officer, Director)

BoardChamath Palihapitiya(Director)in

Co-investorsAccess Ventures (New York)Acequia Capital (AceCap)Alumni VenturesAxiom PartnersB CapitalBanca Investis — Family Office+70 more

Harveyharvey.aiin𝕏

Harvey provides domain-specific AI products for legal and professional services firms, enabling contract analysis, due diligence, compliance, and litigation tasks.

AI & Machine LearningEnterprise SoftwareLegalTechSan Francisco, US

Winston Weinberg(Co-founder & CEO)inGabe Pereyra(Founder)inGabriel Pereyra(Co-founder & President)in

Co-investorsAndreessen HorowitzKleiner PerkinsOpenAI Startup FundArtisanal VenturesCaesar VenturesCoatue Management+25 more

Lambda Labslambda.aiin𝕏

Lambda operates cloud infrastructure and supercomputers purpose-built for AI training and inference, serving hyperscalers, enterprises, and frontier AI labs.

AI & Machine LearningCloud ComputingData & InfrastructureSan Francisco, US

Stephen Balaban(Founder)in

Co-investorsAccess Ventures (New York)Alumni VenturesBasecamp FundCRESCENT COVE CAPITALDigerati Investmentsfutureland ventures+11 more

Open Evidenceopenevidence.com

AI company developing a medical search engine used by physicians for clinical decision support.

Daniel Nadler(Founder & CEO)inZachary Ziegler(Founder)

Co-investorsAlkeon InnovationAmity VenturesAndreessen HorowitzBas1s VenturesBond Capital ManagementBreyer Capital+24 more

OpenAIopenai.comin𝕏

OpenAI is an AI research and deployment company focused on developing artificial general intelligence (AGI) with emphasis on safety and beneficial outcomes for humanity.

AI & Machine LearningCloud ComputingEnterprise SoftwareSan Francisco, US

Sam Altman(Co-founder & CEO)Elon Musk(Co-founder & former Co-chair / board member)inGreg Brockman(Co-founder & President)inIlya Sutskever(Co-founder & Chief Scientist)inWojciech Zaremba(Co-founder)inJohn Schulman(Co-founder (departed 2024))

Co-investors7BC Venture CapitalA-Rod CorpA.Capital VenturesA'Z AngelsAdvent InternationalAliya Capital Partners+94 more

Ouraouraring.com

Oura Ring is a wearable smart ring that collects and analyzes 50+ personal health metrics to provide insights on sleep, fitness, and wellness for individual users.

HardwareHealthtechWellness & FitnessSan Francisco, US

Ashley Colley(Founder)Virpi Tuomivaara(Founder)inTom Hale(CEO)in

Co-investors125 VenturesA-Rod CorpAble PartnersAlumni VenturesBasecamp FundBold Capital Partners+33 more

Overtimeovertime.tv𝕏

Overtime creates and operates new sports leagues and media IP — including OTE and OT Select in basketball and OT7 and OT Nationals in football — while producing over 150 weekly pieces of original sports content for its global audience of next-generation fans and athletes.

ConsumerCreator EconomyMedia & EntertainmentSports TechBrooklyn, US

Zachary Weiner(Founder)inZack Weiner(Founder)inDan Porter(Founder & CEO)

Co-investors359 CapitalAndreessen HorowitzBezos ExpeditionsBlack CapitalSpark CapitalWinslow Capital+29 more

Replitreplit.comin𝕏Mar 2022

Replit is a platform for software development that aims to make app creation accessible to non-programmers through intuitive tools and AI agents.

AI & Machine LearningCloud ComputingCreator EconomyData & InfrastructureDeveloper ToolsEdTechEnterprise SoftwareMarketing TechSaaSSan Francisco, US

Haya Abdalla(Founder)inAmjad Masad(Co-founder & CEO)inHaya Odeh(Co-Founder, Design)inLuis Héctor Chávez(CTO)

Co-investors137 Ventures7BC Venture CapitalA.Capital VenturesAbstract VenturesAIspace VenturesAllied Venture Partners+63 more

Saronicsaronic.comin𝕏

Saronic builds autonomous surface vessels — including the 180-foot, long-range Marauder — along with Echelon, a command-and-control software layer for planning, simulating and operating single vessels or fleets.

AI & Machine LearningDefense TechHardwareRoboticsAustin, US

Dino Mavrookas(Co-Founder and CEO)inRob Lehman(Co-Founder and CCO)inVibhav Altekar(Co-Founder and CTO)inDoug Lambert(Co-Founder and COO)inPatrick DePriest(Chief Financial Officer)inSoo Cho(Chief People Officer)in

Co-investors1Flourish Capital8VCAdvent InternationalAlpha PartnersAndreessen HorowitzAnti+34 more

Scale AIscale.comin𝕏

Scale provides high-quality training data, model evaluations, and full-stack AI systems for enterprises and governments to build and deploy AI applications.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Alexandr Wang(Co-founder & CEO)inLucy Guo(Co-founder)inFrancis deSouza(CEO)in

Co-investors1435 CapitalAccelAdit Ventures Management, LlcAIspace VenturesAlpana VenturesAlpha Square Group+98 more

Shield AIshield.ai

Shield AI develops AI pilot systems for military applications including aircraft, drones, ships, satellites, and submarines.

AI & Machine LearningDefense TechSan Diego, US

Brandon Tseng(President & Co-Founder)inRyan Tseng(President, Co-Founder & Chief Strategy Officer)inAndrew Reiter(Co-Founder)inKingsley Afemikhe(Executive Officer)inGary Steele(Chief Executive Officer)in

BoardKeith Dunleavy(Director)

Co-investors515 Ventures645 VenturesAdvaita CapitalAF WPartnersAlpha PartnersAltra Venture+41 more

Starlab Spacestarlab-space.comin𝕏

Starlab is developing a commercial space station intended to support microgravity research, commercial innovation, and international collaboration in low-Earth orbit.

Deep TechSpace TechHouston, US

Marshall Smith(CEO)inBob EssinBrad Henderson(Chief Commercial Officer)inPaul Schauer(Chief Procurement Officer)in

Co-investorsFrontera Technology VenturesMercury Fund1789 CapitalVoyager Technologies

Stordstord.coin𝕏

Stord operates a connected platform for supply chain orchestration, letting brands manage, scale, and optimize logistics and warehousing from a single system rather than stitching together separate 3PLs and software.

AI & Machine LearningE-commerceLogistics & Supply ChainSaaSAtlanta, US

Sean Henry(Co-founder & CEO)inJacob Boudreau(Co-founder & CTO)inJacob Boudrea(Executive Officer, Director)in

BoardJohn Lagomarsino(Director)Ilya Fushman(Director)inScott Dorfman(Director)

Co-investorsKleiner Perkins137 VenturesArcher Capital GroupArcher Venture CapitalB Capital GroupB4 Capital+14 more

Vedadatavedadata.comin𝕏

H1 operates an AI-powered platform that identifies and connects users with healthcare providers, offering data and analytics across clinical trials, medical affairs, commercial engagement, and provider data management.

AI & Machine LearningData & InfrastructureDigital Health

Voyager Spacevoyagertechnologies.comin𝕏

Voyager Technologies is a defense and space technology company developing capabilities in advanced electronics, mission management, orbital data centers, space exploration, spectrum dominance, and strategic systems across air, land, space, and cyber domains.

Deep TechDefense TechSpace Tech

Co-investorsCapital FactorySpaceFundSilent Ventures

Worldcoinworld.orgin𝕏

World provides a system for verifying that online users are real, unique humans, combining privacy-preserving proof-of-human identity with financial infrastructure and a digital token.

AI & Machine LearningCrypto & Web3FintechSector AgnosticSan Francisco, US

Sam Altman(Co-founder & Chairman (Tools for Humanity))Alex Blania(Co-founder & CEO (Tools for Humanity))inMax Novendstern(Co-founder (Tools for Humanity))in

Co-investorsAndreessen HorowitzBain Capital CryptoBlockchain CapitalKhosla Ventures1confirmationa16z crypto+20 more

Exits · 3

3 IPOs

CavaNYSE: CAVACerebras SystemsNASDAQ: CBRSSpaceXNASDAQ: SPCX

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Riverbend Capital made?
Riverbend Capital has 30 tracked investments, 3 of which have exited.
What stage does Riverbend Capital invest at?
Riverbend Capital invests at the Pre-Seed, Seed, Series A, Series B, Series C, Growth, Late Stage stages.
What sectors does Riverbend Capital focus on?
Riverbend Capital focuses on AI & Machine Learning, Healthtech, SaaS, Sector Agnostic.
Where is Riverbend Capital located?
Riverbend Capital is headquartered in Washington, US.
Who does Riverbend Capital co-invest with?
Riverbend Capital most often shares deals with Andreessen Horowitz, Coatue Management, Kleiner Perkins, among 342 tracked co-investors.

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