Fundraising Fox

Riverbend Capital

Angel network

Washington · Pre-Seed–Late Stage · 13 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
29

Team · 13 people

from the firm's website
Jason Parikh· Co-Founder & Managing Partner, CFO
Brandon Leitner· Partner, Growth
Kim Ziesemer· Partner, Diligence & Communications
AJ Mushtaq· Advisor, PE
Dr. George Kartalian· Advisor, Med Tech
Drew Fearson· Advisor, Cyber
Justin Heaton· Associate, Finance & Investment Operations
Michelle Leyden Li· Advisor, Tech
Shap Bashar· Chair, Advisory Board
Steve Touw· Advisor, AI/Data/Cloud
Summer Myers· Executive Operations Manager

What they invest in

from 25 of 29 portfolio companies

AI & Machine Learning ×20Enterprise Software ×9Cloud Computing ×6Deep Tech ×5Data & Infrastructure ×4Developer Tools ×4Hardware ×4SaaS ×4

HQs:United States×15Canada×1

Investments · 29 tracked

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

Mediterranean-rooted food brand bringing health and heart to dining.

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 TechHardwareSemiconductors

Andrew Feldman(Co-founder & CEO)Gary LauterbachMichael JamesSean LieJean-Philippe Fricker

Adipo Therapeuticsadipotherapeutics.com

BiotechIndianapolis, US

Keith Johns(Executive Officer)Karen Wurster(Executive Officer, Director)Meng Deng(Director)

BoardMichael Clayman(Director)

Aletheaalethea.comin

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)

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

Anthropicanthropic.comin𝕏

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

AI & Machine LearningDeep TechSan Francisco, US

Dario AmodeiDaniela Amodei

Cognitioncognition.comin𝕏

Cognition operates Devin, an autonomous AI software engineer that plans, writes, tests, and ships production code within a team's existing codebase and tools.

AI & Machine LearningDeveloper ToolsEnterprise Software

Cohere Startupcohere.comin𝕏

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

AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSToronto, CA

Aidan Gomez(Co-founder and CEO)Ivan Zhang(Co-founder)Nick Frosst(Co-founder)

Crusoe Energycrusoe.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 ComputingEnergyDenver, US

Cully Cavness(Co-Founder)Chase Lochmiller(Executive Officer, Director)

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(Executive Officer, Director, Promoter)Ion Stoica(Executive Officer, Director, Promoter)Matei Zaharia(Executive Officer, Director, Promoter)David Conte(Executive Officer)Tram Phi(Executive Officer)

BoardPeter Sonsini(Director)in

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, M.D.(CMO)Mark Hyman(CMO)

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

Glean AIglean.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 SoftwareSaaS

Arvind Jain(Founder & CEO)inVishwanath T R(Co-founder and CTO)inTony Gentilcore(Co-founder, Engineering)in

Groqgroq.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 ComputingSemiconductors

Jonathan Ross(Founder & CEO)in

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 SoftwareLegalTech

Winston Weinberg(Founder & CEO)

Lambda Labslambda.aiin𝕏

Lambda provides cloud GPU infrastructure for AI training and inference, offering single-tenant clusters and instances built on NVIDIA GPUs such as GB300 NVL72, HGX B200, and H200.

AI & Machine LearningCloud ComputingData & Infrastructure

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 AltmanElon MuskGreg BrockmanIlya SutskeverWojciech Zaremba

OpenEvidenceopenevidence.com

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

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 & Fitness

Tom Hale(CEO)in

Overtimeovertime.tv𝕏
Replitreplit.comin𝕏

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 EconomyDeveloper ToolsEdTechEnterprise SoftwareSan Francisco, US

Haya Abdalla(Founder)inAmjad Masad(Founder)inHaya Odeh(Co-Founder, Design)Luis Héctor Chávez(CTO)

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 Chief Commercial Officer)inVibhav Altekar(Co-Founder and CTO)inDoug Lambert(Co-Founder and COO)inPatrick DePriest(Chief Financial Officer)inSoo Cho(Chief People Officer)in

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(Founder/CEO)in

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)Ryan Tseng(President, Co-Founder & Chief Strategy Officer)Andrew Reiter(Co-founder)Kingsley Afemikhe(Executive Officer)Gary Steele(Executive Officer, Director)

BoardKeith Dunleavy(Director)

SpaceXspacex.com

Revolutionizing space technology to make life multi-planetary

Starlab Spacestarlab-space.comin𝕏

Starlab Space is developing a commercial space station intended to succeed the International Space Station, along with related orbital habitation platforms and systems for government and commercial customers.

Deep TechHardwareSpace TechHouston, US

Marshall Smith(CEO)Bob EssBrad Henderson(Chief Commercial Officer)Paul Schauer(Chief Procurement Officer)

Stordstord.comin𝕏

Stord provides a unified platform for intelligent supply chain orchestration, helping brands manage, scale, and optimize their logistics operations from a single connected system.

AI & Machine LearningE-commerceLogistics & Supply ChainSaaSAtlanta, US

Sean Henry(Founder & CEO)in

Vedadatavedadata.com

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 develops defense and space systems, including solid-fuel and electric propulsion, energetics (the only U.S. provider of black powder), radiation-hardened space electronics, guidance and navigation systems, and signals intelligence/spectrum dominance software.

Deep TechDefense TechSpace Tech

Worldworld.orgin𝕏

World is an open-source protocol offering "proof of human" digital identity (World ID), a mobile wallet (World App), a crypto token (WLD) and an Ethereum L2 (World Chain) to verify unique humans online across services like dating, ticketing and social platforms.

AI & Machine LearningCrypto & Web3CybersecurityFintechSan Francisco, US

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

Exits · 2

IPOs and acquisitions across the tracked portfolio

CavaNYSE: CAVACerebras SystemsNASDAQ: CBRS

Portfolio news

latest coverage across their companies

Frequently asked questions

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.

Images

Riverbend Capital photo