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Step Function Ventures

Venture capital

Boston · 2 people tracked

Also known as Step Function · Step Function VC

Find your way into Step Function Ventures

911 people in our graph share verified history with the Step Function Ventures team — schools, employers, funds. One of them is your warm intro.

Steve Bennetunlockedknows Bill Lehmann · together at Rollbar (overlapped)
knows the team · via Fossa
×2knows the team · via LOLapps
×7knows the team · via Bee Partners
knows the team · via Minted
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Fund manager profile

Step Function Ventures is a venture fund manager based in Boston. SEC filings show 2 venture funds on record, most recently Step Function Ventures Fund I LP ($20M offering) filed June 2023.

Source: SEC EDGAR Form D filings. Firm website data not yet available.

HQ
Boston, US
Founded
2021
Last 12 months
2 investments
Tracked investments
4

Team · 2 people

from public directories
Bill Lehmann· Investorin

What they invest in

from 4 of 4 portfolio companies

AI & Machine Learning ×3Cybersecurity ×2Data & Infrastructure ×2Developer Tools ×2Enterprise Software ×2SaaS ×2Cloud Computing ×1

HQs:United Kingdom×1United States×1

Investments · 4 tracked

founders shown can be your intro path
Geordie AIgeordie.ai

Geordie is a security platform for governing autonomous AI agents, providing continuous discovery, posture management, behavioral observability, risk intelligence, and remediation across cloud, code, endpoint, and SaaS environments.

AI & Machine LearningCybersecurityEnterprise Software

Hanah-Marie Darley(Co-founder)inBenji Weber(Chief Technology Officer)inHenry Comfort(Chief Executive Officer)inHanah Darley(Chief AI Officer)inJosh Kriss(Chief Operating Officer)in

Co-investorsBalderton CapitalTen ElevenGeneral Catalyst

Nebulocknebulock.ioinJun 2026

Nebulock builds an AI-driven threat hunting platform that correlates threat intelligence with organizational context across endpoint, identity, cloud, network, and SaaS, focusing on attacker behavior and TTPs rather than indicators of compromise.

AI & Machine LearningCybersecuritySaaS

Damien Lewke(Founder)in

Co-investorsAviso VenturesBain Capital VenturesDecibel PartnersFirstMark CapitalIn-Q-TelZetta Venture Partners

Unkeyunkey.com𝕏Apr 2026

Unkey is an API management platform for developers, designed to handle API workflows including integration and scaling.

Cloud ComputingData & InfrastructureDeveloper ToolsSaaS

James Perkins(Co-founder)inAndreas Thomas(Co-founder)in

Co-investorsUncork CapitalESSENCE VCDeep AcreHomebrewPreston-Werner VenturesEssence Venture Capital+1 more

Zep AIgetzep.comin𝕏Seed

Zep provides infrastructure that manages and governs agent memory at scale across multiple data sources including chat, documents, events, and business data.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Daniel Chalef(Founder)in

Co-investorsFirst Star VenturesY CombinatorEngineering Capital

Portfolio news

latest coverage across their companies

Frequently asked questions

Where is Step Function Ventures located?
Step Function Ventures is headquartered in Boston, US.

Co-investors · 4

SV Angel

SV Angel is a San Francisco-based firm that invests long-term in founders, supporting them with advice, introductions, and network access at key business inflection points.

$150K – $20M
True Ventures

True Ventures is an early-stage venture capital firm that has backed founders since 2005, partnering at the earliest moments of company building.

$500K – $3M
Uncorrelated Ventures

Uncorrelated Ventures invests in infrastructure software

MMC Ventures

MMC is a European venture capital firm that has partnered with over 100 early-stage founders over more than two decades to help grow their startups.

$635K – $13M

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

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