Investors / United States / Flex Capital
Flex Capital
Venture capital · San Francisco, CA, United States · North America
Flex Capital is a seed-stage venture capital firm based in San Francisco, founded in 2017 and run by founders who have built and sold their own companies. It writes first checks of $500K to $2M and manages more than $225 million.
Invests inAI & Machine Learning
In its own wordsseedfounder-ledgeneralistearly-stagesan francisco
Your fit with Flex Capital
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsFlex Capital lists 28 checked portfolio companies on its own site and is named in 16 funding rounds. Its most frequent entry is Seed, 60% of the companies with a known first round. Its largest themes are AI & Machine Learning (29%), Cybersecurity (13%) and Enterprise Software (11%). 92% of its companies are based in United States. It invests most often alongside CRV, Y Combinator and Liquid 2 Ventures.
Counts come from funding rounds that name Flex Capital, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 60% |
| Series A | 20% |
| Series B | 7% |
| Growth | 13% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 8 | 0 |
| '26 | 8 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 65th | 28 companies |
| Recent activity | 95th | 10 rounds in 12 months |
| Early stage | 76th | 60% of entries at pre-seed or seed |
| Evidence | 70th | 7% of companies confirmed by a round |
| Sector focus | 48th | 29% in its largest sector |
| Reach | 58th | 3 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 29% | 18% |
| Cybersecurity | 13% | 4% |
| Enterprise Software | 11% | 8% |
| Healthcare & Biotech | 9% | 15% |
| Fintech | 9% | 12% |
| Legal & Compliance | 7% | 2% |
| E-commerce & Marketplaces | 7% | 6% |
| Education | 2% | 7% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| CRV | 6 |
| Y Combinator | 6 |
| Liquid 2 Ventures | 5 |
| Accel | 4 |
| Andreessen Horowitz | 4 |
| SV Angel | 4 |
| Coatue | 3 |
| Homebrew | 3 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers28100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherCompare Flex Capital head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Flex Capital| Date | Company | Stage |
|---|---|---|
| 12 Aug 2026 | Series C+ | |
| 18 May 2026 | Seed | |
| 17 Apr 2026 | Series C+ | |
| 13 Apr 2026 | Series A | |
| 23 Feb 2026 | Seed | |
| 28 Jan 2026 | Seed | |
| 8 Jan 2026 | Series A | |
| 4 Dec 2025 | Seed |
Round details for Flex Capital
Amounts, full round histories and every co-investor in Flex Capital's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
28 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Airbyte moves data from various sources to destinations with its automated data movement platform | Enterprise SoftwareAI & Machine Learning | Portfolio page | ||
| AngelList is a portfolio of businesses that move capital through private markets. | FintechFintech | Portfolio page | ||
| AppLovin provides advertising solutions for businesses to reach mobile game players. | Media & EntertainmentE-commerce & Marketplaces | Portfolio page | ||
| BEAMRaiL provides an intelligent platform for law enforcement agencies to manage knowledge, documents, and work | Legal & ComplianceCybersecurity | Jan 2026Seed | Funding round | |
| Bolt creates custom apps and websites using AI, with no coding required. | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Portfolio page | ||||
| Citra provides hardware, software, and infrastructure for space domain awareness. | AI & Machine LearningAI & Machine Learning | Apr 2026Series A | Funding round | |
| CodeRabbit provides AI-driven code review and governance tools for software development teams | AI & Machine LearningCybersecurity | Aug 2026Series C+ | Page + round | |
| Datavant securely connects, protects, and activates health data across the healthcare ecosystem through a data collaboration platform. | Healthcare & Biotech | Portfolio page | ||
| The company provides configure, price, and quote software for complex pricing strategies. | Enterprise SoftwareE-commerce & Marketplaces | Aug 2025Seed | Funding round | |
| Portfolio page | ||||
| Giant builds worlds where kids imagine, create, play, and learn. | EducationEnterprise Software | Feb 2026Seed | Funding round | |
| GitLaw provides an AI agent for contracts that can draft, review, and negotiate legal contracts | Legal & ComplianceAI & Machine Learning | Nov 2025Seed | Funding round | |
| Juniper Square provides a fund operating system for private markets investment managers | FintechAI & Machine Learning | Portfolio page | ||
| The company develops an app that takes notes during doctor visits and turns them into clear summaries and next steps for patients and their care circle. | Healthcare & Biotech | May 2026Seed | Funding round | |
| Mercury provides online business banking services for startups, small businesses, and scaling companies. | FintechE-commerce & Marketplaces | Portfolio page | ||
| Multifactor allows users to securely share online accounts with people and AI agents without sharing passwords. | CybersecurityAI & Machine Learning | Dec 2025Seed | Funding round | |
| Portfolio page | ||||
| Portfolio page | ||||
| Soxton AI provides legal support services to businesses using a combination of AI and human lawyers. | Legal & Compliance | Dec 2025Seed | Funding round |
About this data
site last read 8 Nov 2026- Site
- flexcapital.com
- Last read
- 8 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 6 Jun 2025
- Companies checked
- 28
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Flex Capital's profile as data
Pull Flex Capital's portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
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$ curl -H "X-API-Key: YOUR_KEY" \
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