/
Log inGet free API keyAccount
Menu
InvestorsCompaniesFit CheckerDocsPricingGet free API key

Companies / OpenBuilder

OpenBuilder

Singapore, Singapore

OpenBuilder is Singapore's open community for people building with the latest in open-source AI

AI & Machine LearningEducation

OpenBuilder, based in Singapore, Singapore, has 2 investors on file, among them focal and Y Combinator. Its latest round on record is Seed, 9 Apr 2026, of 2 rounds. Its site was last checked 13 Nov 2026: site answers.

openbuilder.dev

Funding

2 rounds on record
Latest roundSeed9 Apr 2026
Since that round7 monthsno later round on record
Time between rounds7 monthson average, over 2 rounds
Investors in its rounds22 with a VCinfo profile
Apr 2026SeedLed by focal
Sept 2025SeedLed by Y Combinator

Round sizes and total raised are on Fundup AI, our sister product for funding data.

Investors

2 investors on file
InvestorEvidenceType
focalPortfolio pageVenture capital
Y CombinatorPortfolio pageAccelerator

More from focal

41 companies on its checked portfolio

Its portfolio leans to AI & Machine Learning (28%), Healthcare & Biotech (18%), Fintech (12%).

Coworker AICoworker develops and provides enterprise AI agents for various tasksFlamingoFlamingo provides AI-native IT automation for managed service provider…GeminusGeminus links AI to the physical world, integrating data, physics, and…MaxedMaxed provides an AI-native platform for CPA firms to manage various t…OmniOmni provides an AI analytics platform that helps turn data into a sou…

See focal's full profile · Who invests alongside it

More from Y Combinator

5,167 companies on its checked portfolio

Its portfolio leans to AI & Machine Learning (26%), Fintech (13%), Healthcare & Biotech (11%).

10xThe company provides an AI-powered patient recall system for dental pr…1849 BioThe company helps mines extract more copper from low-grade ores using …AIVideoAIVideo generates videos using artificial intelligence.ARC PrizeThe company advances open-source artificial general intelligence resea…AbacumAbacum provides a business planning platform that connects actuals, as…

See Y Combinator's full profile · Who invests alongside it

A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data

Free account · no card

Get OpenBuilder and its investors as data

Look up any company's investors, or any investor's full portfolio, through one API key or MCP. A free account also opens Ask AI searches and alerts when focal adds a company.

Work email, sign-in link by email. Already have an account? Log in
Your API keyRead the docs
  • Ask AI5 plain-English investor searches a day
  • Full listsEvery portfolio row and two-firm overlap
  • API and MCP100 REST or MCP calls a month, one key
  • AlertsFollow 5 investors for portfolio and fund changes
VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/companies/openbuilder.dev/investors

# also
GET /v1/companies/openbuilder.dev
GET /v1/companies/openbuilder.dev/news
The same data as an MCP server for Claude, Cursor and other AI tools. Set up MCP · Docs · Pricing