Every new California business filing, every dayLangChain
Harrison Chase, Principal
LangChain is an AI engineering platform based in San Francisco, CA, that provides open source frameworks and tools for building, testing, and deploying reliable AI agents. The company's website lists officers Harrison Chase and Ankush Gola, matching the LLC filing, and its principal address is 501 2nd Street Ste. 120, San Francisco, CA 94107. The site describes its offerings as observing, evaluating, and deploying AI agents, targeting developers.
Filed April 28, 2025 · San Francisco, CA · San Francisco County
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California Secretary of State (bizfile Online) · Entity 3204542 · Retrieved July 26, 2026
About LangChain
LANGCHAIN INC. filed in California on April 28, 2025, as an AI development platform company based in San Francisco. Principals include Harrison Chase, Ankush Gola, and Chetan Puttagunta. Its domain was registered five years before filing, and the modern website matches the filing name and address. No annual report or EIN on file yet. We estimate revenue between $10 million and $50 million and more than 100 employees, operating online only.
- Domain registered five years before the corporate filing
- Three principals listed: Harrison Chase, Ankush Gola, Chetan Puttagunta
- Modern website confirmed to match the filing name and address
- No annual report or EIN on file yet
- We estimate revenue of $10M-$50M and 100+ employees
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 23, 2026.
One of 8 new businesses registered in San Francisco in April 2025, and the only ai development platform business registered there that month.
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Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Officers / Authorized Persons
Frequently Asked Questions
When was LangChain registered?
LangChain was registered as Corp on April 28, 2025 in California.
Where is LangChain located?
LangChain is based in San Francisco, CA, 94107, in San Francisco County.
What type of business is LangChain?
LangChain is classified as a ai development platform business (ai agent frameworks).
Does LangChain have an EIN on file?
No EIN was found on file for LangChain at the time of registration.
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