LangChain

LangChain is a language model application development library that develops a language model framework to power applications that integrate with other sources of data and interact with their environment.

Latest funding

$300M Series B+ · November 12, 2026

Led by CapitalG · Source: digitaltoday.co.kr

Total raised: $450M across 3 sourced rounds

All 4 rounds ↓

Website: langchain.com.

X: @LangChain · 272,349 followers.

LinkedIn: langchain.

Categories: AI coding and devtools AI agents Foundation models and research.

Sectors: Agentic AI, Analytics, Artificial Intelligence (AI), Database, Developer APIs.

Stage: Series B+.

Based in: San Francisco, United States.

Founded: 2023.

Total raised: $450M in 3 sourced rounds.

Last round: Nov 12, 2026 · 3 days ago.

Headcount: 251–500 employees.

On Recent Funding since: Sep 29, 2026.

Signals

X account@LangChain · created Nov 5, 2022 (4 years old) · 272,349 followers

Website registeredDec 3, 2019 (6 years old)

About LangChain

Its platform also offers support for various model types, prompt management, memory, indexing, chains, and agents to help developers create generative artificial intelligence like personal assistants, question-answering bots, chatbots, and data querying.

TIMELINE · MONEY RAISED

LangChain | 150 days from X account to first raise on record

@LangChain·Raised $450M in 3 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Nov 12, 2026	Series B+	$300M	CCapitalG	digitaltoday.co.kr
Oct 20, 2025	Series B+	$125M	IIVP	blog.langchain.com
Feb 15, 2024	Series A	$25M	SSequoia	ainave.com
Apr 4, 2023	Seed	undisclosed	—	fundraisingfox.com

Timeline

November 5, 2022
X account created
December 3, 2019
Website created

Founders and team

AG
Ankush Gola co-founder

@ankush_gola11 · source: langchain.com
HC
Harrison Chase Founder

LinkedIn
BA
Bagatur Askaryan founding engineer
EH
Emily Hawkins Analytics Engineering
LC
Logan Cochran Analytics Engineer
MP
Marco Perini Deployed Engineer
RV
Rahul Verma Deployed Engineer at LangChain

Investors

Companies like LangChain

CCharacter.ai$150M Series A · Mar 2023
AActiveloopSeries A · Sep 2024
KKilnSeries A
GGlean$150M Series B+ · Jun 2025
TTwelveLabs$100M Series B+ · Jul 2026
LLangbase$550K Seed · Sep 2024

Other companies backed by CapitalG

BBedrock Robotics$600M Series B+ · Oct 2026
CClay$115M Series B+ · Sep 2026
LLovable$400M Series B+ · Aug 2026
HHadrian$1.37B Series B+ · Aug 2026
BBase Power$1B Series B+ · Aug 2026
KK2 Space$500M Series B+ · Jul 2026

CapitalG portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/langchain (get a free API key).