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#123 by ARRSan Francisco, USlabelbox.com ↗

Labelbox

Labelbox is a data-centric AI company based in San Francisco, founded in 2018. It provides a comprehensive software platform designed for data labeling, curation, and workflow automation. The platform includes tools…

ARR
$100M
as of Sep 2026
Employees
~300
as of Oct 2026
Valuation
$1B
10× ARR
ARR / employee
$333K
revenue efficiency
About Labelbox

Labelbox is a data-centric AI company based in San Francisco, founded in 2018. It provides a comprehensive software platform designed for data labeling, curation, and workflow automation. The platform includes tools for annotation, quality control, and performance analytics, making it suitable for training data generation at scale. Labelbox also offers on-demand expert labeling services through its Boost service, which utilizes a community of skilled annotators, and an expert marketplace called Alignerr Connect. The company serves leading AI labs and enterprises across various industries, including automotive, healthcare, and retail. Labelbox has established partnerships with over 90% of top U.S. AI labs and has expanded its offerings to include solutions for model evaluation and large language models. With a focus on integrating into machine learning pipelines, Labelbox supports both private cloud and on-premise data sources, helping customers streamline their model development processes.

Investors · 11

LeadSoftBank Vision Fund 2Corporate83 partners on file
BoardAndreessen HorowitzVenture capital· Peter Levine (General Partner at Andreessen Horowitz)290 partners on file
BoardB CapitalVenture capital· Rashmi Gopinath (General Partner at B Capital)43 partners on file
BoardGradient VenturesVenture capital· Anna Patterson (Founder and Managing Partner at Gradient Ventures)3 partners on file
InvestorAndreessen HorowitzVenture capital290 partners on file
InvestorARK Investment ManagementVenture capital15 partners on file
InvestorB CapitalVenture capital43 partners on file
InvestorDatabricksCorporate13 partners on file
InvestorFirst Round CapitalVenture capital31 partners on file
InvestorGradient VenturesVenture capital3 partners on file
InvestorIn-Q-TelSovereign fund7 partners on file
InvestorKleiner PerkinsVenture capital20 partners on file
InvestorSnowpoint VenturesVenture capital
InvestorTitan CapitalVenture capital
505 partner contacts across these firms, emails and LinkedIn are in Investor Contacts for paid members.
Labelbox logo
LabelboxSeries E (equity + credit facility)Oct 14
Infinitum (lead), Wipro Ventures, Snowpoint Ventures, Tau Ventures, B Capital, Andreessen Horowitz · AI training data / RL environments
$100M
val. $1.25B

News, deals & research

Latest in AI
DealLabelbox raises more than $100M Series E at $1.25B pre-money, mixing equity and creditOct 14
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