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UPDATED 2026.06.07
rl-list.com · Vendors · Collinear
#19

Collinear

Commercial
medium confidence
www.collinear.ai ↗ · Status: active confirmed · Founded 2023

Collinear AI operates a 'Simulation Lab' (SimLab) that builds sandboxed, stateful RL environments simulating enterprise users, tools (Jira, ServiceNow, Shopify, EMR, airline/hotel systems) and multi-step workflows, producing training-ready trajectories, reward signals and evals for agentic models. It also offers synthetic post-training data and LLM-judge evaluation, positioning itself around 'environment-as-a-service' for enterprise long-horizon agents.

Key facts
Headquarters
Mountain View / Sunnyvale, California, USAreported cite
Headcount band
11-50reported cite
Total raised
unknown
Last round
unknown
SOC 2
unknown
What they sell
environmentsconfirmed cite
Open source
noestimated
Deployment
managed-hosted / API (environment endpoints)reported cite

Scale & velocity

Current headcount
~16-23 (About page lists 16 team members; Tracxn ~23 as of 2026-04-30; Crunchbase 1-10; LinkedIn band 11-50; prospeo 11-20)reported cite
Headcount growth
unknown
Open roles
10confirmed cite
Other locations
unknown
Distributed / remote
unknown cite

Research depth

Has researchers
yesconfirmed cite
Researcher count
unknown
Backgrounds
Founder/CEO Nazneen Rajani: ex-Robustness Research Lead at Hugging Face, ex-Research Scientist at Salesforce, PhD University of Texas at Austin (MIT TR Innovators Under 35), Team described as researchers/engineers from Hugging Face, Salesforce, Google, Amazon, Stanford (per company About page)reported cite
Papers / benchmarks
unknown

Capital

Total raised
unknown
Last round
unknown
Investors
Engineering Capital, Firestreak Ventures, 112 Capital (11.2 Capital)reported cite
Valuation
unknown
Revenue signals
unknown

Security & compliance

SOC 2
unknown
Other certifications
unknown
Security page
unknown cite

Product

What they sell
environmentsconfirmed cite
Open source
noestimated
License
unknown
Deployment model
managed-hosted / API (environment endpoints)reported cite
Maturity
unknown
Notable customers
Amazon self-claimed ServiceNow self-claimed Kore.ai self-claimed Matillion self-claimed MasterClass self-claimed Zoho self-claimed HUMAIN self-claimed Commonwealth Bank self-claimed LaHaus self-claimed ParseAI self-claimed cite

Buyer analysis

Best fit: Buyers training or evaluating enterprise agents that need realistic, stateful long-horizon simulated workflows (IT support, customer service, finance, HR) with verifiable rewards.

How we verified this

Re-verified the high-risk fields against the company's own pages (homepage, about-us, careers, case-studies) plus Tracxn, Crunchbase snippets, PitchBook snippet, prospeo, and MIT Tech Review. This is the correct company: Collinear AI (Nazneen Rajani, ex-Hugging Face), whose SimLab builds sandboxed enterprise long-horizon RL environments, matches the directory note. Funding fields confirmed correct as 'unknown' (no disclosed amount/round/valuation anywhere; the only valuation figure is an explicit estimate). Investor list trimmed to the three corroborated on the About page. Headcount draft overreached ('~28'); replaced with a sourced ~16-23 range and flagged that Crunchbase lists 1-10. Founding year resolved to 2023 with stronger sourcing. All customers are self-claimed (vendor site only); removed the unverified 'Amazon (AGI Labs)' frontier-lab tie. SOC2/security remain unknown (no trust page; /security 404). Overall confidence: medium.

Related vendors

Mechanize CommercialAfterQuery CommercialDeeptune CommercialBespoke Labs Commercial

Sources

  1. www.collinear.ai/ · 2026-06-07, Official homepage: SimLab products, customer logos, claimed metrics (100+ domains, 500B+ tokens, 40%+ improvement)
  2. www.collinear.ai/about-us · 2026-06-07, Team list (16 members), investors (Engineering Capital, Firestreak, 112 Capital), advisors James Zou & Ritesh Agarwal
  3. www.collinear.ai/careers · 2026-06-07, 10 open roles incl. Head of Research, Research Scientist/Engineer; relocation bonus mention
  4. blog.collinear.ai/p/rl-env-as-a-service · 2026-06-07, Environment-as-a-service positioning; API endpoints; domains (product dev, SWE, computer use, web)
  5. www.linkedin.com/company/collinearai · 2026-06-07, Public page: 11-50 employees (~28), founded 2024, HQ Mountain View / Sunnyvale CA, Software Development
  6. tracxn.com/d/companies/collinearai/__afhJh0xW8gZpWYbw5rCoeqG-KD4fTP3wJr3 · 2026-06-07, Founded 2023, ~18-23 employees (Jan-Apr 2026), lists as unfunded, conflicts with investor lists
  7. pitchbook.com/profiles/company/550057-87 · 2026-06-07, Investors: Khasm Labs, 11.2 Capital, Engineering Capital, Firestreak Ventures, ISV Startup Springboard (via search snippet)
  8. www.linkedin.com/in/nazneenrajani · 2026-06-07, Founder/CEO background: ex-Hugging Face Research Lead, ex-Salesforce, PhD UT Austin
  9. www.crunchbase.com/organization/collinear-ai · 2026-06-07, Crunchbase profile exists (HTTP 403, not directly accessible)
Last updated 2026-06-07 · Every quantitative field carries a source and a confidence tag. Fields we could not source publicly are marked unknown, never estimated. See the methodology.