rl-list.com
UPDATED 2026.06.07
rl-list.com · Vendors · Modal

Modal

Infrastructure
high confidence
modal.com ↗ · Status: active confirmed · Founded 2021

Modal (Modal Labs) is a New York-based, Python-native serverless cloud purpose-built for AI/ML workloads, providing on-demand GPU/CPU compute, fast-booting sandboxed containers, inference, fine-tuning, and code execution. It is execution infrastructure rather than an RL-environment vendor, but is used to run reinforcement-learning training and large fleets of parallel sandboxed environments for AI labs.

Key facts
Headquarters
New York, NY, USAconfirmed cite
Headcount band
51-200confirmed cite
Total raised
$466Mreported cite
Last round
Series C, $355M, closed ~2026-05-21confirmed cite
SOC 2
Type IIconfirmed cite
What they sell
infraconfirmed cite
Open source
noconfirmed cite
Deployment
managed-hosted (serverless cloud); Python/JS/TS/Go SDKs and APIconfirmed cite

Scale & velocity

Current headcount
120+ team members (official Series C blog, May 2026); ~153 employees per LinkedIn/Tracxn snippet (as of April 2026)reported cite
Headcount growth
unknown
Open roles
30+ open roles across NYC, SF, Stockholmreported cite
Other locations
San Francisco, CA, USA, Stockholm, Swedenconfirmed cite
Distributed / remote
yesestimated cite

Research depth

Has researchers
noestimated cite
Researcher count
unknown
Backgrounds
CEO Erik Bernhardsson: ex-Spotify (music recommendations), ex-CTO Better.com, creator of open-source Annoy and Luigi, CTO Akshat Bubna: ex-Scale AI engineer, MITreported cite
Papers / benchmarks
unknown

Capital

Total raised
~$466M total disclosedreported cite
Last round
Series C, $355M, closed ~2026-05-21confirmed cite
Investors
General Catalyst (Series C co-lead), Redpoint Ventures (Series C co-lead; earlier Series A lead), Lux Capital (earlier round lead), Amplify Partners, Menlo Ventures, Bain Capital Ventures, Accelconfirmed cite
Valuation
$4.65B post-money (Series C, May 2026); first tranche priced at $2.5B, second at $4.65B; up from $1.1B (Series B)confirmed cite
Revenue signals
~$300M annualized revenue run rate (May 2026), grown ~5x since September; ~$50M ARR reported Feb 2026reported cite

Security & compliance

SOC 2
Type IIconfirmed cite
Other certifications
HIPAA: supports HIPAA-compliant workloads via BAA on Enterprise plan (no formal HIPAA certification exists); PCI handled via Stripe (Level 1)confirmed cite
Security page
https://trust.modal.com (security portal); https://modal.com/docs/guide/securityconfirmed cite

Product

What they sell
infraconfirmed cite
Open source
noconfirmed cite
License
Client SDKs open source (Python client Apache-2.0, JS/TS/Go libmodal MIT, examples MIT); platform itself proprietaryconfirmed cite
Deployment model
managed-hosted (serverless cloud); Python/JS/TS/Go SDKs and APIconfirmed cite
Maturity
GAconfirmed cite
Notable customers
Cognition (Devin) self-claimed Applied Compute self-claimed Physical Intelligence self-claimed Suno self-claimed Ramp self-claimed DoorDash self-claimed Decagon self-claimed Chai Discovery self-claimed Reducto self-claimed ⚑Meta (Code World Models RL sandboxes) self-claimed cite

Buyer analysis

Best fit: Buyers needing serverless, autoscaling compute to run untrusted code, RL training loops, and thousands of parallel sandboxed agent/coding environments without managing infrastructure.

How we verified this

Re-verified the highest-risk claims against multiple independent third-party sources. Confirmed this is the correct company: Modal / Modal Labs, the NY-based Python-native serverless cloud for AI workloads (matches directory note). Funding is strongly corroborated: Series C $355M at $4.65B post-money closed ~2026-05-21 (DCD, SiliconANGLE, FinSMEs, Tech Startups, TechCrunch), two tranches $2.5B then $4.65B, up from $1.1B Series B; leads General Catalyst and Redpoint with Menlo/Bain/Accel new, all kept confirmed. Total raised (~$466M) downgraded to 'reported' as it rests mainly on the vendor page plus aggregators. Founded 2021 confirmed (Jan 2021). Headcount: official 120+, LinkedIn/Tracxn ~153 as of April 2026, comfortably in 51-200 band; current_headcount kept 'reported', band source corrected to LinkedIn. SOC 2 Type II confirmed via modal.com/docs/guide/security and trust.modal.com portal; HIPAA correctly characterized as BAA-supported, no formal cert. Customers: all treated as self-claimed (vendor logos); trimmed three names not re-confirmable, added Reducto from the official page. Meta/Code World Models RL-sandbox usage is additionally referenced in third-party CWM coverage, justifying the frontier_lab_tie flag, but the relationship remains self-claimed. Dropped 'computer use environments' from focus_areas as unsupported by the controlled-vocabulary fit. Removed unverifiable street addresses and an unverified open-roles breakdown. Overall confidence remains high.

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Sources

  1. modal.com/ · 2026-06-07, Official homepage, serverless AI infrastructure positioning, GPU autoscaling, inference, fine-tuning
  2. modal.com/company · 2026-06-07, Official company page, offices (NYC HQ, SF, Stockholm), founders, 30+ open roles, $466M+ raised
  3. modal.com/blog/modal-series-c · 2026-06-07, Official Series C announcement, $355M at $4.65B, ~$300M ARR, 120+ team, customers, RL infra, 1B sandboxes
  4. modal.com/blog/announcing-our-series-b · 2026-06-07, Official Series B, $87M, $1.1B valuation, Lux Capital lead, $111M total, founders, customers
  5. modal.com/blog/soc2type2 · 2026-06-07, Official, SOC 2 Type II compliance
  6. modal.com/blog/hipaa · 2026-06-07, Official, HIPAA-compliant workloads via BAA on Enterprise plan
  7. modal.com/docs/guide/security · 2026-06-07, Official docs, SOC 2 Type 2, HIPAA, trust.modal.com portal, security@modal.com
  8. techcrunch.com/2026/02/11/ai-inference-startup-modal-labs-in-talks-to-ra · 2026-06-07, TechCrunch, founded 2021, ~$50M ARR (Feb 2026), $2.5B talks, CEO background
  9. www.datacenterdynamics.com/en/news/modal-labs-secures-funding/ · 2026-06-07, DCD, $355M Series C, $4.65B, two tranches ($2.5B/$4.65B), ~$300M ARR up from ~$60M
  10. siliconangle.com/2026/05/21/serverless-ai-infrastructure-startup-modal-l · 2026-06-07, SiliconANGLE, Series C close date ~2026-05-21
  11. techstartups.com/2026/05/21/modal-labs-raises-355m-quadrupling-valuation · 2026-06-07, Tech Startups, Series C details, investors, customers
  12. github.com/modal-labs · 2026-06-07, GitHub org, client SDKs only (Python Apache-2.0, JS/TS/Go libmodal MIT, examples MIT)
  13. github.com/modal-labs/modal-client · 2026-06-07, Modal client SDK repo
  14. erikbern.com/about.html · 2026-06-07, CEO Erik Bernhardsson bio, Spotify, Better.com, Annoy, Luigi
  15. www.linkedin.com/company/modal-labs · 2026-06-07, LinkedIn public snippet, ~153 employees (April 2026), NYC, founded ~2021
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.