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Bespoke Labs

Builds company-scale simulations with real codebases and microservices

Coding and SWETool useReasoning

Bespoke Labs sells RL environments and infrastructure for training long-horizon agents, including company-scale simulations built on real codebases and microservices, plus GEPA-based agent optimization and custom post-training. Co-founder Alex Dimakis co-authored Terminal-Bench 2.0 and GEPA, and the team released the open Curator tool and OpenThoughts reasoning datasets. Wing VC led its Series A.

Best for: Coding and data-engineering environments from a team with open research output

$40M seed and Series A (Jul 2026)

  • ✓ Bespoke builds
  • – Platform or hub
  • ✓ Open source
  • – Publishes prices
Visit Bespoke Labs

Facts checked November 9, 2026 against the sources listed below. Bespoke Labs does not pay to appear here.

1 Legal nameBespoke Labs
2 HeadquartersMountain View, CA
3 Founded2024
4 TeamAbout 40–48
5 DeliveryBespoke builds, Open source
6 ExclusivityNot disclosed
7 Customers and partnersSays it is trusted by Fortune 500 enterprises and frontier labs; names none on its homepage.
8 Published pricesNot disclosed

Where we recommend them

Worth knowing before you sign

  • Seed amount conflicts between its SEC Form D ($7.25M) and company figures ($8.25M)
  • Frontier-lab and Fortune 500 customers are unnamed
  • Benchmark results are vendor-reported; no SOC 2 or security page found

Go to Bespoke Labs's site

Sources

  1. Bespoke Labs homepage
  2. $40M funding announcement
  3. SiliconANGLE: $40M raise
  4. Wing VC: investment post
  5. SEC Form D filing
  6. rl-list profile
  7. pavlovslist directory

Work at Bespoke Labs? Send corrections with a source to editors@toprlenvironments.com. We fix verified errors within five business days.

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