Patronus AI A Verified

RL environment company · Multi-Domain

Domains
Multi-Domain Coding
On X
@PatronusAI ↗
Funding
$70M raised · rounds and investors
Tier
A why
Snapshot

Open environment ↗patronus.ai

What Patronus AI does

Patronus AI builds RL tasks with expert reference solutions and graders, plus ready-built and custom simulated environments for training AI agents in software, computer use and knowledge work.

Leads with
Several domains (a generalist)
Based in
San Francisco, USA
Team
51-100

What Patronus AI sells

Read from Patronus AI's own website, checked October 12, 2026: the line that puts it in each category.

RL environments

Data

Domains Patronus AI covers

Patronus AI competitors and alternatives

The companies that sell the most of the same things in the same domains, and what they share with Patronus AI.

Every RL environment company on the landscape map →

Tier A

A

Scaling: 51 to 250 people, or $20M+ raised.

How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.

  • team 51-100
  • raised $70M
  • investors: Greenfield Partners, Lightspeed Venture Partners, Notable Capital
  • in curated RL directories (3 pts)

On X · unclear, low buzz, from 12 posts about Patronus AI in the last month

Small chatter centers on Patronus publishing RL training results showing its GitHub and Unreal tasks improved an open model, plus a Disruptors60 listing; little independent validation.

@VarunGangal ↗ · @ShivaniJain1010 ↗ · @VishalPallagani ↗

How we got to tier A
  1. Adoption: team 51-100; raised $70M; investors: Greenfield Partners, Lightspeed Venture Partners, Notable Capital. Tier A.
  2. On X: unclear, low buzz. “Small chatter centers on Patronus publishing RL training results showing its GitHub and Unreal tasks improved an open model, plus a Disruptors60 listing; little independent validation.” No move.
  3. In curated RL directories: 3 points, a floor of none.
  4. Confirmed: a line from its own site or paper places it.

A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.

Patronus AI funding

Raised
$70Mstated total
Latest round
Series B $50M2026-06 · led by Greenfield Partners

Backed byGreenfield PartnersLightspeed Venture PartnersNotable CapitalDatadogFactorial CapitalSamsung

Rounds

  • Series B · $50M · 2026-06 · led by Greenfield Partners
    On Thursday, the company announced a $50 million Series B round led by Greenfield Partners
    1. Read: “On Thursday, the company announced a $50 million Series B round led by Greenfield Partners”
    2. Found word for word on a page found by search: techcrunch.com/2026/06/25/patronus-ai-lands-50m-to-build-digital-worlds-that-stress-test-ai-agents
    3. The quote states the amount and who led it
    4. Also named by 4 other pages read
    techcrunch.com/2026/06/25/patronus-ai-lands-50m-to-build-digital-world…
  • Series A · $17M · 2024 · led by Notable Capital
    In 2024, Patronus AI raised $17M in Series A funding led by Notable Capital
    1. Read: “In 2024, Patronus AI raised $17M in Series A funding led by Notable Capital”
    2. Found word for word on its own site: patronus.ai/blog/announcing-our-17-million-series-a
    3. The quote states the amount and who led it
    4. No other page or directory names it yet
    patronus.ai/blog/announcing-our-17-million-series-a
  • Seed · $3M · 2023-09 · led by Lightspeed Venture Partners
    In September 2023, Patronus AI launched out of stealth with $3M in seed funding led by Lightspeed Venture Partners
    1. Read: “In September 2023, Patronus AI launched out of stealth with $3M in seed funding led by Lightspeed Venture Partners”
    2. Found word for word on its own site: patronus.ai/blog/patronus-launch
    3. The quote states the amount and who led it
    4. No other page or directory names it yet
    patronus.ai/blog/patronus-launch

Funds 4

  • Greenfield Partners led a round
    Today, we’re excited to announce our $50M Series B led by Greenfield Partners, with participation from Lightspeed Venture Partners, Notable Capital, Datadog, Samsung, Gokul Rajaram, Factorial Capital
    1. Read: “Today, we’re excited to announce our $50M Series B led by Greenfield Partners, with participation from Lightspeed Venture Partners, Notable Capital, Datadog, Samsung, Gokul Rajaram, Factorial Capital”
    2. Found word for word on its own site: patronus.ai/announcements/announcing-our-50m-series-b
    3. Also named by 1 other page read
    patronus.ai/announcements/announcing-our-50m-series-b
  • Lightspeed Venture Partners led a round

    Named in the round quoted above.

  • Notable Capital led a round

    Named in the round quoted above.

  • Factorial Capital
    with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram
    1. Read: “with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram”
    2. Found word for word on its own site: patronus.ai/blog/patronus-launch
    3. No other page or directory names it yet
    patronus.ai/blog/patronus-launch

Angels 2

  • Amjad Masad
    with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram
    1. Read: “with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram”
    2. Found word for word on its own site: patronus.ai/blog/patronus-launch
    3. No other page or directory names it yet
    patronus.ai/blog/patronus-launch
  • Gokul Rajaram
    with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram
    1. Read: “with participation from Factorial Capital and angel investors including Amjad Masad and Gokul Rajaram”
    2. Found word for word on its own site: patronus.ai/blog/patronus-launch
    3. No other page or directory names it yet
    patronus.ai/blog/patronus-launch

Corporate investors 2

  • Datadog
    with participation from Lightspeed Venture Partners, Datadog, Factorial Capital, and angel investors
    1. Read: “with participation from Lightspeed Venture Partners, Datadog, Factorial Capital, and angel investors”
    2. Found word for word on its own site: patronus.ai/blog/announcing-our-17-million-series-a
    3. Also named by 1 other page read
    patronus.ai/blog/announcing-our-17-million-series-a
  • Samsung
    with participation from Notable Capital, Lightspeed, Datadog, and Samsung
    1. Read: “with participation from Notable Capital, Lightspeed, Datadog, and Samsung”
    2. Found word for word on a page found by search: techcrunch.com/2026/06/25/patronus-ai-lands-50m-to-build-digital-worlds-that-stress-test-ai-agents
    3. Also named by 1 other page read
    techcrunch.com/2026/06/25/patronus-ai-lands-50m-to-build-digital-world…

Every figure is quoted from its own site, its accelerator or a funding announcement; a round's amount and lead appear only when its quote states them. Startup databases are never used as evidence. Checked 2026-10-11. How funding is checked.

Where Patronus AI sits

Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map

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Latest from Patronus AI on X

@PatronusAI ↗

More Multi-Domain RL environments

Multi-Domain AI benchmarks

Next: browse all environments. Entry from the RL Research daily scrape of public sources, 2026-11-05 snapshot.