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Refresh

Pre-SeedFunding signal
www.refresh.devB2BSan Francisco, CA, USA
Market index

Market data is refreshed once per day from public sources. Information may be incomplete or outdated — verify independently before making decisions. This is not investment advice.

Investor read

Evidence-bound summary — expand sections for movement, risks, and signals.

Memo snapshot · May 20, 2026, 6:19 PM

Worth a meetingEvidence-bound analyst verdict
  • •Funding: Raised $500K across 1 funding round. Latest: $500K Pre-seed (Apr 2025). Investors: Y Combinator.
  • •Named backers in indexed sources: Y Combinator.
  • •Hiring: 4 hiring‑related row(s); role‑spam risk if mostly generic boards
  • •Product/news: 1 product/news‑styled row(s); headline risk without filings

DealFlow OS uses public web data and automated enrichment. Research may be incomplete, outdated, or incorrect. Verify important information before making investment or outreach decisions.

TL;DR

Seed (YC)

Refresh RL environments for coding and computer-use training.

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Apr 2025). Investors: Y Combinator. (High).

Quick read

  • •Refresh RL environments for coding and computer-use training.
  • •Reported angle: Open Roles | Refresh

Key signals

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Apr 2025). Investors: Y Combinator. (High).

Hiring

4 hiring‑related row(s); role‑spam risk if mostly generic boards (High).

Product / news

1 product/news‑styled row(s); headline risk without filings (High).

Evidence summary

Verified facts

  • •Refresh RL environments for coding and computer-use training.
  • •Reported angle: Open Roles | Refresh

Recent movers

  • •May 20, 2026 · ycombinator.com — Refresh | Y Combinator
  • •May 20, 2026 · refresh.dev — Open Roles | Refresh
  • •May 11, 2026 · Careers — Research Engineer, Benchmarking | Open Roles | Refresh

+2 more in Recent movement below

  • •May 20, 2026 · ycombinator.com — Refresh | Y Combinator
  • •May 20, 2026 · refresh.dev — Open Roles | Refresh
  • •May 11, 2026 · Careers — Research Engineer, Benchmarking | Open Roles | Refresh
  • •May 11, 2026 · Careers — GTM Engineer | Open Roles | Refresh
  • •May 11, 2026 · Careers — Ex-Founder | Open Roles | Refresh
  • •Y Combinator

Suggested next steps

  • ▸Open a founder conversation this month; validate traction claims against the indexed evidence.
  • ▸Add to the active watchlist so new signals trigger alerts.

Funding & hiring signals

funding_articleConfidence: low

Refresh | Y Combinator

Spring 2025 batch; RL training gyms for computer use and software engineering.

Affected score: noObserved: May 20, 2026

Weak funding evidence: mention does not include a parsed raise amount/round and may refer to non-funding context.

Open roles (indexed)

No open roles indexed yet.

Public index
54Activity 80/100Elevated public activity signal
7D+6 (+12.5%)
30D+18 (+50.0%)
High Confidence

The index price and activity score are algorithmic estimates based on observed public company-level signals. They may be incomplete, stale, or inaccurate and are not investment, legal, tax, or business advice.

Source health

  • public_page:blogok
    Last checked Thu, Jul 2, 03:31 PM
  • public_page:careersok
    Last checked Thu, Jul 2, 03:31 PM
  • public_page:aboutok
    Last checked Thu, Jul 2, 03:31 PM
  • public_page:homeok
    Last checked Thu, Jul 2, 03:31 PM
  • githubok
    Last checked Mon, Jun 29, 03:46 AM
  • newsok
    Last checked Mon, Jun 29, 03:46 AM
  • socialok
    Last checked Mon, Jun 29, 03:46 AM

    Refresh:reddit_credentials_not_configured

  • hiringok
    Last checked Mon, Jun 29, 03:46 AM
  • fundingok
    Last checked Mon, Jun 29, 03:46 AM

    discovery:google:google_cse_quota_exhausted

  • public_market_enrichmentok
    Last checked Mon, May 11, 04:53 AM
  • public_page:_careers_research-engineer-benchmarkingok
    Last checked Mon, May 11, 04:53 AM
  • public_page:_careers_gtm-engineerok
    Last checked Mon, May 11, 04:53 AM
  • public_page:_careers_ex-founderok
    Last checked Mon, May 11, 04:53 AM
  • public_page:_careersok
    Last checked Mon, May 11, 04:53 AM
  • public_page:_ok
    Last checked Mon, May 11, 04:53 AM

Signal timeline

28 dated public signals · newest on the right

Funding
Hiring
Code
Press
Social
Company
Other
Mar 14, 2025Nov 16, 2025Jul 20, 2026
Funding (1)Hiring (8)Code (5)Press (4)Social (1)Company (6)Other (3)

Signal breakdown

Latest momentum signal per category. Expand a card to inspect raw payloads.

Public source summary

Total evidence rows
28
Latest evidence
Thu, Jul 2, 03:30 PM

Source types found

about_pageblogcareers_pagecompany_sitefunding_articlegithubhiringnewsofficial_siteotherpresssocial

Strongest / recent news-style rows

  • About | Refresh

    About page · Thu, Jul 2, 03:30 PM · confidence 90%high quality

  • Refresh | Y Combinator

    Wed, May 20, 06:19 PM · confidence 88%high quality

  • Open Roles | Refresh

    Wed, May 20, 06:19 PM · confidence 85%high quality

Public signal timeline

Newest first · 28 event(s)

1
Thu, Jul 2, 03:30 PM · blog · 90% · publichigh qualityBlog | Refresh

Source: Blog

Benchmarks, evaluations, and datasets for training frontier AI models. Original research on simulation engines for coding, healthcare, and document automation.

Source ↗
2
Thu, Jul 2, 03:30 PM · careers_page · 90% · publichigh qualityOpen Roles | Refresh

Source: Careers page

Refresh is hiring ex-founders, GTM engineers, and research engineers building the simulation engines frontier labs train on.

Source ↗
3
Thu, Jul 2, 03:30 PM · about_page · 90% · publichigh qualityAbout | Refresh

Source: About page

Refresh builds realistic simulation environments and evals to measure and push the frontier of model capabilities. We are a team of five former founders and CTOs working with the leading frontier labs.

Source ↗
4
Thu, Jul 2, 03:30 PM · official_site · 90% · publichigh qualityRefresh

Source: Homepage

Refresh builds simulation engines for coding and computer use, for frontier labs to train the next generation of virtual software engineering collaborators.

Source ↗
5
Mon, Jun 29, 03:46 AM · hiring · 68% · publichigh qualityResearch Engineer, BenchmarkingSan FranciscoFull-timeBuild the benchmarks frontier labs use to measure real…

Source: jobs_board

Source ↗
6
Mon, Jun 29, 03:46 AM · hiring · 68% · publichigh qualityGTM EngineerSan FranciscoFull-timeOwn the technical surface between Refresh and the frontier labs we sell t…

Source: jobs_board

Source ↗
7
Mon, Jun 29, 03:46 AM · hiring · 68% · publichigh qualityCreate your own roleSan FranciscoFull-timeWe back confident, self-directed people who see where they can mo…

Source: jobs_board

Source ↗
8
Mon, Jun 29, 03:46 AM · hiring · 68% · publichigh qualityEx-FounderSan FranciscoFull-timeOwn end-to-end delivery of the strategic projects behind our computer-use a…

Source: jobs_board

Source ↗
9
Mon, Jun 29, 03:45 AM · official_site · 75% · publichigh qualityOpen Roles | Refresh

Source: official_site

Open Roles | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Open Roles Building the environments to enable the next generation of capabilities in LLMs. Building the environments to enable the next generation of capabilities in LLMs. Engin…

Source ↗
10
Mon, Jun 29, 03:45 AM · official_site · 75% · publichigh qualityRefresh

Source: official_site

Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Environments for Environments for the next capabilities the next capabilities Refresh builds simulated worlds for coding and computer use, with verifiable rewards that move models forward. Re…

Source ↗
11
Mon, Jun 29, 03:45 AM · official_site · 75% · publichigh qualityAbout | Refresh

Source: official_site

About | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch About We are a team of 5 former founders and CTOs pushing the state of model capabilities for the leading frontier labs. We have built and shipped real products to real customers, and…

Source ↗
12
Mon, Jun 29, 03:45 AM · official_site · 75% · publichigh qualityBlog | Refresh

Source: official_site

Blog | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Blog Benchmarks, Evals, Benchmarks, Evals, and and Datasets Datasets Research on AI capabilities in real-world workflows. We build rigorous evaluations and training environments for fr…

Source ↗
13
Wed, May 20, 06:19 PM · company_site · 85% · verified_publichigh qualityRefresh

RL environments for coding and computer-use training.

Source ↗
14
Wed, May 20, 06:19 PM · press · 85% · verified_publichigh qualityOpen Roles | Refresh

Hiring research engineers and GTM.

Source ↗
15
Wed, May 20, 06:19 PM · funding_article · 88% · verified_publichigh qualityRefresh | Y Combinator

Spring 2025 batch; RL training gyms for computer use and software engineering.

Source ↗
16
Mon, May 11, 04:53 AM · careers_page · 90% · publichigh qualityResearch Engineer, Benchmarking | Open Roles | Refresh

Source: Careers

Build the benchmarks frontier labs use to measure real-world coding and computer-use capability. Translate expert workflows into rigorous, verifiable evaluations, run them against frontier models, and publish numbers that hold up under a…

Source ↗
17
Mon, May 11, 04:53 AM · careers_page · 90% · publichigh qualityGTM Engineer | Open Roles | Refresh

Source: Careers

Own the technical surface between Refresh and the frontier labs we sell to. Run evals on prospect models, stand up environments during pilots, write the demos that close deals, and feed what you learn back into product. For people who li…

Source ↗
18
Mon, May 11, 04:53 AM · careers_page · 90% · publichigh qualityEx-Founder | Open Roles | Refresh

Source: Careers

Own end-to-end delivery of the strategic projects behind our computer-use and coding data builds. You scope the work with frontier-lab customers, keep it shipping on timelines that matter, and stay hands-on across both the customer conve…

Source ↗
19
Mon, Jun 29, 03:46 AM · github · 55% · publicmedium quality@rspack/plugin-react-refresh

Source: npm_registry

React refresh plugin for Rspack

Source ↗
20
Mon, Jun 29, 03:46 AM · github · 55% · publicmedium quality@types/react-refresh

Source: npm_registry

TypeScript definitions for react-refresh

Source ↗
21
Mon, Jun 29, 03:46 AM · github · 55% · publicmedium qualitytimeout-refresh

Source: npm_registry

Efficiently refresh a timer

Source ↗
22
Mon, Jun 29, 03:46 AM · github · 55% · publicmedium qualityreact-refresh-typescript

Source: npm_registry

React Refresh transformer for TypeScript

Source ↗
23
Mon, Jun 29, 03:46 AM · github · 55% · publicmedium qualityeslint-plugin-react-refresh

Source: npm_registry

Validate that your components can safely be updated with Fast Refresh

Source ↗
24
Mon, Jun 29, 03:46 AM · news · 70% · publicmedium qualityRefresh Lancaster is facing termination

Source: gdelt_doc_api

wgal.com

Source ↗
25
Mon, Jun 29, 03:46 AM · social · 48% · publicmedium qualityApple Has Given Up on the Vision Pro After M5 Refresh Flop

Source: hackernews

Source ↗
26
Mon, Jun 29, 03:45 AM · other · 50% · publicmedium qualityRefresh

Source: wikipedia

Source ↗
27
Mon, Jun 29, 03:45 AM · other · 50% · publicmedium qualityRefresh rate

Source: wikipedia

Source ↗
28
Wed, May 20, 06:19 PM · press · 85% · verified_publiclow qualityRefresh on GitHub

Open-source org for RL environment work.

Source ↗

Official / company site

6 row(s)

The company's own site — the authoritative description of what they sell and to whom. Marketing-controlled, so treat claims as positioning rather than verified traction.

official_site·Thu, Jul 2, 03:30 PM·Confidence 90%high qualitypublic
Refresh

Refresh builds simulation engines for coding and computer use, for frontier labs to train the next generation of virtual software engineering collaborators.

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗
official_site·Mon, Jun 29, 03:45 AM·Confidence 75%high qualitypublic
Open Roles | Refresh

Open Roles | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Open Roles Building the environments to enable the next generation of capabilities in LLMs. Building the environments to enable the next generation of capabilities in LLMs. Engin…

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗
official_site·Mon, Jun 29, 03:45 AM·Confidence 75%high qualitypublic
Refresh

Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Environments for Environments for the next capabilities the next capabilities Refresh builds simulated worlds for coding and computer use, with verifiable rewards that move models forward. Re…

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗
official_site·Mon, Jun 29, 03:45 AM·Confidence 75%high qualitypublic
About | Refresh

About | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch About We are a team of 5 former founders and CTOs pushing the state of model capabilities for the leading frontier labs. We have built and shipped real products to real customers, and…

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗
official_site·Mon, Jun 29, 03:45 AM·Confidence 75%high qualitypublic
Blog | Refresh

Blog | Refresh Refresh Blog Careers Get in Touch Blog Careers Get in Touch Blog Benchmarks, Evals, Benchmarks, Evals, and and Datasets Datasets Research on AI capabilities in real-world workflows. We build rigorous evaluations and training environments for fr…

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗
company_site·Wed, May 20, 06:19 PM·Confidence 85%high qualityverified_public
Refresh

RL environments for coding and computer-use training.

Why it matters: Primary source — the company's own positioning; best read for what they sell and to whom, not for traction claims.

Open source ↗

News

5 row(s)

Third-party press coverage. Independent reporting corroborates company claims; repeated coverage across outlets is a momentum signal.

about_page·Thu, Jul 2, 03:30 PM·Confidence 90%high qualitypublic
About | Refresh

Refresh builds realistic simulation environments and evals to measure and push the frontier of model capabilities. We are a team of five former founders and CTOs working with the leading frontier labs.

Why it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.

Open source ↗
press·Wed, May 20, 06:19 PM·Confidence 85%high qualityverified_public
Open Roles | Refresh

Hiring research engineers and GTM.

Why it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.

Open source ↗
news·Mon, Jun 29, 03:46 AM·Confidence 70%medium qualitypublic
Refresh Lancaster is facing termination

wgal.com

Why it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.

Open source ↗
other·Mon, Jun 29, 03:45 AM·Confidence 50%medium qualitypublic
Refresh

Why it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.

Open source ↗
other·Mon, Jun 29, 03:45 AM·Confidence 50%medium qualitypublic
Refresh rate

Why it matters: Independent coverage — third-party corroboration of company claims; recurring coverage indicates rising visibility.

Open source ↗

Funding / news

1 row(s)

Funding announcements and investor-database records. The strongest public signal of capitalization: round, amount, and syndicate quality when disclosed.

funding_article·Wed, May 20, 06:19 PM·Confidence 88%high qualityverified_public
Refresh | Y Combinator

Spring 2025 batch; RL training gyms for computer use and software engineering.

Why it matters: Funding signal — Pre-Seed per this source; verify against the linked original before relying on it.

Open source ↗

Hiring

8 row(s)

Open roles and careers pages. Active hiring implies runway to spend and shows where the company is investing (engineering vs GTM vs ops).

careers_page·Thu, Jul 2, 03:30 PM·Confidence 90%high qualitypublic
Open Roles | Refresh

Refresh is hiring ex-founders, GTM engineers, and research engineers building the simulation engines frontier labs train on.

Why it matters: Hiring signal — open roles imply runway to spend and show where the company is investing.

Open source ↗
hiring·Mon, Jun 29, 03:46 AM·Confidence 68%high qualitypublic
Research Engineer, BenchmarkingSan FranciscoFull-timeBuild the benchmarks frontier labs use to measure real…

Why it matters: Hiring signal — 4 open role(s) indexed; hiring implies runway and shows growth priorities.

Open source ↗
hiring·Mon, Jun 29, 03:46 AM·Confidence 68%high qualitypublic
GTM EngineerSan FranciscoFull-timeOwn the technical surface between Refresh and the frontier labs we sell t…

Why it matters: Hiring signal — 4 open role(s) indexed; hiring implies runway and shows growth priorities.

Open source ↗
hiring·Mon, Jun 29, 03:46 AM·Confidence 68%high qualitypublic
Create your own roleSan FranciscoFull-timeWe back confident, self-directed people who see where they can mo…

Why it matters: Hiring signal — 4 open role(s) indexed; hiring implies runway and shows growth priorities.

Open source ↗
hiring·Mon, Jun 29, 03:46 AM·Confidence 68%high qualitypublic
Ex-FounderSan FranciscoFull-timeOwn end-to-end delivery of the strategic projects behind our computer-use a…

Why it matters: Hiring signal — 4 open role(s) indexed; hiring implies runway and shows growth priorities.

Open source ↗
careers_page·Mon, May 11, 04:53 AM·Confidence 90%high qualitypublic
Research Engineer, Benchmarking | Open Roles | Refresh

Build the benchmarks frontier labs use to measure real-world coding and computer-use capability. Translate expert workflows into rigorous, verifiable evaluations, run them against frontier models, and publish numbers that hold up under a…

Why it matters: Hiring signal — open roles imply runway to spend and show where the company is investing.

Open source ↗
careers_page·Mon, May 11, 04:53 AM·Confidence 90%high qualitypublic
GTM Engineer | Open Roles | Refresh

Own the technical surface between Refresh and the frontier labs we sell to. Run evals on prospect models, stand up environments during pilots, write the demos that close deals, and feed what you learn back into product. For people who li…

Why it matters: Hiring signal — open roles imply runway to spend and show where the company is investing.

Open source ↗
careers_page·Mon, May 11, 04:53 AM·Confidence 90%high qualitypublic
Ex-Founder | Open Roles | Refresh

Own end-to-end delivery of the strategic projects behind our computer-use and coding data builds. You scope the work with frontier-lab customers, keep it shipping on timelines that matter, and stay hands-on across both the customer conve…

Why it matters: Hiring signal — open roles imply runway to spend and show where the company is investing.

Open source ↗

GitHub

6 row(s)

Public engineering activity. Sustained commits, releases, and stars indicate real product development and, for dev tools, developer adoption.

github·Mon, Jun 29, 03:46 AM·Confidence 55%medium qualitypublic
@rspack/plugin-react-refresh

React refresh plugin for Rspack

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗
github·Mon, Jun 29, 03:46 AM·Confidence 55%medium qualitypublic
@types/react-refresh

TypeScript definitions for react-refresh

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗
github·Mon, Jun 29, 03:46 AM·Confidence 55%medium qualitypublic
timeout-refresh

Efficiently refresh a timer

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗
github·Mon, Jun 29, 03:46 AM·Confidence 55%medium qualitypublic
react-refresh-typescript

React Refresh transformer for TypeScript

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗
github·Mon, Jun 29, 03:46 AM·Confidence 55%medium qualitypublic
eslint-plugin-react-refresh

Validate that your components can safely be updated with Fast Refresh

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗
press·Wed, May 20, 06:19 PM·Confidence 85%low qualityverified_public
Refresh on GitHub

Open-source org for RL environment work.

Why it matters: Engineering signal — public repo activity evidences active development and possible developer adoption.

Open source ↗

Social

1 row(s)

Social presence and mentions. A soft signal — useful for gauging attention and launch reception, not a substitute for verified traction.

social·Mon, Jun 29, 03:46 AM·Confidence 48%medium qualitypublic
Apple Has Given Up on the Vision Pro After M5 Refresh Flop

Why it matters: Attention signal — social mention or presence; soft signal of market interest.

Open source ↗

Blog

1 row(s)

Company blog and newsletters. Shipping cadence and technical depth of posts hint at product velocity and team quality.

blog·Thu, Jul 2, 03:30 PM·Confidence 90%high qualitypublic
Blog | Refresh

Benchmarks, evaluations, and datasets for training frontier AI models. Original research on simulation engines for coding, healthcare, and document automation.

Why it matters: Company publishing — post cadence and depth hint at product velocity.

Open source ↗

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