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Runtime

Pre-SeedFunding signal
www.runtm.com/B2BSan 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 Information may be incomplete or outdated — verify independently before making decisions.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.

Beta

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 Research may be incomplete, outdated, or incorrect.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.

Investor read

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

Memo snapshot · May 20, 2026, 6:18 PM

Beta

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 Research may be incomplete, outdated, or incorrect.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.

What they do

Runtime — Let your whole team build safely Harnesses and observability for coding agents across the organization.

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Apr 2026). Investors: Y Combinator. (High).

Quick read

  • •Runtime — Let your whole team build safely Harnesses and observability for coding agents across the organization.
  • •Reported angle: Why Persistent Runtimes Matter for AI Development
  • •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 1 GitHub‑tagged, 5 product/news‑style — scoring reflects corpus coverage only.

Stage

Seed (YC)

Evidence summary

Verified facts

  • •Runtime — Let your whole team build safely Harnesses and observability for coding agents across the organization.
  • •Reported angle: Why Persistent Runtimes Matter for AI Development
  • •Indexed activity snapshot: 1 funding‑related row(s), 0 hiring‑related, 1 GitHub‑tagged, 5 product/news‑style — scoring reflects corpus coverage only.

Recent movers

  • •May 11, 2026 · Blog / news — Why Persistent Runtimes Matter for AI Development
  • •May 11, 2026 · Blog / news — Running coding agents without burning down your machine
  • •May 11, 2026 · Blog / news — The State of AI Coding Agents in 2026

+4 more in Recent movement below

  • •May 11, 2026 · Blog / news — Why Persistent Runtimes Matter for AI Development
  • •May 11, 2026 · Blog / news — Running coding agents without burning down your machine
  • •May 11, 2026 · Blog / news — The State of AI Coding Agents in 2026
  • •May 11, 2026 · Blog / news — Blog | Runtime
  • •May 20, 2026 · ycombinator.com — Runtime | Y Combinator
  • •May 20, 2026 · runtm.com — Runtime is part of Y Combinator
  • •May 11, 2026 · GitHub (linked from site) — GitHub - runtm-ai/runtm: Open-source sandboxes where coding agents build and deploy. Spin up isolated environments where Claude Code, Curso…
  • •Y Combinator

Funding

Raised $500K across 1 funding round. Latest: $500K Pre-seed (Apr 2026). Investors: Y Combinator. (High).

Hiring

No hiring/careers evidence indexed (Low).

GitHub

1 GitHub‑linked row(s) (Low).

Product / news

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

Traffic / social

No traffic/social evidence indexed (Low).

Funding & hiring signals

funding_articleMay 20, 2026Confidence: high

Runtime | Y Combinator

YC Spring 2026 batch; sandboxes and observability for org-wide coding agents.

Affected score: yesObserved: May 20, 2026Round: Pre-Seed
raisedpre-seed
ReferenceJan 29, 2026Confidence: high

Upwind raises $250M at $1.5B valuation to continue building ‘runtime’ cloud security

Affected score: yesObserved: Jan 29, 2026Round: series bAmount: $250M
series bled byraises

Open roles (indexed)

No open roles indexed yet.

Failed or blocked links

  • public_page:_pressnot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:_newsnot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:_jobsnot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:_companynot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:_careersnot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:_aboutnot_found
    Last checked Mon, May 11, 04:51 AM

    HTTP 404

  • public_page:customersnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

  • public_page:pressnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

  • public_page:newsnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

  • public_page:jobsnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

  • public_page:careersnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

  • public_page:teamnot_found
    Last checked Sun, May 10, 10:21 PM

    HTTP 404

DealFlow growth score
50.0Moderate public activity signal
7D-31%
30D+0%
Needs Review

The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.

Source health

  • public_market_enrichmentok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_blog_why-persistent-runtimesok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_blog_sandbox-coding-agentsok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_blog_runtime-yc-p26ok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_blog_ai-coding-agents-2026ok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_blogok
    Last checked Mon, May 11, 04:51 AM
  • public_page:_ok
    Last checked Mon, May 11, 04:51 AM
  • public_page:homeok
    Last checked Mon, May 11, 04:51 AM
  • public_page:pricingok
    Last checked Sun, May 10, 10:21 PM
  • public_page:blogok
    Last checked Sun, May 10, 10:21 PM

DealFlow score momentum

507D -3130D +0
100500
2026-05-20: 50

More runs will build history.

The score is an algorithmic estimate based on observed public company-level signals. It may be incomplete, stale, or inaccurate and is not investment, legal, tax, or business advice.

Signal breakdown

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

Public source summary

Total evidence rows
9
Latest evidence
Wed, May 20, 06:18 PM

Source types found

blogcompany_sitefunding_articlegithubpressproduct

Strongest / recent news-style rows

  • Runtime | Y Combinator

    Wed, May 20, 06:18 PM · confidence 88%high quality

    https://www.ycombinator.com/companies/runtime

  • Runtime is part of Y Combinator

    Wed, May 20, 06:18 PM · confidence 85%high quality

    https://www.runtm.com/blog/runtime-yc-p26/

  • Runtime - Let your whole team build safely

    Pricing · Sun, May 10, 10:21 PM · confidence 90%high quality

    https://www.runtm.com/pricing/

Public signal timeline

Newest first · 9 event(s)

1
Wed, May 20, 06:18 PM · press · 85% · verified_publichigh quality

Runtime is part of Y Combinator

Company blog announcing YC batch.

Source ↗
2
Wed, May 20, 06:18 PM · company_site · 85% · verified_publichigh quality

Runtime — Let your whole team build safely

Harnesses and observability for coding agents across the organization.

Source ↗
3
Wed, May 20, 06:18 PM · funding_article · 88% · verified_publichigh quality

Runtime | Y Combinator

YC Spring 2026 batch; sandboxes and observability for org-wide coding agents.

Source ↗
4
Mon, May 11, 04:51 AM · github · 72% · verified_publichigh quality

GitHub - runtm-ai/runtm: Open-source sandboxes where coding agents build and deploy. Spin up isolated environments where Claude Code, Cursor, and other agents code and deploy software. · GitHub

Source: GitHub (linked from site)

GitHub presence linked from official site for Runtime.

Source ↗
5
Mon, May 11, 04:51 AM · blog · 90% · publichigh quality

Why Persistent Runtimes Matter for AI Development

Source: Blog / news

Ephemeral sandboxes are convenient but limiting. Here's why persistent runtimes are the key to unlocking AI-powered development at scale.

Source ↗
6
Mon, May 11, 04:51 AM · blog · 90% · publichigh quality

Running coding agents without burning down your machine

Source: Blog / news

We tried every isolation approach to run background agents so you don’t have to.

Source ↗
7
Mon, May 11, 04:51 AM · blog · 90% · publichigh quality

The State of AI Coding Agents in 2026

Source: Blog / news

A look at how AI coding tools have evolved, where they're headed, and what it means for developers building the next generation of software.

Source ↗
8
Mon, May 11, 04:51 AM · blog · 90% · publichigh quality

Blog | Runtime

Source: Blog / news

Insights, technical deep-dives, and lessons learned from building Runtime. Founder perspectives on AI-powered development.

Source ↗
9
Sun, May 10, 10:21 PM · product · 90% · publichigh quality

Runtime - Let your whole team build safely

Source: Pricing

Simple, transparent pricing for teams of every size. Start free, scale as you grow.

Source ↗

Official / company site

1 row(s)

company_site·Wed, May 20, 06:18 PM·Confidence 85%high qualityverified_public

Runtime — Let your whole team build safely

Harnesses and observability for coding agents across the organization.

https://www.runtm.com/

News

2 row(s)

press·Wed, May 20, 06:18 PM·Confidence 85%high qualityverified_public

Runtime is part of Y Combinator

Company blog announcing YC batch.

https://www.runtm.com/blog/runtime-yc-p26/
product·Sun, May 10, 10:21 PM·Confidence 90%high qualitypublic

Runtime - Let your whole team build safely

Source name: Pricing

Simple, transparent pricing for teams of every size. Start free, scale as you grow.

https://www.runtm.com/pricing/

Funding / news

1 row(s)

funding_article·Wed, May 20, 06:18 PM·Confidence 88%high qualityverified_public

Runtime | Y Combinator

YC Spring 2026 batch; sandboxes and observability for org-wide coding agents.

https://www.ycombinator.com/companies/runtime

GitHub

1 row(s)

github·Mon, May 11, 04:51 AM·Confidence 72%high qualityverified_public

GitHub - runtm-ai/runtm: Open-source sandboxes where coding agents build and deploy. Spin up isolated environments where Claude Code, Cursor, and other agents code and deploy software. · GitHub

Source name: GitHub (linked from site)

GitHub presence linked from official site for Runtime.

https://github.com/runtm-ai/runtm

Blog

4 row(s)

blog·Mon, May 11, 04:51 AM·Confidence 90%high qualitypublic

Why Persistent Runtimes Matter for AI Development

Source name: Blog / news

Ephemeral sandboxes are convenient but limiting. Here's why persistent runtimes are the key to unlocking AI-powered development at scale.

https://www.runtm.com/blog/why-persistent-runtimes/
blog·Mon, May 11, 04:51 AM·Confidence 90%high qualitypublic

Running coding agents without burning down your machine

Source name: Blog / news

We tried every isolation approach to run background agents so you don’t have to.

https://www.runtm.com/blog/sandbox-coding-agents/
blog·Mon, May 11, 04:51 AM·Confidence 90%high qualitypublic

The State of AI Coding Agents in 2026

Source name: Blog / news

A look at how AI coding tools have evolved, where they're headed, and what it means for developers building the next generation of software.

https://www.runtm.com/blog/ai-coding-agents-2026/
blog·Mon, May 11, 04:51 AM·Confidence 90%high qualitypublic

Blog | Runtime

Source name: Blog / news

Insights, technical deep-dives, and lessons learned from building Runtime. Founder perspectives on AI-powered development.

https://www.runtm.com/blog/

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