Products/Developer Tools/Atom 1.0VC Report ↗

Atom 1.0

GitHub's text editor [Tech]

Developer Tools·by GitHub, Inc.·Launched Jun 2015·0 upvotes·github.com

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REDIRECTED → github.blogsince Jun 16, 2026 · HTTP 200

CohortClass of 2015

What it is

GitHub's text editor [Tech]

HTTP liveness

34 probes since Jun 16

Jun 16Aug 27

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

Jun 16, 2026
First probe — redirected
Redirected offsite

Funding history

4 rounds

Total raised

$511.0M

Latest valuation

$300.0M

Stage

seed

Lead investors: Harry Stebbings · Harry Stebbings · Harry Stebbings · Harry Stebbings · Felicis

Seed

Feb 2026

Felicis, Madrona, M12, Basis Set

Valuation: $300.0M

$60.0M

source

Series A

Aug 2015

investors undisclosed

$251.0M

SEC

Seed

Aug 2012

investors undisclosed

$100.0M

SEC

Private

Jul 2012

Andreessen Horowitz

Valuation: $750.0M

$100.0M

source

Data from SEC EDGAR Form D filings and press coverage. Round labels for SEC filings are inferred from filing sequence and amount.

Moat

None apparent

The competitive landscape for development tools like GitHub's Atom 1.0 is rapidly evolving, with many products adopting similar architectures that diminish any individual advantages. The content suggests that unique technical moats are becoming obsolete as copying capabilities increase and differentiation becomes harder.

webThe architecture of AI products is converging, reducing individual implementations' value. source
webCopying becomes trivial as teams can replicate known patterns quickly. source
webThe question of 'what's your technical moat?' is now considered embarrassing. source
webThere is a growing number of companies successfully building on similar technological foundations without any distinct advantages. source

weak · 0.50 confidence · grounded in 4 sources

Website-grounded · May 2026

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