Claude Code by Anthropic · AI Coding Tools
21 companies with evidence on file — every claim below links to its source.
Used heavily across engineering for internal development work.
Receipts · 2
“Inside Atlassian, the same kind of work runs on Claude Code.” — claude.com, Aug 2026
“used heavily across engineering, and a recent pilot extended it to non-technical teams” — claude.com, Aug 2026
Source last verified Aug 31, 2026 Full Atlassian stack →
Serves as engineers' primary development tooling.
Receipts · 1
“made Claude Code our engineers’ primary development tooling.” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full Caylent stack →
Primary agentic coding tool for the R&D organization.
Receipts · 1
“R&D using Claude Code primarily” — claude.com, Aug 2026
Source last verified Aug 22, 2026 Full Cyera stack →
Default engineering loop, connected to internal systems over MCP.
Receipts · 1
“The default engineering loop runs through Claude Code” — claude.com, Aug 2026
Source last verified Aug 22, 2026 Full Deepgram stack →
Widely used across engineering to write and ship production code.
Receipts · 2
“Claude Code runs across the entire company” — claude.com, Aug 2026
“It's pretty much widespread across the org.” — claude.com, Aug 2026
Source last verified Sep 21, 2026 Full DoorDash stack →
Field development engineers build the insurance Smart Apps with it.
Receipts · 1
“its field development engineers build them with Claude Code.” — claude.com, Sep 2026
Source last verified Sep 7, 2026 Full DXC Technology stack →
Built into every engineering workflow, including internal tool Wall-E.
Receipts · 1
“building Claude Code into every engineering workflow” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full Eve stack →
Spreading through engineering for day-to-day development work.
Receipts · 1
“Claude Code is spreading through engineering.” — claude.com, Aug 2026
Source last verified Sep 21, 2026 Full EvenUp stack →
Accelerates development, connected to internal infrastructure through MCP.
Receipts · 1
“Engineering uses Claude Code for development work” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full HubSpot stack →
Underpins Swarm, the internal orchestrator running overnight autonomous coding sessions.
Receipts · 1
“Runs overnight autonomous coding sessions through Swarm, League's internal orchestration tool built on Claude Code” — claude.com, Aug 2026
Source last verified Aug 22, 2026 Full League stack →
Standard development approach across the enterprise modernization Build Center.
Receipts · 1
“Adopted Claude Code as the standard development approach across the 200-engineer Build Center” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full LG CNS stack →
Fastest-growing agentic coding assistant among Notion's engineers.
Receipts · 1
“Claude Code and Codex Are Outpacing Cursor Among Notion's Engineers” — theinformation.com, Mar 24, 2026
Source last verified Jul 26, 2026 Full Notion stack →
Rolled out across engineering, product, and business teams for coding and automation.
Receipts · 2
“We are using Claude Code and Claude Cowork for problems where our other tools fall short” — claude.com, Sep 2026
“Around 700 people across the group now have access to Claude Code and Claude Cowork” — claude.com, Sep 2026
Source last verified Sep 7, 2026 Full Pictet stack →
Builds infrastructure for crisis support integrations.
Receipts · 1
“uses Claude Code to build infrastructure for crisis support” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full RAINN stack →
Runs the On-call Assistant and engineers' local development work.
Receipts · 1
“On-call Assistant, which has always run on Claude Code” — claude.com, Aug 2026
Source last verified Aug 22, 2026 Full Ramp stack →
Primary tool for writing the code behind Rowan.
Receipts · 1
“The code itself is written with Claude Code, using primarily Opus, with Fable in the mix as well.” — claude.com, Aug 2026
Source last verified Aug 31, 2026 Full Rocket Money stack →
Sanctioned agentic coding tool, also embedded as Roast's coding agent.
Receipts · 2
“There is chat.shopify.io, which we had for years now. Developers have proxy, Copilot, Cursor, Claude code” — techstartups.com, Apr 7, 2025
“Claude Code has transformed how we build internal tools at Shopify” — claude.com, Jul 2026
Source last verified Jul 26, 2026 Full Shopify stack →
Fixes bugs and accelerates engineering workflows.
Receipts · 1
“the team uses Claude Code to fix bugs and power teams to move faster.” — claude.com, Jul 2026
Source last verified Jul 27, 2026 Full Slack stack →
Primary coding agent for its engineering team.
Receipts · 2
“Runs its own engineering fully on Claude Code” — claude.com, Aug 2026
“Our engineering team is all in on Claude Code.” — claude.com, Aug 2026
Source last verified Aug 31, 2026 Full Spellbook stack →
Terminal-first agentic coding across monorepos, with several background sessions.
Receipts · 1
“I run it in a bunch of Max sessions in a terminal” — claude.com, Aug 2026
Source last verified Aug 22, 2026 Full Spotify stack →
Used internally for engineering work, served by the direct Claude API.
Receipts · 1
“the direct Claude API runs alongside it for internal tooling and Claude Code.” — claude.com, Aug 2026
Source last verified Sep 28, 2026 Full Vega Security stack →