Directory / Coding & Software Agents

The Letter Company

The world's first coding agent, harness, & IDE for growth engineering.

The Letter Company is a Letter is an autonomous software agent that reads a site and opens its first pull request today, helping humans and agents make website changes. It is positioned for site editing and content/workflow tasks on a website. AI agent company selling to Humans/agents working on site changes.

Coding & Software AgentsAutonomous SWE agentActiveletter.dev ↗
Headcount
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——3m · 6m
X followers
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——7d · 30d
Traffic / month
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Latest round
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Product

Agent type
Letter is an autonomous software agent that reads a site and opens its first pull request today, helping humans and agents make website changes. It is positioned for site editing and content/workflow tasks on a website.
Primary buyer
Humans/agents working on site changes
Integrations
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MCP support
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HQ
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Founded
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LinkedIn
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Funding

Round
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Amount
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Date
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Leads
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Source
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Investors
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Hiring

Employees
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Growth 3m / 6m
— / —
Open roles (sample)
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X mentions this week
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X handle
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// x.com

Top launch posts

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Recent news

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Sources

Last verified: Nov 4, 2026
Funding
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Headcount
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Open jobs
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Traffic
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X metrics
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X handle (homepage-verified)
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Clay enrichment
Clay enrichment 2026-11-04
seed_type
YC directory
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About The Letter Company

What does The Letter Company do?+

The world's first coding agent, harness, & IDE for growth engineering.

How is The Letter Company priced?+

Usage-based, starting at $100 / month.

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Cite this data

The Letter Company profile. Agent Market Map, The GTM Engineering Newsletter. Last verified Nov 4, 2026. https://agentmarketmaps.com/company/the-letter-company