switched a key vendor
The whole population of companies · watched continuously
A live record of when every company on the internet started, and what changed since.
We watch the whole population of companies, continuously. When a company appears, adopts a vendor, drops one, starts hiring, or hardens its posture — we have the date. Before it shows up anywhere else.
Debut
We see a company the day it appears.
38% of domains born yesterday reach their first commercial signal within 30 days
Movement
We see what changed while you slept.
- northwind.com switched a key vendor 3 days ago
- lumen-labs.io new company detected yesterday
- harborpay.co hardened its trust posture 6 days ago
- sparrow-hr.com set up business communications 2 days ago
14 Mar 16 Mar 09 Jun 14 Aug today
Who reads FirstSeen
Vendors
Know who switched — before your reps hear it from a lost deal.
Category feeds of who adopted a competitor, who left one, and where install-base share is moving.
For competitive intel → InvestorsFind companies before they announce, and size a thesis honestly.
Filtered entrant feeds and cohort data — where the absence of a result is as trustworthy as its presence.
For research + diligence → RevOpsFire the moment an account crosses a threshold worth acting on.
Watched lists and webhook events into your CRM — latency and integration, not breadth.
For sales triggers →Also used by agencies and B2B service businesses to spot newly formed companies in their market — see how.
287.4M companies in the Census
3.9M movements · last 7 days
Every day refreshed
Jan 2024 archive start
The atomic unit
What a Movement looks like
One detected change on one domain, dated. Added in green, removed in red — every screenshot reads at a glance.
new company detected
hardened its trust posture
set up business communications
launched an online store
started hiring in earnest
The moat
Why nobody else has the date
01
Population, not sample
We cover the entire population of registered companies — not a crawl of the well-linked web. If it exists, it's in the Census.
02
Change, not state
A list of who uses what is commodity. Knowing the day a vendor was added or dropped is not — and it's what we record.
03
Day zero, not post-scale
Others need a company to already exist at scale before they can see it. We don't — we catch the debut, on day zero.
25 Movement types
Subscribe to a Signal
Each Signal is a saved query over the Census. Six of twenty-five:
The Census · Research
The Communications Brief — Q2 2026
Which vendors won and lost share among companies founded in the last 18 months — measured on the day each switch happened, across 287M companies.
Read the report → CSV included · free
Query it like data — or hand it to an agent
REST API and an MCP server
Movements are objects. Pull them into a warehouse, or let an agent ask the question directly. MCP is metered on queries, not seats.
API + MCP docs →# MCP — ask in natural language
tool: firstseen.movements
prompt: "which of my accounts switched to
a competitor this quarter?"
# REST — same data, typed
GET /v1/movements?type=switched_vendor
&to=competitor&since=2026-04-01