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Exclaimer is a provider of an email signature management platform for cloud services such as Microsoft 365 and Google Workspace.

exclaimer.comLinkedInUpdated Aug 10, 2026
Annual revenue
$23.5M
Dec 2020
Total raised
$173.4M
2 rounds
Employees
309
Dec 2024
Customers
40K

Exclaimer revenue

Exclaimer's annual revenue was $23.5M in December 2020 (source not recorded), the most recent figure on record.

$0
$10M
$20M
$23.5M
2020
ReportedOne figure per year; a reported figure wins over an estimate
As ofRevenueSource
Dec 2020$23.5M–

– source not recorded

Exclaimer funding rounds & investors

Exclaimer has raised $173.4M across two rounds since 2016. The latest was a $141M funding round in December 2020.

DateRoundRaised
Dec 2020Funding round$141M
Dec 2016Funding round$32.4M
Total raised$173.4M

Exclaimer CEO, founders & employees

Marco Costa founded Exclaimer in 2001 and runs it as CEO. Exclaimer had 309 employees (December 2024, LinkedIn), up from 259 a year earlier.

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148
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309
20202021202220232024
ReportedOne figure per year; a reported figure wins over an estimate
All 7 headcount readings, with sources
As ofEmployeesSource
Dec 2024309LinkedIn
Oct 2024259LinkedIn
Sep 2023259–
2023225–
2022211–
Aug 2021148–
Dec 2020101–

Exclaimer FAQ

What is Exclaimer's revenue?

Exclaimer's annual revenue was $23.5M in December 2020 (source not recorded). No later figure is on record.

How much funding has Exclaimer raised?

Exclaimer has raised $173.4M across two funding rounds. The latest was a $141M funding round in December 2020.

How many employees does Exclaimer have?

Exclaimer had 309 employees in December 2024, according to LinkedIn.

Who is the CEO of Exclaimer?

Marco Costa is the CEO of Exclaimer and founded the company in 2001.

Who founded Exclaimer?

Marco Costa founded Exclaimer in 2001.

How this page is sourced

2 from public sources. Founder figures link to the second they were said; public figures name their source; estimates are marked EST. and say whose they are. Not financial advice.

Updated Aug 10, 2026Data disclaimerReport a correctionClaim this profileRun Exclaimer? Join the podcast