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Companies using Spamhaus

As of 14 October 2026, Firmable tracks 24 companies across 13 countries running Spamhaus. See who they are, and who to call.

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Companies using Spamhaus

Showing 4 of 24 companies

BlueConic

blueconic.com · Computer software · 51–250 employees

Last seen 19 Aug 2026 The most recent date Firmable detected Spamhaus at this company.

Decision makers · 35 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Director, AI Integration MobileEmail
Engineering Manager MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

BlueConic launched AI agents on Jul 31st '26. · 31 Jul 2026

BlueConic's SVP of Product discusses the true meaning of real-time customer data action. · 7 Oct 2026

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Proximus Global

proximusglobal.com · Online and digital media · 251–500 employees

Last seen 15 Aug 2026 The most recent date Firmable detected Spamhaus at this company.

Decision makers · 31 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Senior Director of Partnerships, Global Mobile
Cloud Communications Sales Account Manager Mobile

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Proximus Global had earnings of $542M on Jul 31st '26. · 31 Jul 2026

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Chartered Institute of Professional Certifications

charteredcertifications.com · Management consulting · 51–250 employees

Last seen 4 Sep 2026 The most recent date Firmable detected Spamhaus at this company.

Decision makers · 21 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Faculty Director MobileEmail
Managing Director MobileEmail

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Charteredcertifications launched CESC Program to Empower Energy Supply Chain Disruption and Risk Management Professionals on Aug 19th '26. · 19 Aug 2026

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Atmail

atmail.com · Computer software · 11–50 employees

Last seen 5 Sep 2026 The most recent date Firmable detected Spamhaus at this company.

Decision makers · 12 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

Head of Customer Support MobileEmail
Chief Technology Officer Mobile

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Signals Recent events at this company, such as a leadership change, funding or a new office.

Moved into Chief Technology Officer · 31 Jul 2026

New Chief Technology Officer appointed · 31 Jul 2026

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Who uses Spamhaus

A breakdown of the 24 companies running Spamhaus.

Top industries

Information technology and services11
Media and telecommunications6
Financial services2
Professional and business services1

No industry recorded: 4

Company size

1–104 (20%)
11–501 (5%)
51–25010 (50%)
251–5001 (5%)
501–1,0003 (15%)
5,001–10,0001 (5%)

Share of companies with a recorded size, by employees.

No size recorded: 4

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Frequently asked questions

About the Spamhaus data on this page.

How many companies use Spamhaus?

Firmable holds confirmed Spamhaus detections for 24 distinct companies, 7 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use Spamhaus?

BlueConic, Proximus Global and Chartered Institute of Professional Certifications are among the most prominent in the current set.

What industries use Spamhaus?

Information technology and services, media and telecommunications and financial services lead the set, across 6 industries in total.

What size companies use Spamhaus?

Adoption concentrates in the 51-250 employee band, across the companies whose size is recorded.

Where are Spamhaus users based?

The United States, Australia, Canada and the Philippines account for most detections, across 13 countries.

How current is this data?

7 companies were confirmed in the last 90 days. Last detection 13 September 2026.

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