Last seen 19 Aug 2026
The most recent date Firmable detected Mailbox.org at this company.
Decision makers · 14 on fileSenior people on file at this company. Firmable holds their names, emails and mobiles.
Drupal EntrepreneurMobileEmail
Interim Chief Executive OfficerMobileEmail
Unlock names, emails and mobiles in the trial.
Signals Recent events at this company, such as a leadership change, funding or a new office.
Drupal launched AI Integration - ECA 1.0.0 on Sep 10th '26. · 10 Sep 2026
Drupal highlights Planned Parenthood Direct's healthcare platform built with Evolving Web handling diverse audiences and state-specific content. · 13 Aug 2026
A breakdown of the 2.7K+ companies running Mailbox.org.
Top industries
Professional and business services319
Health and wellness243
Art, sports and recreation223
Information technology and services211
Retail trade176
Education and training118
Consumer services84
Construction and building83
No industry recorded: 863
Company size
1–10113 (57%)
11–5057 (29%)
51–25014 (7%)
251–5007 (4%)
501–1,0003 (2%)
1,001–5,0003 (2%)
5,001–10,0001 (1%)
10,001+1 (1%)
Share of companies with a recorded size, by employees.
No size recorded: 2.5K+
One dataset. Four ways to sell.
Match the deepest technology intelligence against the most comprehensive data on companies and people – such as who is growing, raised capital or changed role – for pinpoint precision on GTM campaigns.
Competitor displacement
Find the accounts running a competitor today and go after them with the right argument.
Complementary tools
Target companies whose stack sits alongside yours and integrates without a fight.
Service partners
Identify implementers and agencies already working in the technologies you support.
Market insights
Map your total addressable market and track aggregated trends such as AI maturity.
Frequently asked questions
About the Mailbox.org data on this page.
How many companies use Mailbox.org?
Firmable holds confirmed Mailbox.org detections for 2,736 distinct companies, 1,882 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Mailbox.org?
institute for advanced study, Drupal and Daedalus are among the most prominent in the current set.
What industries use Mailbox.org?
Professional and business services, health and wellness and art, sports and recreation lead the set, across 19 industries in total.
What size companies use Mailbox.org?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Mailbox.org users based?
The United States, Canada, Australia and Indonesia account for most detections, across 13 countries.
How current is this data?
1,882 companies were confirmed in the last 90 days. Last detection 13 October 2026.
