A breakdown of the 132K+ companies running Rackspace Email.
Top industries
Art, sports and recreation17K+
Professional and business services12K+
Health and wellness10K+
Construction and building10K+
Hospitality and travel7.5K+
Real estate and home services6.9K+
Retail trade6K+
Industrial and manufacturing5.8K+
No industry recorded: 23K+
Company size
1–1021,547 (46%)
11–5013,929 (30%)
51–2509,283 (20%)
251–5001,412 (3%)
501–1,000216 (<1%)
1,001–5,000463 (1%)
5,001–10,00043 (<1%)
10,001+67 (<1%)
Share of companies with a recorded size, by employees.
No size recorded: 85K+
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Frequently asked questions
About the Rackspace Email data on this page.
How many companies use Rackspace Email?
Firmable holds confirmed Rackspace Email detections for 132,566 distinct companies, 120,406 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use Rackspace Email?
Ministry Brands, United Franchise Group and Mortgage Bankers Association are among the most prominent in the current set.
What industries use Rackspace Email?
Art, sports and recreation, professional and business services and health and wellness lead the set, across 19 industries in total.
What size companies use Rackspace Email?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are Rackspace Email users based?
The United States, Canada, Australia and New Zealand account for most detections, across 13 countries.
How current is this data?
120,406 companies were confirmed in the last 90 days. Last detection 13 October 2026.
