A breakdown of the 589 companies running L4 Email.
Top industries
Professional and business services64
Financial services24
Art, sports and recreation19
Construction and building19
Hospitality and travel19
Education and training18
Transport16
Health and wellness14
No industry recorded: 334
Company size
1–10113 (71%)
11–5029 (18%)
51–25014 (9%)
1,001–5,0002 (1%)
5,001–10,0001 (1%)
10,001+1 (1%)
Share of companies with a recorded size, by employees.
No size recorded: 429
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Frequently asked questions
About the L4 Email data on this page.
How many companies use L4 Email?
Firmable holds confirmed L4 Email detections for 589 distinct companies, 588 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.
Which companies use L4 Email?
Consumercreditauditors, Trueartist360 and Npkengagement are among the most prominent in the current set.
What industries use L4 Email?
Professional and business services, financial services and art, sports and recreation lead the set, across 19 industries in total.
What size companies use L4 Email?
Adoption concentrates in the 1-10 employee band, across the companies whose size is recorded.
Where are L4 Email users based?
The United States, Australia, Canada and Singapore account for most detections, across 11 countries.
How current is this data?
588 companies were confirmed in the last 90 days. Last detection 13 October 2026.
