Company lists · Data verified August 2026
Top 12 Email archiving software companies based in the United States
There are 32 email archiving software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 690 professional contacts across them, including 206 with verified work emails and 205 with mobile numbers. New York is the largest hub.
This list covers email archiving software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.
The 12 largest email archiving software companies based in the United States
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | ZIX | 64 |
| 2 |  Trusted Data Solutions | 46 |
| 3 |  Infobelt, INC | 17 |
| 4 |  Transvault | 20 |
| 5 |  Qstar Technologies | 4 |
| 6 |  Collabware | 18 |
| 7 |  Intradyn | 13 |
| 8 |  17a-4 LLC | 12 |
| 9 |  Mxhero | 3 |
| 10 |  Efusion | 1 |
| 11 |  Reqo, INC | 1 |
| 12 |  Presults | 1 |
Showing 12 of 32 email archiving software companies based in the United States
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Email archiving software companies based in the United States at a glance
As of Aug 28, 2026Companies by employee count
Email archiving software companies by metro
| Metro | Companies |
|---|---|
| Email archiving software companies in New York | 5 |
| Email archiving software companies in Rutherford | 1 |
| Email archiving software companies in Rehoboth Beach | 1 |
| Email archiving software companies in Holt | 1 |
| Email archiving software companies in Glen Allen | 1 |
| Email archiving software companies in Waltham | 1 |
| Email archiving software companies in Boston | 1 |
| Email archiving software companies in Raleigh | 1 |
How this list was built
- Source
- The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
- Inclusion
- Companies whose own business descriptions match “email archiving software companies”, with match quality audited by blind human judging, and headquartered in the United States.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
- Refresh
- Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.
Frequently asked
How many email archiving software companies are there based in the United States?
There are 32 email archiving software companies headquartered in the United States as of August 2026 (RevenueBase).
What is the largest company on this list?
ZIX, headquartered in Dallas, tops this list with the largest team on record.
Which city has the most email archiving software companies?
New York leads with 5 headquartered companies, followed by Rutherford (1) and Rehoboth Beach (1).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 206 verified decision-maker contacts tracked across these 32 companies.
How current is this list?
The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.
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About this data
RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.
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