Company lists · Data refreshed September 2026
Top 25 Mailroom services worldwide
RevenueBase identified 2,401 mailroom services worldwide as of September 2026 and tracks 23,465 professional contacts across them, including 4,441 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers mailroom services worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for mailroom services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest mailroom services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 766 contacts → | ||||
Indirect evidence “The Whistl Group is the UK’s leading logistics specialist, empowering brands and retailers through expert-led solutions that connect the entire customer journey.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 664 contacts → | ||||
Indirect evidence “Sandd is a Dutch postal company that focuses on the delivery of addressed bulk mail, such as direct mail and subscription magazines.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 417 contacts → | ||||
Indirect evidence “The Millennium Group, a Minority and Woman Owned Business Enterprise, is a global provider of outsourced Document Processing and Workplace Services including Mail, Ship/Receive…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 409 contacts → | ||||
Indirect evidence “Restore Information Management is the leading UK owned provider of information management services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 330 contacts → | ||||
Indirect evidence “Posta Plus was established in 2005, and it specializes in logistics, courier, and mailing services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 319 contacts → | ||||
Indirect evidence “PostalAnnex+ is one of six packaging and shipping brands franchised by Annex Brands, Inc, headquartered in San Diego, California.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 274 contacts → | ||||
Indirect evidence “Data-Mail is one the nation’s largest full-service, data processing, printing, and direct mail lettershop production facilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 239 contacts → | ||||
Indirect evidence “Somos una empresa con más de 30 años de trayectoria como correo en el mercado postal nacional.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 221 contacts → | ||||
Indirect evidence “As part of the ShipStation Global portfolio, Stamps.com gives businesses and individuals everything they need to mail and ship with confidence.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 220 contacts → | ||||
Indirect evidence “ATHOME est spécialisée dans l’externalisation des envois de courrier électronique et papier pour les Syndics depuis 40 ans.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 215 contacts → | ||||
Indirect evidence “Cycloon is de sociale bezorgexpert.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 210 contacts → | ||||
Indirect evidence “Smarter Operations for the Modern Workplace The way the workplace works is changing fast.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 201 contacts → | ||||
Indirect evidence “MaltaPost is Malta's leading postal services company, being the sole licensed Universal Service Provider of postal services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 188 contacts → | ||||
Indirect evidence “Established in 1986, Air Business is an award-winning market leader in global mail, fulfilment, distribution, subscription management and e-commerce.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 146 contacts → | ||||
Indirect evidence “Goin’ Postal is a chain of retail shipping & receiving stores with locations spanning the nation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 135 contacts → | ||||
Indirect evidence “As the Mid-South’s office technology integrator, MCC Solutions brings AV, business security, document solutions, mailing solutions, and telecom together under one coordinated…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 134 contacts → | ||||
Strong evidence “FP Mailing Solutions revolutionized mailroom technology with the introduction of the first digital meter.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 126 contacts → | ||||
Indirect evidence “The ups store#4808,ups shipping,packing services,mailbox services,freight services,copying,finishing & printing services,office supplies,notary services,packaging & moving…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 120 contacts → | ||||
Indirect evidence “Over the past 50+ years, ICS Corporation has grown from a small print and copy facility in Philadelphia, PA into a company that elevates and supports some of today’s largest…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 120 contacts → | ||||
Indirect evidence “iPostal1 is the leading digital mailbox service offering customers a real street address in any of our more than 4,250 mailbox locations internationally for receipt of their…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 111 contacts → | ||||
Indirect evidence “Die PIN AG – leistungsstark, CO2-neutral & menschenfokussiert Seit bewegen wir Berlin: für unsere Kundinnen und Kunden, unsere Mitarbeitenden und die Umwelt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 111 contacts → | ||||
Indirect evidence “Tawzea by E7 supports customers through a range of services including fulfilment, distributions, logistics, mailing room services and dedicated customer service teams.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 110 contacts → | ||||
Indirect evidence “More than twenty years ago, United Mailing Services, Inc started in the owners basement.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 110 contacts → | ||||
Indirect evidence “At FP we deliver fast, convenient and cost effective ways of sending your post.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 107 contacts → | ||||
Indirect evidence “Compu-Mail, LLC is a dynamic and innovative company that specializes in providing comprehensive solutions in document and data processing, printing, mail communications, direct…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: mailroom services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names mailroom services.
- Partial evidence
- Its own public description names part of mailroom services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name mailroom services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 2,401 mailroom services worldwide
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Mailroom services worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among mailroom services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for mailroom services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “mailroom services”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names mailroom services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among mailroom services, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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
- Every listed company carries at least one verified work email, 4,441 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Mailroom services by location
8 lists · largest firstEvery Mailroom services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Mailroom services based in the United States1,102
- Mailroom services based in the United Kingdom172
- Mailroom services based in Germany146
- Mailroom services based in Italy108
- Mailroom services based in France76
- Mailroom services based in the Netherlands56
- Mailroom services based in Canada53
- Mailroom services based in Australia43
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names mailroom services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many mailroom services are there worldwide?
RevenueBase identified 2,401 mailroom services worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Whistl UK LTD, headquartered in Marlow, tops this list with the largest team on record.
Which country has the most mailroom services?
The United States leads with 1,102 companies, followed by the United Kingdom (172) and Germany (146). Every mailroom services list by country and city is linked on this page.
Which city has the most mailroom services?
New York leads with 25 headquartered companies, followed by Los Angeles (19) and London (18).
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 4,441 verified decision-maker contacts tracked across these 2,401 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.