Company lists · Data refreshed September 2026
Top 25 Office management outsourcing companies based in the United States
RevenueBase identified 3,026 office management outsourcing companies headquartered in the United States as of September 2026 and tracks 42,160 professional contacts across them, including 7,287 with verified work emails. New York is the largest hub.
This list covers office management outsourcing 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.
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 office management outsourcing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,247 contacts → | ||||
Indirect evidence “Enshored powers the growth of ambitious high growth companies by delivering and managing teams of elite outsourcers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,237 contacts → | ||||
Indirect evidence “SEBPO transforms operational complexity into a seamless, strategic advantage.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,226 contacts → | ||||
Partial evidence “Our Mission Pacific Office Automation is dedicated to the belief that a team of individuals who constantly challenge each other will develop the skills and manpower necessary to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 921 contacts → | ||||
Strong evidence “IST Management Services, Inc is an outsourcing company specializing in the life cycle management of your information: From incoming mail, to complex print jobs, to eDiscovery and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 703 contacts → | ||||
Indirect evidence “At Prialto, we exist to Amplify People, from every executive who uses our service to every employee who delivers it.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 658 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 560 contacts → | ||||
Partial evidence “Physicians Independent Management Services, Inc.(PIMS) provides turn-key billing and practice management support to medical providers of all specialties.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 553 contacts → | ||||
Partial evidence “Global Strategic is a business process outsourcing partner that builds high-performing teams through custom onshore, nearshore, and offshore solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 527 contacts → | ||||
Strong evidence “QWay Technologies QWay is a global business outsourcing provider with a strong background of Revenue Cycle Management and providing customer support.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 490 contacts → | ||||
Partial evidence “OBM is a leading business process management company in UAE which provides client driven business management solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 447 contacts → | ||||
Indirect evidence “Velan Info Services is a leading multidisciplinary service provider with its clients across the globe.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 416 contacts → | ||||
Indirect evidence “Founded in 1985, OKS Group provides customized BPO and LPO services to some of the world's largest and most demanding companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 342 contacts → | ||||
Partial evidence “EDS service solutions is the number one outsourcing solution for Fortune 500 companies throughout the US.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 316 contacts → | ||||
Indirect evidence “STAT Informatic Solutions is an outsource alternative catering to healthcare, financial institutions, law firms and many other industries with the passion and understanding to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 289 contacts → | ||||
Indirect evidence “Are you a multi-facility healthcare operator?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 275 contacts → | ||||
Indirect evidence “Managed Labor Solutions (MLS) is a unique provider of outsourced labor to companies large and small.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 249 contacts → | ||||
Partial evidence “Knowledge process outsourcing Company located at Mumbai, India Areas supported Data entry Research Bookeeping web Design Internet marketing SEO Alfa makes life better for…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 243 contacts → | ||||
Partial evidence “Intelligent Office®, the leader in virtual office solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 237 contacts → | ||||
Partial evidence “The MCS Group, Inc, a certified Women’s Business Enterprise, is a nationally-recognized provider of outsourcing services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 219 contacts → | ||||
Partial evidence “Founded in 1988 to provide and manage back-office and clerical support services to government and private companies, PRWT has continually expanded its business process solutions…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 217 contacts → | ||||
Partial evidence “247Digitize is an outsourcing and tech partner that optimizes and manages non-core processes so your key resources can focus on productivity and growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 210 contacts → | ||||
Indirect evidence “Smarter Operations for the Modern Workplace The way the workplace works is changing fast.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 187 contacts → | ||||
Partial evidence “We are a leading global outsourcing services company with highly skilled professionals working for our clients and partners.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 184 contacts → | ||||
Partial evidence “Servicios Contables is an Executive Office company located in 115 Parker Rd, Houston, Texas, United States.” Source: RevenueBase Database · checked Sep 29, 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: office management outsourcing companies. 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 office management outsourcing companies.
- Partial evidence
- Its own public description names part of office management outsourcing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name office management outsourcing companies. 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 3,026 office management outsourcing companies based in the United States
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Office management outsourcing companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,026 companies.
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 office management outsourcing companies, 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “office management outsourcing companies”. 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 office management outsourcing companies), 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 office management outsourcing companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- 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, 7,287 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 29, 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.
Office management outsourcing companies by metro
- Office management outsourcing companies in New York103
- Office management outsourcing companies in Atlanta82
- Office management outsourcing companies in Houston63
- Office management outsourcing companies in Austin47
- Office management outsourcing companies in Los Angeles41
- Office management outsourcing companies in Dallas38
- Office management outsourcing companies in Miami38
- Office management outsourcing companies in Chicago37
- Office management outsourcing companies in Las Vegas31
- Office management outsourcing companies in Orlando30
- Office management outsourcing companies in San Diego29
- Office management outsourcing companies in San Francisco26
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 office management outsourcing companies, 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 office management outsourcing companies are there based in the United States?
RevenueBase identified 3,026 office management outsourcing companies headquartered in the United States 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?
Enshored, headquartered in Signal Hill, tops this list with the largest team on record.
Which city has the most office management outsourcing companies?
New York leads with 103 headquartered companies, followed by Atlanta (82) and Houston (63).
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 7,287 verified decision-maker contacts tracked across these 3,026 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 29, 2026.
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Office management outsourcing companies by geography
- Office management outsourcing companies based in Melbourne, Australia
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- Office management outsourcing companies based in Sao Paulo, Brazil
- Office management outsourcing companies based in Toronto, Canada
- Office management outsourcing companies based in Paris, France
- Office management outsourcing companies based in Ahmedabad, India
- Office management outsourcing companies based in Bangalore, India
- Office management outsourcing companies based in Chennai, India
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.
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