Company lists · Data refreshed September 2026
Top 25 Ambulatory surgery centers based in the United States
RevenueBase identified 903 ambulatory surgery centers headquartered in the United States as of September 2026 and tracks 18,984 professional contacts across them, including 4,364 with verified work emails. Houston is the largest hub.
This list covers ambulatory surgery centers 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 19, 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 ambulatory surgery centers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,181 contacts → | ||||
Strong evidence “United Surgical Partners International (USPI) is the largest ambulatory surgery platform in the country and operates ambulatory surgery centers and surgical hospitals.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,340 contacts → | ||||
Partial evidence “Surgery Partners is a leading operator of surgical facilities and ancillary services with more than 180 locations nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 971 contacts → | ||||
Strong evidence “AMSURG is an independent leader in ambulatory surgery center services, operating a network of more than 250 surgery centers nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 380 contacts → | ||||
Strong evidence “Atlas Healthcare Partners is an ambulatory surgery center (ASC) development and management company headquartered in Phoenix, Arizona.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 353 contacts → | ||||
Partial evidence “Surgery-focused.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 316 contacts → | ||||
Partial evidence “MountainView Regional Medical Center is your community healthcare provider.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 311 contacts → | ||||
Strong evidence “USA Clinics Group is an integrated ambulatory healthcare system that provides patient-centered health services at over 160 outpatient clinics across the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 251 contacts → | ||||
Partial evidence “At Blue Cloud, our mission is expanding access to safe and affordable restorative dentistry and oral surgery.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 208 contacts → | ||||
Indirect evidence “Lincoln Surgical Hospital is among 250 surgical specialty hospitals in the United States and one of the only multi-specialty surgical hospitals in Nebraska.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 175 contacts → | ||||
Indirect evidence “In 1946, physicians Clement R.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 149 contacts → | ||||
Indirect evidence “Redefining surgical care through tailored partnerships for ASC initiatives that leverage market-specific strategies to achieve long-term objectives.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 115 contacts → | ||||
Indirect evidence “BHSH is among the nation’s best at providing orthopedic, spine and other surgical care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 108 contacts → | ||||
Partial evidence “Our reputation for superior surgical care is based on our skilled independent physicians and surgeons, experienced staff, outstanding patient care, home-like comforts and enhanced…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 103 contacts → | ||||
Strong evidence “The Ambulatory Surgery Center Association assists ambulatory surgery centers (ASCs) in delivering safe, high-quality, cost-effective patient care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 76 contacts → | ||||
Indirect evidence “Since 2004, Animas Surgical Hospital has been committed to providing Durango and Four Corners residents with a local choice in hospital facilities – one that is close, convenient…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 74 contacts → | ||||
Strong evidence “Compass Surgical Partners is a leading, independent full-service ambulatory surgery center (ASC) development and management partner, representing a nationwide portfolio of joint…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 72 contacts → | ||||
Strong evidence “Copper Ridge Surgery Center was developed by local physicians in partnership with Munson Medical Center to create a state of the art outpatient surgical center.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 68 contacts → | ||||
Strong evidence “NueHealth is a leading provider of integrated ambulatory surgical care solutions, specializing in the development, management, and performance of ambulatory surgery centers (ASCs)…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 66 contacts → | ||||
Indirect evidence “As a physician-owned facility, our purpose at Park Place Surgical Hospital is to provide patients with cost effective, less invasive, quality healthcare in a unique environment…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 59 contacts → | ||||
Strong evidence “Gramercy Surgery Center (GSC) is a fully licensed multi-specialty Ambulatory Surgery Center (ASC) under the New York State Department of Health Article 28 regulations that…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 52 contacts → | ||||
Strong evidence “We are one of the largest independent operators of outpatient surgery centers in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 49 contacts → | ||||
Indirect evidence “Prime MSO is a leading surgical facility management organization.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 48 contacts → | ||||
Strong evidence “We are a accredited Ambulatory Surgery Center (ASC) providing multi-specialty outpatient surgical services to the Triangle (Raleigh, Durham, Chapel Hill) and surrounding areas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 47 contacts → | ||||
Strong evidence “Mississippi Valley Surgery Center opened its doors in 1996, supported by a small group of local physicians with the goal of providing a convenient and patient-centered facility…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Strong evidence “Fremont Surgery Center is a hospital & health care company based out of 39350 Civic Center Dr, Fremont, California, United States.” Source: RevenueBase Database · checked Sep 19, 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: ambulatory surgery centers. 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 ambulatory surgery centers.
- Partial evidence
- Its own public description names part of ambulatory surgery centers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name ambulatory surgery centers. 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 903 ambulatory surgery centers based in the United States
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Ambulatory surgery centers based in the United States at a glance
As of Sep 19, 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 903 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 ambulatory surgery centers, 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 “ambulatory surgery centers”. 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 ambulatory surgery centers), 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 ambulatory surgery centers, 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, 4,364 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 19, 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.
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 ambulatory surgery centers, 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 ambulatory surgery centers are there based in the United States?
RevenueBase identified 903 ambulatory surgery centers 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?
United Surgical Partners International, INC, headquartered in Dallas, tops this list with the largest team on record.
Which city has the most ambulatory surgery centers?
Houston leads with 16 headquartered companies, followed by New York (15) and Dallas (14).
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 4,364 verified decision-maker contacts tracked across these 903 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 19, 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.
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