Company lists · Data refreshed September 2026
Top 25 Colonoscopy clinics based in the United States
RevenueBase identified 634 colonoscopy clinics headquartered in the United States as of September 2026 and tracks 8,471 professional contacts across them, including 2,489 with verified work emails. New York is the largest hub.
This list covers colonoscopy clinics 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 colonoscopy clinics based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 408 contacts → | ||||
Partial evidence “Over the past 70 years, Borland Groover has grown into one of Florida’s largest gastroenterology clinics.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 398 contacts → | ||||
Indirect evidence “MNGI Digestive Health (previously Minnesota Gastroenterology, P.A.) is a Twin Cities-based physician practice specializing in the diagnosis and treatment of adult and pediatric…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 266 contacts → | ||||
Indirect evidence “Atlanta Gastroenterology Associates (AGA), now part of United Digestive, is one of the largest gastroenterology practices in the country.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 233 contacts → | ||||
Indirect evidence “Texas Digestive Disease Consultants (TDDC) is the largest gastroenterology group in the United States with 207 board-certified physicians and 99 locations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 216 contacts → | ||||
Indirect evidence “At Ohio Gastro we improve the health of our patients through the delivery of high-quality care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 209 contacts → | ||||
Indirect evidence “Founded in 2009, Capital Digestive Care is the largest private gastroenterology practice in the Mid-Atlantic.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 135 contacts → | ||||
Indirect evidence “At Arizona Digestive Health, we are committed to providing an outstanding level of care through thoughtful and comprehensive consultations and the most advanced procedures…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 134 contacts → | ||||
Indirect evidence “Washington Gastroenterology is the largest gastroenterology practice in Washington State, with locations from Edmonds to Olympia, over 40 Board-Certified Gastroenterologists and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Indirect evidence “When it comes to finding quality care for digestive health and gastrointestinal disorders, all roads lead to southeast Wisconsin.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 115 contacts → | ||||
Partial evidence “At Connecticut GI, Our staff of physicians, advanced practitioners, physician assistants, clinical and administrative staff are here to provide our patients with comprehensive and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 110 contacts → | ||||
Indirect evidence “Digestive Care Center is the region's largest practice dedicated to the prevention, diagnosis and treatment of digestive diseases and illness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 109 contacts → | ||||
Indirect evidence “Committed to providing our patients, referring physicians, and our community with the highest, most comprehensive quality in Gastroenterology New Patient Appointment Line…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 105 contacts → | ||||
Indirect evidence “Gastroenterology of the Rockies delivers world-class, quality care to every patient, every day.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 99 contacts → | ||||
Indirect evidence “Rocky Mountain Gastroenterology (RMG) is devoted to the care of patients with diseases and disorders of the digestive tract.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 96 contacts → | ||||
Indirect evidence “Austin Gastroenterology (AG) is one of Texas' most trusted names in gastroenterology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 96 contacts → | ||||
Indirect evidence “Digestive Health Specialists is a comprehensive gastroenterology care center dedicated to colon cancer prevention and the treatment of digestive system issues such as abdominal…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 94 contacts → | ||||
Indirect evidence “Sponsor, Physician Initiated studies” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 93 contacts → | ||||
Indirect evidence “At Gastroenterology Associates, we specialize in the treatment and prevention of diseases of the digestive system with excellence, compassion, integrity & gratitude.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 83 contacts → | ||||
Indirect evidence “Consultants in Gastroenterology (CIG) is committed to delivering the highest quality care in the field of gastroenterology, making us the first choice for GI care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 82 contacts → | ||||
Indirect evidence “Recognizing the need to unify many small practices in Tampa Bay, several physician leaders began to hold meetings in 2008 to survey the level of interest in forming a single group.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 80 contacts → | ||||
Indirect evidence “Gastroenterology Consultants of San Antonio is the premier gastroenterology practice in South Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 76 contacts → | ||||
Indirect evidence “Florida Digestive Health Specialists, LLP (FDHS) is committed to providing personalized and compassionate care while utilizing the latest technology to ensure the best possible…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 76 contacts → | ||||
Indirect evidence “Digestive Disease Consultants is a hospital & health care company based out of 2151 Riverside Ave, Jacksonville, FL 32204” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 67 contacts → | ||||
Indirect evidence “Digestive Specialists, Inc and Digestive Endoscopy Center, LLC offer the best in compassionate, comprehensive and quality care in Gastroenterology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 65 contacts → | ||||
Indirect evidence “At Gastroenterology Consultants, we are dedicated to the diagnosis, treatment and care of digestive and liver diseases.” 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: colonoscopy clinics. 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 colonoscopy clinics.
- Partial evidence
- Its own public description names part of colonoscopy clinics, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name colonoscopy clinics. 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 634 colonoscopy clinics based in the United States
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Colonoscopy clinics 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 634 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 colonoscopy clinics, 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 “colonoscopy clinics”. 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 colonoscopy clinics), 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 colonoscopy clinics, 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, 2,489 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 colonoscopy clinics, 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 colonoscopy clinics are there based in the United States?
RevenueBase identified 634 colonoscopy clinics 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?
Borland Groover, headquartered in Jacksonville, tops this list with the largest team on record.
Which city has the most colonoscopy clinics?
New York leads with 17 headquartered companies, followed by Houston (10) and San Antonio (7).
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 2,489 verified decision-maker contacts tracked across these 634 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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