Company lists · Data refreshed September 2026
Top 25 Nasal and sinus clinics worldwide
RevenueBase identified 449 nasal and sinus clinics worldwide as of September 2026 and tracks 3,547 professional contacts across them, including 869 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers nasal and sinus clinics 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 nasal and sinus clinics 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 nasal and sinus clinics worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 227 contacts → | ||||
Indirect evidence “ADVENT knows you want to be your best self.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 207 contacts → | ||||
Partial evidence “Patient first." That's how The Allergy, Asthma & Sinus Center has become one of the country's largest and most established allergy practices.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 166 contacts → | ||||
Partial evidence “At Aspire Allergy & Sinus we pride ourselves on providing patient care that sets us apart from the rest and improves quality of life.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 133 contacts → | ||||
Indirect evidence “Welcome to Ear, Nose & Throat Associates, the premier ENT group serving the Tampa Bay area.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 87 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 79 contacts → | ||||
Indirect evidence “Texas Ear, Nose & Throat Specialists is one of the largest ENT groups in the United States with fourteen offices serving four counties in the greater Houston Texas area.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 58 contacts → | ||||
Partial evidence “The best Ear, Nose, Throat, Sinus & Allergy care in the United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 57 contacts → | ||||
Indirect evidence “Valley ENT is the largest otolaryngology-head and neck surgery group in Arizona.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 51 contacts → | ||||
Indirect evidence “Helios Sound Health Services is a multi-location otolaryngology practice with cutting-edge, patient-focused care.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 50 contacts → | ||||
Partial evidence “Our team specializes in ear, nose, throat, and allergy care – from more common procedures, such as ear tube placement, tonsillectomy, in office sinus surgery, and allergy testing…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 35 contacts → | ||||
Indirect evidence “From the newborn to the elderly, our goal is to provide the highest quality and most compassionate care utilizing the latest medical advances and minimally invasive surgical…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 34 contacts → | ||||
Indirect evidence “Northwest ENT and Allergy Center is a full service ear, nose, and throat, medicine and surgery practice with multiple locations in North Georgia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 34 contacts → | ||||
Partial evidence “The National Sinus Institute was founded with the vision of bringing health care to our patients, including rural areas where specialists are scarce.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Indirect evidence “Our practice has provided care for Collin County since 1975.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 27 contacts → | ||||
Partial evidence “Welcome to Capitol Breathe Free Sinus and Allergy Centers – Arlington, VA Welcome to Capitol Breathe Free Sinus and Allergy Centers, where we are passionate about helping you…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 26 contacts → | ||||
Indirect evidence “At Piedmont Ear, Nose, Throat & Related Allergy, PC, we are committed to providing you exceptional medical care.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 24 contacts → | ||||
Indirect evidence “Initially founded in Gold Coast, Queensland, we have since expanded to Brisbane, Sydney and Melbourne.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 24 contacts → | ||||
Partial evidence “Welcome At Eastern Virginia Ear, Nose, & Throat Specialists, we provide comprehensive and specialized care in general ear, nose and throat, sinus diseases, allergy, snoring, head…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 23 contacts → | ||||
Indirect evidence “Personalized ENT and allergy care across Fairfield County, with convenient in-office evaluation and treatment options.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Partial evidence “Ear, Nose & Throat Clinic of Coffee County has been serving Southeast Georgia with quality ears, nose, and throat services for more than a decade.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 21 contacts → | ||||
Partial evidence “Knoxville's premiere ear, nose, throat, allergy, & sinus center with 6 convenient locations to serve you.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 20 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 20 contacts → | ||||
Partial evidence “Moreland Ear, Nose & Throat, offers treatment for sinus disorders, sleep disorders, airway problems, swallowing disorders, snoring problems, speech disorders and allergy problems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 19 contacts → | ||||
Indirect evidence “Ear, Nose & Throat Consultants of Greater Detroit has been a trusted healthcare provider in Southeast Michigan since 1976, offering comprehensive ENT services to individuals of…” 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: nasal and sinus 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 nasal and sinus clinics.
- Partial evidence
- Its own public description names part of nasal and sinus clinics, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nasal and sinus 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 449 nasal and sinus clinics worldwide
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Nasal and sinus clinics 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 nasal and sinus 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.
- Coverage
- Every country. Country and city lists for nasal and sinus clinics are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “nasal and sinus 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 nasal and sinus 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 nasal and sinus clinics, 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, 869 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.
Nasal and sinus clinics by location
1 lists · largest firstEvery Nasal and sinus clinics list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 nasal and sinus 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 nasal and sinus clinics are there worldwide?
RevenueBase identified 449 nasal and sinus clinics 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?
Advent, headquartered in Milwaukee, tops this list with the largest team on record.
Which country has the most nasal and sinus clinics?
The United States leads with 315 companies. Every nasal and sinus clinics list by country and city is linked on this page.
Which city has the most nasal and sinus clinics?
Houston leads with 7 headquartered companies, followed by Atlanta (6) and Austin (6).
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 869 verified decision-maker contacts tracked across these 449 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.