Company lists · Data refreshed September 2026
Top 25 Allergy and immunology practices worldwide
RevenueBase identified 1,050 allergy and immunology practices worldwide as of September 2026 and tracks 12,360 professional contacts across them, including 3,350 with verified work emails. The United States is the largest market and San Antonio the largest hub.
This list covers allergy and immunology practices 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 19, 2026. Country and city lists for allergy and immunology practices 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 allergy and immunology practices worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,238 contacts → | ||||
Partial evidence “We are the pioneers of allergy solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 478 contacts → | ||||
Strong evidence “Allergy Partners is the largest single-specialty care provider for allergy, asthma, and immunologic disorders in the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 418 contacts → | ||||
Indirect evidence “LETI Pharma, the Experimental Laboratory for Immunogenic Therapeutics, is an independent, family-owned, biopharmaceutical company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 347 contacts → | ||||
Strong evidence “Allergy Therapeutics is a visionary immunology business with specialist experience in the research and development of allergy treatments.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 265 contacts → | ||||
Partial evidence “HAL Allergy is one of the European top players in the development, production and distribution of allergen immunotherapies for the treatment and prevention of allergic diseases.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 233 contacts → | ||||
Indirect evidence “It’s so much more than a specimen.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 224 contacts → | ||||
Strong evidence “Family Allergy & Asthma is a multi-site allergy practice with over 70 offices in Arkansas, Kentucky, Indiana, Missouri, Ohio, Pennsylvania and Tennessee.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 207 contacts → | ||||
Strong 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 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 183 contacts → | ||||
Indirect evidence “Currently working in offices in The Woodlands and Huntsville.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 182 contacts → | ||||
Strong evidence “AllerVie Health intends to be the national, trusted leader in the delivery of allergy and immunology services through partnership with leading practices who share in our mission…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 158 contacts → | ||||
Partial evidence “At Allergopharma, we put all of our energy into furthering allergology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 153 contacts → | ||||
Partial evidence “Focused in allergy treatment and diagnosis, DIATER provides doctors and patients with a wide range of solutions that improve patient life quality.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 135 contacts → | ||||
Strong evidence “Serving the Charlotte area since 1952, Carolina Asthma & Allergy Center is the area’s only asthma and allergy practice made up entirely of board-certified physicians.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 132 contacts → | ||||
Strong evidence “The European Academy of Allergy and Clinical Immunology (EAACI) is a non-profit organization active in the field of allergic and immunologic diseases such as asthma, rhinitis…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 127 contacts → | ||||
Partial evidence “Delivering comprehensive, leading-edge allergy, asthma, and sinus care across Texas and California as one AENT family committed to elevating the health of every community we serve.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 123 contacts → | ||||
Indirect evidence “At Pulmonary Associates of Richmond, we recognize the importance of the doctor-patient relationship and we are proud of our 50-year history of providing the the highest quality…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 99 contacts → | ||||
Strong evidence “Southern Ear, Nose, Throat and Allergy Physicians (SENTA) is a leading community of the Southeast’s finest ENT and Allergy/Immunology specialists.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 95 contacts → | ||||
Indirect evidence “ROXALL Group is an international pharmaceutical company based in Hamburg, Germany.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 83 contacts → | ||||
Partial evidence “Bencard Allergie GmbH Deutschland und Österreich sind pharmazeutische Unternehmen, die sich sehr erfolgreich auf das zukunftsorientierte Marktsegment Allergie ausgerichtet haben.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 74 contacts → | ||||
Strong evidence “Since 1972, Atlanta Allergy & Asthma has been the premier provider of quality, state-of-the-art care for allergic, asthmatic, and immunologic diseases.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 69 contacts → | ||||
Partial evidence “Here at Colorado Allergy & Asthma Centers®, our philosophy is to provide the highest quality, cost-effective medical care to adults and children who have asthma, allergies, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 58 contacts → | ||||
Strong evidence “Raleigh Capitol Ear, Nose Throat & Allergy is a private medical practice based in Raleigh, NC.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 51 contacts → | ||||
Partial evidence “The Columbia Asthma & Allergy Clinic is a brand new state-of-the-art facility that provides comprehensive evaluation and treatment for adult and pediatric patients suffering from…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Indirect evidence “Somos a clínica mais tradicional no tratamento de alergias e saúde respiratória no Rio de Janeiro.” 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: allergy and immunology practices. 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 allergy and immunology practices.
- Partial evidence
- Its own public description names part of allergy and immunology practices, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name allergy and immunology practices. 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 1,050 allergy and immunology practices worldwide
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Allergy and immunology practices worldwide at a glance
As of Sep 19, 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 allergy and immunology practices, 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 allergy and immunology practices are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “allergy and immunology practices”. 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 allergy and immunology practices), 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 allergy and immunology practices, 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, 3,350 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.
Allergy and immunology practices by location
2 lists · largest firstEvery Allergy and immunology practices 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 allergy and immunology practices, 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 allergy and immunology practices are there worldwide?
RevenueBase identified 1,050 allergy and immunology practices 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?
ALK, headquartered in Hoersholm, tops this list with the largest team on record.
Which country has the most allergy and immunology practices?
The United States leads with 665 companies, followed by Brazil (58). Every allergy and immunology practices list by country and city is linked on this page.
Which city has the most allergy and immunology practices?
San Antonio leads with 15 headquartered companies, followed by New York (14) and Rio De Janeiro (13).
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 3,350 verified decision-maker contacts tracked across these 1,050 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.