Company lists · Data refreshed September 2026

Top 25 Vaccination clinics based in the United States

RevenueBase identified 407 vaccination clinics headquartered in the United States as of September 2026 and tracks 2,825 professional contacts across them, including 193 with verified work emails. Houston is the largest hub.

This list covers vaccination 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 22, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review
407Companies
2,825Contacts tracked
193Verified emails
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The 25 largest vaccination clinics based in the United States

Ranked by team size
Top 25 of 407 vaccination clinics based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to vaccination clinics: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePhoenix, AZ, United StatesHQ checked Sep 22, 20261,001-5,000516 contacts →

Partial evidence

“Passport Health is the largest provider of travel medical services in North America with more than 300 clinics in the U.S, Canada, and Mexico.”

Source: RevenueBase Database · checked Sep 22, 2026
2Strong evidenceOmaha, NE, United StatesHQ checked Sep 22, 20261,001-5,000133 contacts →

Strong evidence

“From small town America to big city, Coast to Coast, OccuVAX provides onsite flu vaccination clinics for Employers.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceLongwood, FL, United StatesHQ checked Sep 22, 2026201-500124 contacts →

Indirect evidence

“ShotVet is a leading, national company providing affordable pet shots to dogs & cats across the country.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 22, 20261,001-5,000115 contacts →

Indirect evidence

“In March 2020, CEO Raymond Embry saw the toll COVID-19 was taking on his community, so he pivoted resources from Embry Women's Health in Mesa and began offering free* PCR COVID-19…”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceSouthern Pines, NC, United StatesHQ checked Sep 22, 2026n/a47 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
6Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 22, 202651-20032 contacts →

Partial evidence

“Homeland Health Specialists, Inc.(HHSI) is a Minnesota-based provider of essential wellness and vaccination services.”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceBaltimore, MD, United StatesHQ checked Sep 22, 202611-5031 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
8Strong evidenceVirginia Beach, VA, United StatesHQ checked Sep 22, 20261-1017 contacts →

Strong evidence

“Great Neck Veterinary Clinic provides compassionate veterinary care to cats, dogs and pocket pets, including animal surgery, vaccinations, dental care and wellness.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidencePismo Beach, CA, United StatesHQ checked Sep 22, 202611-5016 contacts →

Partial evidence

“Welcome to Pismo Beach Veterinary Clinic!”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceBronx, NY, United StatesHQ checked Sep 22, 20261-1016 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidenceLansing, MI, United StatesHQ checked Sep 22, 202611-5015 contacts →

Indirect evidence

“Knowledgeable Lansing vets are hard to find.”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceSeattle, WA, United StatesHQ checked Sep 22, 202651-20014 contacts →

Indirect evidence

“Seattle Visiting Nurse Association (SVNA) is the largest community mass immunizer in Washington State.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceIrmo, SC, United StatesHQ checked Sep 22, 202611-5014 contacts →

Partial evidence

“Well Pets is a full service veterinary clinic in Irmo, SC, with a day practice open on Mondays-Fridays by appointment and an After Hours Urgent Care on weeknights and weekends by…”

Source: RevenueBase Database · checked Sep 22, 2026
14Partial evidenceLakewood, CA, United StatesHQ checked Sep 22, 20261-1012 contacts →

Partial evidence

“Our Lakewood, CA veterinarians offer a wide variety of pet care services including spay and neutering, general exams, vaccinations, and much more.”

Source: RevenueBase Database · checked Sep 22, 2026
15Indirect evidenceEl Paso, TX, United StatesHQ checked Sep 22, 202611-5011 contacts →

Indirect evidence

“Immunize El Paso is a vital healthcare resource for immunizations serving those who do not have a traditional medical home or are otherwise unable to obtain timely immunization.”

Source: RevenueBase Database · checked Sep 22, 2026
16Indirect evidenceBozeman, MT, United StatesHQ checked Sep 22, 202611-5011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
17Partial evidenceQuincy, MA, United StatesHQ checked Sep 22, 202611-5011 contacts →

Partial evidence

“Willard Veterinary Clinic is one of the premier animal clinics in the Quincy area.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceCabot, AR, United StatesHQ checked Sep 22, 202651-20010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
19Partial evidenceMadison, WI, United StatesHQ checked Sep 22, 20261-1010 contacts →

Partial evidence

“Sauk Point Veterinary Clinic is a family friendly small animal clinic.”

Source: RevenueBase Database · checked Sep 22, 2026
20Indirect evidenceStockton, CA, United StatesHQ checked Sep 22, 20261-1010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceBrentwood, CA, United StatesHQ checked Sep 22, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026
22Partial evidenceAustin, TX, United StatesHQ checked Sep 22, 202611-508 contacts →

Partial evidence

“Our travel clinic is here to give you the shots you need before leaving the country.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceWyoming, MN, United StatesHQ checked Sep 22, 202611-508 contacts →

Indirect evidence

“Blue Sky Animal Hospital is a veterinary company based out of 26850 Kettle River Blvd, Wyoming, Minnesota, United States.”

Source: RevenueBase Database · checked Sep 22, 2026
24Indirect evidencePahrump, NV, United StatesHQ checked Sep 22, 20261-107 contacts →

Indirect evidence

“Veterinarian in Pahrump, NV - Visit our skilled Veterinarian in Pahrump, NV.”

Source: RevenueBase Database · checked Sep 22, 2026
25Indirect evidenceMarana, AZ, United StatesHQ checked Sep 22, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 22, 2026

Showing 25 of 407 vaccination clinics based in the United States

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Vaccination clinics based in the United States at a glance

As of Sep 22, 2026
6.8%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
1.5%Largest-city concentration · Houston
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
255
11-50
126
51-200
11
201-500
2
1,001-5,000
3

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 407 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 vaccination 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 “vaccination 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 vaccination 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 vaccination 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, 193 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 22, 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 vaccination 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 vaccination clinics are there based in the United States?

RevenueBase identified 407 vaccination 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?

Passport Health, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most vaccination clinics?

Houston leads with 6 headquartered companies, followed by New York (5) and Austin (4).

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 193 verified decision-maker contacts tracked across these 407 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 22, 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.