Company lists · Data refreshed September 2026

Top 25 Respiratory disease biotech companies based in the United States

RevenueBase identified 286 respiratory disease biotech companies headquartered in the United States as of September 2026 and tracks 15,463 professional contacts across them, including 8,668 with verified work emails. San Diego is the largest hub.

This list covers respiratory disease biotech companies 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 17, 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 17, 2026 86% judged on-target in blind review
286Companies
15,463Contacts tracked
8,668Verified emails
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The 25 largest respiratory disease biotech companies based in the United States

Ranked by team size
Top 25 of 286 respiratory disease biotech companies based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to respiratory disease biotech companies: 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
1Strong evidenceBoston, MA, United StatesHQ checked Sep 17, 20265,001-10,0008,099 contacts →

Strong evidence

“Vertex is a global biotechnology company that invests in scientific innovation to create transformative medicines for people with serious diseases and has made significant…”

Source: RevenueBase Database · checked Sep 17, 2026
2Indirect evidenceGaithersburg, MD, United StatesHQ checked Sep 17, 20261,001-5,000886 contacts →

Indirect evidence

“MedImmune is the global biologics research and development arm of AstraZeneca, a global, innovation-driven biopharmaceutical business that focuses on the discovery, development…”

Source: RevenueBase Database · checked Sep 17, 2026
3Partial evidenceDanbury, CT, United StatesHQ checked Sep 17, 2026501-1,000732 contacts →

Partial evidence

“MannKind Corporation (Nasdaq: MNKD) is a biopharmaceutical company dedicated to transforming chronic disease care through innovative, patient-centric solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
4Indirect evidenceMettawa, IL, United StatesHQ checked Sep 17, 2026n/a604 contacts →

Indirect evidence

“Vyaire is no longer an active trading organisation.”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceLouisville, CO, United StatesHQ checked Sep 17, 2026201-500361 contacts →

Indirect evidence

“Biodesix is a leading diagnostics solutions company, driven to improve clinical care and outcomes for patients.”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceWaltham, MA, United StatesHQ checked Sep 17, 2026201-500326 contacts →

Indirect evidence

“Sobi is an international specialty healthcare company dedicated to developing treatments and extensive patient support networks for people with rare and difficult to treat…”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidencePasadena, CA, United StatesHQ checked Sep 17, 2026201-500281 contacts →

Indirect evidence

“Designing Proteins.”

Source: RevenueBase Database · checked Sep 17, 2026
8Strong evidenceEmeryville, CA, United StatesHQ checked Sep 17, 202651-200236 contacts →

Strong evidence

“4DMT is a leading late-stage biotechnology company advancing durable and disease-targeted therapeutics with potential to transform treatment paradigms and provide unprecedented…”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 17, 202651-200182 contacts →

Indirect evidence

“Founded in 2013 and based in San Diego, California, Arcturus Therapeutics Holdings Inc.(Nasdaq: ARCT) is a messenger RNA medicines company focused on the development of liver and…”

Source: RevenueBase Database · checked Sep 17, 2026
10Strong evidenceSouth San Francisco, CA, United StatesHQ checked Sep 17, 202651-200165 contacts →

Strong evidence

“Theravance Biopharma aims to transform the treatment of specialty respiratory and neurologic diseases by delivering Medicines that Make a Difference® in patients’ and caregivers’…”

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceWatertown, MA, United StatesHQ checked Sep 17, 202651-200151 contacts →

Indirect evidence

“Enanta is using its robust, chemistry-driven approach and drug discovery capabilities to become a leader in the discovery and development of small molecule drugs with an emphasis…”

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 17, 2026501-1,000149 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceWeston, FL, United StatesHQ checked Sep 17, 202651-20097 contacts →

Indirect evidence

“Transpire Bio Inc.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidencePlattsburgh, NY, United StatesHQ checked Sep 17, 202651-20091 contacts →

Indirect evidence

“Monaghan Medical Corporation (MMC) is a leader in the development and manufacture of aerosol drug delivery devices and asthma management products.”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceUnited StatesHQ checked Sep 17, 202651-20090 contacts →

Strong evidence

“Savara is a clinical stage biopharmaceutical company focused on rare respiratory diseases.”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceSomerset, PA, United StatesHQ checked Sep 17, 2026201-50088 contacts →

Partial evidence

“DeVilbiss Healthcare is a world leader in the design, manufacture, and marketing of respiratory medical products, including oxygen, aerosol, suction and sleep therapy.”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 17, 2026201-50085 contacts →

Indirect evidence

“Medarex is a biopharmaceutical company focused on the discovery, development, and potential commercialization of fully human antibody-based therapeutics to treat life- threatening…”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 17, 202611-5072 contacts →

Indirect evidence

“aTyr Pharma (Nasdaq: LIFE) is a biotherapeutics company engaged in the discovery and development of innovative medicines based on novel biological pathways.”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceEagan, MN, United StatesHQ checked Sep 17, 202651-20071 contacts →

Partial evidence

“We’re a company built on the belief that we can improve the standard of care for people with compromised respiratory systems.”

Source: RevenueBase Database · checked Sep 17, 2026
20Indirect evidenceGarden City, NY, United StatesHQ checked Sep 17, 202651-20069 contacts →

Indirect evidence

“AIT Therapeutics, commencing June 26, 2019 is named Beyond Air®.”

Source: RevenueBase Database · checked Sep 17, 2026
21Partial evidenceAndover, MA, United StatesHQ checked Sep 17, 202651-20066 contacts →

Partial evidence

“For 30 years, ndd has been dedicated to transforming how the world detects, understands, and manages lung disease.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceWaltham, MA, United StatesHQ checked Sep 17, 202651-20062 contacts →

Indirect evidence

“We are advancing verekitug, a clinical-stage monoclonal antibody targeting an upstream driver of inflammatory response.”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceSan Jose, CA, United StatesHQ checked Sep 17, 202651-20059 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
24Indirect evidenceGoleta, CA, United StatesHQ checked Sep 17, 202611-5056 contacts →

Indirect evidence

“Vascular BioSciences (VBS), a biomedical company with operations in Research Triangle, NC, San Diego, and Goleta, CA, makes interventional catheters to obtain pulmonary…”

Source: RevenueBase Database · checked Sep 17, 2026
25Indirect evidenceWaltham, MA, United StatesHQ checked Sep 17, 202611-5053 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026

Showing 25 of 286 respiratory disease biotech companies based in the United States

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Respiratory disease biotech companies based in the United States at a glance

As of Sep 17, 2026
56.1%Verified-email coverage
54.1Average contacts per company
1-10Median size (employees)
6.6%Largest-city concentration · San Diego
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
149
11-50
96
51-200
30
201-500
6
501-1,000
2
1,001-5,000
2
5,001-10,000
1

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 286 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 respiratory disease biotech companies, 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 “respiratory disease biotech companies”. 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 respiratory disease biotech companies), 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 respiratory disease biotech companies, 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, 8,668 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 17, 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 respiratory disease biotech companies, 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 respiratory disease biotech companies are there based in the United States?

RevenueBase identified 286 respiratory disease biotech companies 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?

Vertex Pharmaceuticals, headquartered in Boston, tops this list with the largest team on record.

Which city has the most respiratory disease biotech companies?

San Diego leads with 19 headquartered companies, followed by Boston (9) and Durham (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 8,668 verified decision-maker contacts tracked across these 286 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 17, 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.