Company lists · Data refreshed September 2026
Top 25 Long-acting injectable manufacturers based in the United States
RevenueBase identified 131 long-acting injectable manufacturers headquartered in the United States as of September 2026 and tracks 25,739 professional contacts across them, including 9,128 with verified work emails. Princeton is the largest hub.
This list covers long-acting injectable manufacturers 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.
The 25 largest long-acting injectable manufacturers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,073 contacts → | ||||
Indirect evidence “Amneal Pharmaceuticals, Inc.(NASDAQ: AMRX) is guided by a simple belief: essential medicines should be accessible to everyone.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 5,535 contacts → | ||||
Indirect evidence “West Pharmaceutical Services, Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,881 contacts → | ||||
Indirect evidence “Hospira is now part of Pfizer Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,095 contacts → | ||||
Partial evidence “Par Pharmaceutical: High-Quality, Cost-Effective Generic Products Par Pharmaceutical, headquartered in Chestnut Ridge, New York, develops, manufactures and markets safe…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 953 contacts → | ||||
Indirect evidence “Founded in 2007, we are a specialty pharmaceutical company dedicated to innovating treatments in the areas of urology, oncology, and endocrinology.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 885 contacts → | ||||
Partial evidence “Purdue and its subsidiaries develop, manufacture and market medications to meet the evolving needs of healthcare professionals, patients, and caregivers.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 849 contacts → | ||||
Strong evidence “American Regent, Inc, a Daiichi Sankyo Group Company, develops, manufactures, and supplies high quality sterile injectables for healthcare providers, clinics and hospitals across…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 727 contacts → | ||||
Indirect evidence “Kyowa Kirin is a global specialty pharmaceutical company that applies state-of-the-art biotechnologies to discover and deliver novel medicines.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 524 contacts → | ||||
Indirect evidence “Halozyme is a biopharmaceutical company bringing disruptive solutions to significantly improve patient experiences and outcomes for emerging and established therapies.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 392 contacts → | ||||
Partial evidence “Amphastar Pharmaceuticals is a recognized pharmaceutical company that uses state-of-the-art, cGMP-compliant facilities to develop, manufacture, and market biopharmaceutical…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 309 contacts → | ||||
Indirect evidence “Zydus Pharmaceuticals (USA) Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 286 contacts → | ||||
Indirect evidence “Kashiv BioSciences, LLC is a fully integrated biosciences company headquartered in Bridgewater, New Jersey with locations in Piscataway, NJ, Chicago IL, and Ahmedabad, India.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 273 contacts → | ||||
Indirect evidence “Astra Zeneca LP Us is a Pharmaceuticals company located in 1800 Concord Pike, Wilmington, Delaware, United States.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 191 contacts → | ||||
Indirect evidence “Heron Therapeutics, Inc.(formerly A.P.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 138 contacts → | ||||
Indirect evidence “ImprimisRx, based in San Diego, California, is a specialty pharmaceutical company focused on the development and commercialization of proprietary and novel sterile and topical…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 131 contacts → | ||||
Partial evidence “Founded in 2017 and based in Chicago, Meitheal is focused on the development and commercialization of generic injectable medications and, as of 2022, has expanded its focus to…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 127 contacts → | ||||
Indirect evidence “Headquartered in Salisbury, Maryland, Jubilant Cadista Pharmaceuticals Inc.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 116 contacts → | ||||
Indirect evidence “Ascent Pharmaceuticals, Inc, headquartered in Central Islip, New York, is a leading generic pharmaceutical company specializing in the development, manufacturing, and analysis of…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 115 contacts → | ||||
Indirect evidence “Nexus Pharmaceuticals is a US-based, family and minority-owned healthcare company.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 79 contacts → | ||||
Indirect evidence “IGC PHARMA is a Pharmaceutical company based in Maryland.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 73 contacts → | ||||
Indirect evidence “Itaan Pharma is driven by industrial pharmacy professionals with knowledge of sterile product development complexities meeting current regulatory requirements.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 71 contacts → | ||||
Indirect evidence “Elektrofi is a biopharmaceutical formulation technology company that is revolutionizing the delivery of biologic therapies by giving patients the ability to control how they want…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 71 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 60 contacts → | ||||
Partial evidence “Eugia is an independent specialty pharmaceutical company focused on delivering generic sterile injectables, oncology, hormones, and ophthalmic medicines.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 54 contacts → | ||||
Indirect evidence “About Antares Antares Pharma is a specialty pharmaceutical company that combines drug development expertise with proprietary delivery technology to deliver safe and effective…” Source: RevenueBase Database · checked Sep 17, 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: long-acting injectable manufacturers. 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 long-acting injectable manufacturers.
- Partial evidence
- Its own public description names part of long-acting injectable manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name long-acting injectable manufacturers. 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 131 long-acting injectable manufacturers based in the United States
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Long-acting injectable manufacturers based in the United States at a glance
As of Sep 17, 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 131 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 long-acting injectable manufacturers, 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 “long-acting injectable manufacturers”. 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 long-acting injectable manufacturers), 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 long-acting injectable manufacturers, 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, 9,128 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 long-acting injectable manufacturers, 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 long-acting injectable manufacturers are there based in the United States?
RevenueBase identified 131 long-acting injectable manufacturers 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?
Amneal Pharmaceuticals, headquartered in Bridgewater, tops this list with the largest team on record.
Which city has the most long-acting injectable manufacturers?
Princeton leads with 4 headquartered companies, followed by Bridgewater (3) and Philadelphia (3).
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 9,128 verified decision-maker contacts tracked across these 131 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.
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