Company lists · Data refreshed September 2026

Top 25 Pharmaceutical ingredient manufacturers based in the United States

Name: Pharmaceutical ingredient manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 307 companies tracked

RevenueBase identified 307 company matches for pharmaceutical ingredient manufacturers associated with the United States as of September 2026 and tracks 9,248 professional contacts across them, including 2,953 with verified work emails. Charlotte is the largest hub.

This list covers company matches for pharmaceutical ingredient manufacturers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

307Companies

9,248Contacts tracked

2,953Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest pharmaceutical ingredient manufacturers based in the United States

Ranked by team size

Top 25 of 307 company matches for pharmaceutical ingredient manufacturers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Veranova	Exact match	Devens, MA, United StatesHQ recorded Sep 17, 2026	501-1,000	574 contacts →
	Exact match “Veranova is a global leader in process development and manufacturing of active pharmaceutical ingredients (APIs), with a focus on specialty and complex chemistry for small…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	SK Pharmteco	Exact match	Rancho Cordova, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	540 contacts →
	Exact match “Established in 2019 by SK Inc, SK pharmteco is a global contract development and manufacturing organization (CDMO) with operations across the U.S, Europe, and South Korea.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	LNK International INC	Exact match	Hauppauge, United StatesHQ recorded Sep 17, 2026	1,001-5,000	361 contacts →
	Exact match “Founded in 1980, LNK International has focused exclusively on producing over-the-counter pharmaceuticals for our customers’ private label programs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	SPI Pharma	Exact match	Wilmington, DE, United StatesHQ recorded Sep 17, 2026	201-500	304 contacts →
	Exact match “For over 75 years, we have supplied the pharmaceutical industry with highly engineered products and innovative solutions that improve the formulation and delivery of drug products…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Jost Chemical	Exact match	St. Louis, MO, United StatesHQ recorded Sep 17, 2026	201-500	259 contacts →
	Exact match “Jost Chemical Co.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	MSN Pharmaceuticals INC	Exact match	Piscataway, NJ, United StatesHQ recorded Sep 17, 2026	51-200	257 contacts →
	Exact match “MSN Pharmaceuticals Inc.(MSNPI), a fully owned subsidiary of MSN Group of Companies, is one of the fast-emerging Finished Dosages manufacturers of USA.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Olon USA	Exact match	Concord, OH, United StatesHQ recorded Sep 17, 2026	51-200	237 contacts →
	Exact match “Who we are: On June 9, 2017, Olon S.p.A, a leading Active Pharmaceutical Ingredients (API) contract development and manufacturing organization (CDMO) and Generics supplier…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Spectrum Chemical Mfg. Corp	Exact match	New Brunswick, NJ, United StatesHQ recorded Sep 17, 2026	201-500	232 contacts →
	Exact match “Spectrum Chemical Mfg.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Jubilant Pharma Limited	Exact match	Yardley, PA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	184 contacts →
	Exact match “Jubilant Pharma Limited is a global integrated pharmaceutical company offering a wide range of products and services to our customers across geographies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Norwich Pharma Services	Exact match	Norwich, NY, United StatesHQ recorded Sep 17, 2026	201-500	174 contacts →
	Exact match “Norwich is a leading provider of contract manufacturing and clinical services for the pharmaceuticals industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Medivant Healthcare	Exact match	Chandler, AZ, United StatesHQ recorded Sep 17, 2026	51-200	158 contacts →
	Exact match “Uniquely poised as a world class FDA registered outsourcing pharmaceutical manufacturer, Medivant offers the best in the industry when it comes to reliability and management…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Biospectra, INC	Exact match	Bangor, PA, United StatesHQ recorded Sep 17, 2026	201-500	152 contacts →
	Exact match “BioSpectra Inc.(BSI), is a privately-owned manufacturer of premium pharmaceutical ingredients and bulk, cGMP fine chemicals, in service to many leading BioPharma companies around…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Spectrum Pharmaceuticals, INC	Exact match	Lake Forest, IL, United StatesHQ recorded Sep 17, 2026	51-200	150 contacts →
	Exact match “Spectrum Pharmaceuticals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Nexgen Pharma	Exact match	Irvine, CA, United StatesHQ recorded Sep 17, 2026	201-500	142 contacts →
	Exact match “Nexgen Pharma is a specialty pharmaceutical company that provides development and manufacturing services for Rx, OTC drugs as well as custom dietary supplement formulations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Avet Pharmaceuticals INC	Exact match	East Brunswick Township, NJ, United StatesHQ recorded Sep 17, 2026	201-500	141 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Apicore Pharmaceuticals	Exact match	East Brunswick, NJ, United StatesHQ recorded Sep 17, 2026	501-1,000	141 contacts →
	Exact match “Apicore LLC, a wholly owned subsidiary of RK Pharma Inc is a leading process R&D and API manufacturing service provider for the worldwide pharmaceutical industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Ascent Pharmaceuticals, INC	Exact match	Central Islip, NY, United StatesHQ recorded Sep 17, 2026	201-500	116 contacts →
	Exact match “Ascent Pharmaceuticals, Inc, headquartered in Central Islip, New York, is a leading generic pharmaceutical company specializing in the development, manufacturing, and analysis of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Chartwell Pharmaceuticals	Exact match	Congers, NY, United StatesHQ recorded Sep 17, 2026	51-200	115 contacts →
	Exact match “Chartwell Pharmaceuticals is a US-based, full-service manufacturing, packaging, laboratory, and related supply chain services organization with multiple manufacturing locations in…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Lilly Usa, LLC	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 17, 2026	51-200	107 contacts →
	Exact match “Lilly USA, LLC is a pharmaceuticals company based out of Lilly Corporate Center, Indianapolis, Indiana, United States.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Scientific Protein Laboratories, LLC	Exact match	Waunakee, WI, United StatesHQ recorded Sep 17, 2026	201-500	104 contacts →
	Exact match “Scientific Protein Laboratories (SPL) has been a leading global supplier of high quality active pharmaceutical ingredients (APIs) for over three decades.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Wiley Companies	Exact match	Coshocton, OH, United StatesHQ recorded Sep 17, 2026	201-500	102 contacts →
	Exact match “Wiley Companies is an ISO 9001:2015 and FSSC certified custom chemicals and food ingredients manufacturer with facilities in Coshocton, OH, and New Albany, OH.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Puretek Corporation	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “PureTek Corporation is Southern California’s premier producer of outstanding pharmaceutical, nutritional and personal care products.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Freemen Nutra Group	Exact match	Edison, NJ, United StatesHQ recorded Sep 17, 2026	51-200	83 contacts →
	Exact match “Freemen Nutra Group is a manufacturer and worldwide distributor of ingredients and premixes for the nutraceutical, food, beverage, feed, pet and cosmetics industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Chemwerth INC	Exact match	Woodbridge, CT, United StatesHQ recorded Sep 17, 2026	51-200	81 contacts →
	Exact match “LEADING THE SUPPLY OF HIGH QUALITY GENERIC APIs 21st Century economic, social, technical and regulatory dynamics are dramatically changing the pharmaceutical world making it more…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Stauber	Exact match	Fullerton, CA, United StatesHQ recorded Sep 17, 2026	51-200	79 contacts →
	Exact match “Since 1969 STAUBER has consistently offered the finest quality ingredients to the nutritional, food, pharmaceutical, cosmetic and pet care industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “pharmaceutical ingredient manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 307 pharmaceutical ingredient manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 2,953 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Pharmaceutical ingredient manufacturers based in the United States at a glance

As of Sep 17, 2026

31.9%Verified-email coverage

30.1Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Charlotte

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

124

51-200

201-500

501-1,000

1,001-5,000

10001+

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 307 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United States whose business descriptions match “pharmaceutical ingredient manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 2,953 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “pharmaceutical ingredient manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many pharmaceutical ingredient manufacturers are there based in the United States?

RevenueBase identified 307 company matches for pharmaceutical ingredient manufacturers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Veranova tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most pharmaceutical ingredient manufacturers?

Charlotte leads with 5 company records, followed by New York (5) and Somerset (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,953 professional contacts with verified work emails tracked across these 307 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 307 pharmaceutical ingredient manufacturers based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Pharmaceutical ingredient manufacturers by geography

Browse the directory

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 SmartSearch, 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.