Company lists · Data refreshed September 2026

Top 25 Active pharmaceutical ingredients suppliers based in the United States

RevenueBase identified 316 company matches for active pharmaceutical ingredients suppliers associated with the United States as of September 2026 and tracks 8,857 professional contacts across them, including 2,897 with verified work emails. San Diego is the largest hub.

This list covers company matches for active pharmaceutical ingredients suppliers 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 16, 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 16, 2026 How this list was built
316Companies
8,857Contacts tracked
2,897Verified emails
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The 25 largest active pharmaceutical ingredients suppliers based in the United States

Ranked by team size
Top 25 of 316 company matches for active pharmaceutical ingredients suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchDevens, MA, United StatesHQ recorded Sep 16, 2026501-1,000574 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 16, 2026 · View company records in RevenueBase
2Exact matchRancho Cordova, CA, United StatesHQ recorded Sep 16, 20261,001-5,000540 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 16, 2026 · View company records in RevenueBase
3Exact matchWilmington, DE, United StatesHQ recorded Sep 16, 2026201-500304 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 16, 2026 · View company records in RevenueBase
4Exact matchConcord, OH, United StatesHQ recorded Sep 16, 202651-200237 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 16, 2026 · View company records in RevenueBase
5Exact matchNew Brunswick, NJ, United StatesHQ recorded Sep 16, 2026201-500232 contacts →

Exact match

“Spectrum Chemical Mfg.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchWhippany, NJ, United StatesHQ recorded Sep 16, 2026201-500219 contacts →

Exact match

“Halo Pharma is a leading provider of pharmaceutical services, including contract dosage form development, commercial manufacturing, and analytical services.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchYardley, PA, United StatesHQ recorded Sep 16, 20261,001-5,000184 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 16, 2026 · View company records in RevenueBase
8Exact matchNew Castle, DE, United StatesHQ recorded Sep 16, 202651-200182 contacts →

Exact match

“Adesis Inc.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchWilmington, NC, United StatesHQ recorded Sep 16, 2026201-500177 contacts →

Exact match

“QCL is science driven, quality focused, and responsive.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchNorth Augusta, SC, United StatesHQ recorded Sep 16, 2026501-1,000174 contacts →

Exact match

“AmbioPharm is a global custom synthetic peptide CDMO founded in 2005 and headquartered in North Augusta, South Carolina, USA specializing in developing highly efficient…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchNorwich, NY, United StatesHQ recorded Sep 16, 2026201-500174 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 16, 2026 · View company records in RevenueBase
12Exact matchEdison, NJ, United StatesHQ recorded Sep 16, 2026201-500169 contacts →

Exact match

“Founded in 2011, Global Pharma Tek (GPT) is a leading pharmaceutical conglomerate offering a wide range of services to the industry.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchBangor, PA, United StatesHQ recorded Sep 16, 2026201-500152 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 16, 2026 · View company records in RevenueBase
14Exact matchRosenberg, TX, United StatesHQ recorded Sep 16, 2026201-500147 contacts →

Exact match

“Extensive chemical synthesis, formulation, manufacturing, and technology expertise.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchEast Brunswick, NJ, United StatesHQ recorded Sep 16, 2026501-1,000141 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 16, 2026 · View company records in RevenueBase
16Exact matchEasley, SC, United StatesHQ recorded Sep 16, 2026201-500139 contacts →

Exact match

“Ortec is a custom chemical manufacturing and research company that helps our customers reach their market goals through our Technical Expertise, Quality Systems, Regulatory…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchMonmouth Junction, NJ, United StatesHQ recorded Sep 16, 20261,001-5,000122 contacts →

Exact match

“MedChemExpress (MCE) is a leading global supplier of life science reagents, dedicated to providing innovative solutions for scientific research and drug development.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchCentral Islip, NY, United StatesHQ recorded Sep 16, 2026201-500116 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 16, 2026 · View company records in RevenueBase
19Exact matchCongers, NY, United StatesHQ recorded Sep 16, 202651-200115 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 16, 2026 · View company records in RevenueBase
20Exact matchValdosta, GA, United StatesHQ recorded Sep 16, 202651-200110 contacts →

Exact match

“At CJB Industries, we deliver solutions to your chemical manufacturing challenges.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchWaunakee, WI, United StatesHQ recorded Sep 16, 2026201-500104 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 16, 2026 · View company records in RevenueBase
22Exact matchCoshocton, OH, United StatesHQ recorded Sep 16, 2026201-500102 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 16, 2026 · View company records in RevenueBase
23Exact matchGreenville, SC, United StatesHQ recorded Sep 16, 2026201-50082 contacts →

Exact match

“Ethox Chemicals, A Syntha Group Company Founded in 1938 by Fred Wilson, Sr.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchWoodbridge, CT, United StatesHQ recorded Sep 16, 202651-20081 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 16, 2026 · View company records in RevenueBase
25Exact matchNewtown, PA, United StatesHQ recorded Sep 16, 202651-20078 contacts →

Exact match

“Founded in 2014, SynSmart has made its name in chemistry services for early-stage discovery projects as well as collaborative scale-up and manufacturing support services.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 316 active pharmaceutical ingredients suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 2,897 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Active pharmaceutical ingredients suppliers based in the United States at a glance

As of Sep 16, 2026
32.7%Verified-email coverage
28.0Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · San Diego
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
108
11-50
116
51-200
53
201-500
19
501-1,000
12
1,001-5,000
5
10001+
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 316 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 “active pharmaceutical ingredients suppliers” 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 2,897 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 16, 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 “active pharmaceutical ingredients suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many active pharmaceutical ingredients suppliers are there based in the United States?

RevenueBase identified 316 company matches for active pharmaceutical ingredients suppliers 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 active pharmaceutical ingredients suppliers?

San Diego leads with 9 company records, followed by Wilmington (6) and Houston (4).

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 2,897 professional contacts with verified work emails tracked across these 316 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 16, 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 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.