Company lists · Data refreshed September 2026

Top 25 Drug substance manufacturers based in the United States

RevenueBase identified 141 company matches for drug substance manufacturers associated with the United States as of September 2026 and tracks 6,059 professional contacts across them, including 1,684 with verified work emails. Charlotte is the largest hub.

This list covers company matches for drug substance 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 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
141Companies
6,059Contacts tracked
1,684Verified emails
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The 25 largest drug substance manufacturers based in the United States

Ranked by team size
Top 25 of 141 company matches for drug substance manufacturers 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 matchSt. Louis, MO, United StatesHQ recorded Sep 16, 2026201-500259 contacts →

Exact match

“Jost Chemical Co.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact 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
6Exact 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
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 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
9Exact 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
10Exact 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
11Exact matchWilmington, DE, United StatesHQ recorded Sep 16, 2026201-500148 contacts →

Exact match

“Noramco, headquartered in Wilmington, Delaware, is a global leader in the production of controlled substances for the pharmaceutical industry, for medicines used to treat…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact 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
13Exact 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
14Exact 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
15Exact matchEwing, NJ, United StatesHQ recorded Sep 16, 202611-5074 contacts →

Exact match

“Offering Seamless CMC Development Services Including Process Research & Development and Delivery of cGMP APIs”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchMenlo Park, CA, United StatesHQ recorded Sep 16, 202651-20071 contacts →

Exact match

“Antheia is the advanced biosynthesis company transforming pharmaceutical manufacturing and innovation for the 21st century.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchPortland, OR, United StatesHQ recorded Sep 16, 202611-5056 contacts →

Exact match

“Lacamas Laboratories manufactures and delivers high quality products at the best price possible, on time every time.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchPhillipsburg, NJ, United StatesHQ recorded Sep 16, 2026n/a53 contacts →

Exact match

“Pharm Ops Inc.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19Exact matchAlpharetta, GA, United StatesHQ recorded Sep 16, 202651-20044 contacts →

Exact match

“Our mission is to deliver quality products at affordable prices – bringing value to our customer base while providing savings and choice to patients nationwide.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20Exact matchNewark, DE, United StatesHQ recorded Sep 16, 202651-20044 contacts →

Exact match

“Wilmington PharmaTech (WPT) is a U.S-based Contract Research, Development, and Manufacturing Organization (CRDMO) providing end-to-end solutions for the pharmaceutical and…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchBethlehem, PA, United StatesHQ recorded Sep 16, 2026201-50041 contacts →

Exact match

“Agno Pharmaceuticals is a global CDMO supplying critical RSMs, intermediates, active pharmaceutical ingredients (APIs), highly potent APIs, sterile APIs, and sterile drug product…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22Exact matchStuart, FL, United StatesHQ recorded Sep 16, 2026n/a40 contacts →

Exact match

“Incorporated in 2019, Sancilio & Company is wholly owned by Dr.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchKannapolis, NC, United StatesHQ recorded Sep 16, 202611-5035 contacts →

Exact match

“Rapid drug development and patented advanced pharmaceutical manufacturing company providing essential medicines through scalable domestic API production.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchKalamazoo, MI, United StatesHQ recorded Sep 16, 202651-20032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchSan Diego, CA, United StatesHQ recorded Sep 16, 2026201-50031 contacts →

Exact match

“Pharmatek Laboratories, Inc.”

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

Showing 25 of 141 drug substance manufacturers based in the United States

See the full list, filter by size, metro and specialty, and access 1,684 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Drug substance manufacturers based in the United States at a glance

As of Sep 16, 2026
27.8%Verified-email coverage
43.0Average contacts per company
11-50Median size (employees)
3.5%Largest-city concentration · Charlotte
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
44
11-50
55
51-200
18
201-500
11
501-1,000
7
1,001-5,000
3
10001+
2

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 141 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 “drug substance 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 1,684 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 “drug substance manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many drug substance manufacturers are there based in the United States?

RevenueBase identified 141 company matches for drug substance 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 drug substance manufacturers?

Charlotte leads with 5 company records, followed by Wilmington (4) and Fairfield (3).

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 1,684 professional contacts with verified work emails tracked across these 141 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.