Company lists · Data refreshed September 2026

Top 25 Pharmaceutical intermediate suppliers based in the United States

Name: Pharmaceutical intermediate suppliers 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 214 companies tracked

RevenueBase identified 214 company matches for pharmaceutical intermediate suppliers associated with the United States as of September 2026 and tracks 4,335 professional contacts across them, including 1,503 with verified work emails. San Diego is the largest hub.

This list covers company matches for pharmaceutical intermediate 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 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

214Companies

4,335Contacts tracked

1,503Verified emails

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The 25 largest pharmaceutical intermediate suppliers based in the United States

Ranked by team size

Top 25 of 214 company matches for pharmaceutical intermediate suppliers 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	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
2	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
3	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
4	Adesis, INC	Exact match	New Castle, DE, United StatesHQ recorded Sep 17, 2026	51-200	182 contacts →
	Exact match “Adesis Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	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
6	Global Pharma TEK	Exact match	Edison, NJ, United StatesHQ recorded Sep 17, 2026	201-500	169 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 17, 2026 · View company records in RevenueBase
7	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
8	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
9	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
10	Ethox Chemicals	Exact match	Greenville, SC, United StatesHQ recorded Sep 17, 2026	201-500	82 contacts →
	Exact match “Ethox Chemicals, A Syntha Group Company Founded in 1938 by Fred Wilson, Sr.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	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
12	Synsmart	Exact match	Newtown, PA, United StatesHQ recorded Sep 17, 2026	51-200	78 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 17, 2026 · View company records in RevenueBase
13	TCG Greenchem INC	Exact match	Ewing, NJ, United StatesHQ recorded Sep 17, 2026	11-50	74 contacts →
	Exact match “Offering Seamless CMC Development Services Including Process Research & Development and Delivery of cGMP APIs” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Antheia, INC	Exact match	Menlo Park, CA, United StatesHQ recorded Sep 17, 2026	51-200	71 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 17, 2026 · View company records in RevenueBase
15	Optima Chemical Group LLC	Exact match	Douglas, GA, United StatesHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Optima Chemical provides custom manufacturing and support services for advanced intermediates and fine chemicals to a variety of industries including Pharmaceutical…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Interchem Corporation	Exact match	Paramus, NJ, United StatesHQ recorded Sep 17, 2026	11-50	58 contacts →
	Exact match “For over 30 years, Interchem has been successfully locating sources of fine chemicals, intermediates, bulk actives, and sophisticated next generation compounds from all over the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Lacamas Laboratories	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	11-50	56 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 17, 2026 · View company records in RevenueBase
18	Pharm Ops, INC	Exact match	Phillipsburg, NJ, United StatesHQ recorded Sep 17, 2026	n/a	53 contacts →
	Exact match “Pharm Ops Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Chemscene	Exact match	Monmouth Junction, NJ, United StatesHQ recorded Sep 17, 2026	501-1,000	51 contacts →
	Exact match “About Us Headquartered in New Jersey, USA, ChemScence is a global leading manufacturer and supplier of building blocks and fine research chemicals.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Kingchem	Exact match	Allendale, NJ, United StatesHQ recorded Sep 17, 2026	501-1,000	49 contacts →
	Exact match “Kingchem is a vertically-integrated, global CDMO.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Wilmington Pharmatech Company LLC	Exact match	Newark, DE, United StatesHQ recorded Sep 17, 2026	51-200	44 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 17, 2026 · View company records in RevenueBase
22	Pharmablock USA , INC	Exact match	West Chester, PA, United StatesHQ recorded Sep 17, 2026	51-200	43 contacts →
	Exact match “PharmaBlock (USA), Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	A1 Biochem Labs	Exact match	Wilmington, NC, United StatesHQ recorded Sep 17, 2026	51-200	34 contacts →
	Exact match “A1 BioChem Labs (ABCL) is a Contract Research Organization with three locations located in Wilmington, North Carolina and Hyderabad, India.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Dipharma INC	Exact match	Kalamazoo, MI, United StatesHQ recorded Sep 17, 2026	51-200	32 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	SST Corporation	Exact match	Fairfield, NJ, United StatesHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “SST Corporation was founded in New York City in 1948, as a brokerage house for industrial chemical supply.” 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 intermediate suppliers”. 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 214 pharmaceutical intermediate suppliers based in the United States

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Pharmaceutical intermediate suppliers based in the United States at a glance

As of Sep 17, 2026

34.7%Verified-email coverage

20.3Average contacts per company

11-50Median size (employees)

4.7%Largest-city concentration · San Diego

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 214 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 intermediate 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 1,503 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 intermediate suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 214 company matches for pharmaceutical intermediate 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?

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

Which city has the most pharmaceutical intermediate suppliers?

San Diego leads with 10 company records, followed by Durham (4) and Paramus (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 1,503 professional contacts with verified work emails tracked across these 214 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.

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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.