Company lists · Data refreshed September 2026
Top 25 Custom synthesis companies based in the United States
RevenueBase identified 343 company matches for custom synthesis companies associated with the United States as of September 2026 and tracks 14,589 professional contacts across them, including 4,906 with verified work emails. San Diego is the largest hub.
This list covers company matches for custom synthesis companies 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 19, 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.
The 25 largest custom synthesis companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,294 contacts → | ||||
Exact match “Cambrex is a leading global contract development and manufacturing organization (CDMO) that provides drug substance development and manufacturing across the entire drug lifecycle…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 603 contacts → | ||||
Exact match “Oligonucleotides are giving rise to a new generation of therapeutics-and Nitto Avecia is helping lead the way.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 401 contacts → | ||||
Exact match “Every day, our customers bring us their toughest chemistry challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 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 19, 2026 · View company records in RevenueBase | |||||
| 7 | 232 contacts → | ||||
Exact match “Spectrum Chemical Mfg.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 219 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 19, 2026 · View company records in RevenueBase | |||||
| 9 | 182 contacts → | ||||
Exact match “Adesis Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 174 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 19, 2026 · View company records in RevenueBase | |||||
| 11 | 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 19, 2026 · View company records in RevenueBase | |||||
| 12 | 147 contacts → | ||||
Exact match “Extensive chemical synthesis, formulation, manufacturing, and technology expertise.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 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 19, 2026 · View company records in RevenueBase | |||||
| 14 | 139 contacts → | ||||
Exact match “NJ Bio Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 139 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 19, 2026 · View company records in RevenueBase | |||||
| 16 | 112 contacts → | ||||
Exact match “Founded in 1996 J-STAR Research, Inc.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 112 contacts → | ||||
Exact match “Camco Chemical brings over 65 years of expertise as a trusted leader in chemical contract manufacturing, contract packaging, and supply chain solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 110 contacts → | ||||
Exact match “At CJB Industries, we deliver solutions to your chemical manufacturing challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 103 contacts → | ||||
Exact match “We are an elite family of companies that solve complex problems for our customers through specialty chemical manufacturing and tolling.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 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 19, 2026 · View company records in RevenueBase | |||||
| 21 | 82 contacts → | ||||
Exact match “Ethox Chemicals, A Syntha Group Company Founded in 1938 by Fred Wilson, Sr.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 79 contacts → | ||||
Exact match “Arzeda, The Protein Design Company™, is a synthetic biology company that creates novel proteins, enzymes and specialty chemical products that compete on performance, cost and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 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 19, 2026 · View company records in RevenueBase | |||||
| 24 | 76 contacts → | ||||
Exact match “CSBio is a leading peptide and peptide synthesizer manufacturing company located in Silicon Valley, California.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 75 contacts → | ||||
Exact match “Regis Technologies, Inc.” Recorded in the RevenueBase company graph · Sep 19, 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 “custom synthesis companies”. 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 343 custom synthesis companies based in the United States
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Custom synthesis companies based in the United States at a glance
As of Sep 19, 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 343 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 “custom synthesis companies” 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 4,906 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 19, 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 “custom synthesis companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many custom synthesis companies are there based in the United States?
RevenueBase identified 343 company matches for custom synthesis companies 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?
Cambrex tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most custom synthesis companies?
San Diego leads with 18 company records, followed by Wilmington (8) and New York (7).
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 4,906 professional contacts with verified work emails tracked across these 343 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 343 custom synthesis companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Custom synthesis companies by geography
- Custom synthesis companies based in Ahmedabad, India
- Custom synthesis companies based in Hyderabad, India
- Custom synthesis companies based in Mumbai, India
- Custom synthesis companies based in Canada
- Custom synthesis companies based in China
- Custom synthesis companies based in France
- Custom synthesis companies based in Germany
- Custom synthesis companies based in India
- Custom synthesis companies based in Italy
- Custom synthesis companies based in Spain
- Custom synthesis companies based in Switzerland
- Custom synthesis companies based in the United Kingdom
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Custom synthesis companies based in Ahmedabad, India
- Custom synthesis companies based in Hyderabad, India
- Custom synthesis companies based in Mumbai, India
- Custom synthesis companies based in Canada
- Custom synthesis companies based in China
- Custom synthesis companies based in France
Company intelligence · public preview
Top 25 custom synthesis companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 343 matching company records for custom synthesis companies based in the United States, with 14,589 tracked contacts and 4,906 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 custom synthesis companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Cambrexcambrex.comHQ: East Rutherford, NJ, United StatesReported employees: 1,001-5,000 | East Rutherford, NJ, United States | 1,001-5,000 | Exact match | 1,294 contacts → |
“Cambrex is a leading global contract development and manufacturing organization (CDMO) that provides drug substance development and manufacturing across the entire drug lifecycle…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nitto Aveciaavecia.com HQ: Milford, MA, United StatesReported employees: 501-1,000 | Milford, MA, United States | 501-1,000 | Exact match | 603 contacts → |
“Oligonucleotides are giving rise to a new generation of therapeutics-and Nitto Avecia is helping lead the way.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Veranovaveranova.comHQ: Devens, MA, United StatesReported employees: 501-1,000 | Devens, MA, United States | 501-1,000 | Exact match | 574 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  SK Pharmtecoskpharmteco.comHQ: Rancho Cordova, CA, United StatesReported employees: 1,001-5,000 | Rancho Cordova, CA, United States | 1,001-5,000 | Exact match | 540 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Monument Chemicalmonumentchemical.com HQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 401 contacts → |
“Every day, our customers bring us their toughest chemistry challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Olon USAolon-usa.comHQ: Concord, OH, United StatesReported employees: 51-200 | Concord, OH, United States | 51-200 | Exact match | 237 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Spectrum Chemical Mfg. Corpspectrumchemical.comHQ: New Brunswick, NJ, United StatesReported employees: 201-500 | New Brunswick, NJ, United States | 201-500 | Exact match | 232 contacts → |
“Spectrum Chemical Mfg.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Halo Pharmaceutical, INChalopharma.comHQ: Whippany, NJ, United StatesReported employees: 201-500 | Whippany, NJ, United States | 201-500 | Exact match | 219 contacts → |
“Halo Pharma is a leading provider of pharmaceutical services, including contract dosage form development, commercial manufacturing, and analytical services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Adesis, INCadesisinc.comHQ: New Castle, DE, United StatesReported employees: 51-200 | New Castle, DE, United States | 51-200 | Exact match | 182 contacts → |
“Adesis Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ambiopharmambiopharm.comHQ: North Augusta, SC, United StatesReported employees: 501-1,000 | North Augusta, SC, United States | 501-1,000 | Exact match | 174 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Biospectra, INCbiospectra.usHQ: Bangor, PA, United StatesReported employees: 201-500 | Bangor, PA, United States | 201-500 | Exact match | 152 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Seatexseatexcorp.com HQ: Rosenberg, TX, United StatesReported employees: 201-500 | Rosenberg, TX, United States | 201-500 | Exact match | 147 contacts → |
“Extensive chemical synthesis, formulation, manufacturing, and technology expertise.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Apicore Pharmaceuticalsapicore.comHQ: East Brunswick, NJ, United StatesReported employees: 501-1,000 | East Brunswick, NJ, United States | 501-1,000 | Exact match | 141 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  NJ Bio, INCnjbio.comHQ: Princeton, NJ, United StatesReported employees: 51-200 | Princeton, NJ, United States | 51-200 | Exact match | 139 contacts → |
“NJ Bio Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Ortec INCortecinc.comHQ: Easley, SC, United StatesReported employees: 201-500 | Easley, SC, United States | 201-500 | Exact match | 139 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | J-Star Research, INCjstar-research.com HQ: South Plainfield, NJ, United StatesReported employees: 51-200 | South Plainfield, NJ, United States | 51-200 | Exact match | 112 contacts → |
“Founded in 1996 J-STAR Research, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Camco Chemicalcamco-chem.com HQ: Florence, KY, United StatesReported employees: 201-500 | Florence, KY, United States | 201-500 | Exact match | 112 contacts → |
“Camco Chemical brings over 65 years of expertise as a trusted leader in chemical contract manufacturing, contract packaging, and supply chain solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | CJB Industries, INCcjbindustries.com HQ: Valdosta, GA, United StatesReported employees: 51-200 | Valdosta, GA, United States | 51-200 | Exact match | 110 contacts → |
“At CJB Industries, we deliver solutions to your chemical manufacturing challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ascent Chemicalsascentchem.comHQ: Schaumburg, IL, United StatesReported employees: 51-200 | Schaumburg, IL, United States | 51-200 | Exact match | 103 contacts → |
“We are an elite family of companies that solve complex problems for our customers through specialty chemical manufacturing and tolling.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Wiley Companieswileyco.com HQ: Coshocton, OH, United StatesReported employees: 201-500 | Coshocton, OH, United States | 201-500 | Exact match | 102 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ethox Chemicalsethox.com HQ: Greenville, SC, United StatesReported employees: 201-500 | Greenville, SC, United States | 201-500 | Exact match | 82 contacts → |
“Ethox Chemicals, A Syntha Group Company Founded in 1938 by Fred Wilson, Sr.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Arzedaarzeda.comHQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 79 contacts → |
“Arzeda, The Protein Design Company™, is a synthetic biology company that creates novel proteins, enzymes and specialty chemical products that compete on performance, cost and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Synsmartsynsmart.in HQ: Newtown, PA, United StatesReported employees: 51-200 | Newtown, PA, United States | 51-200 | Exact match | 78 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  CSBIOcsbio.comHQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 76 contacts → |
“CSBio is a leading peptide and peptide synthesizer manufacturing company located in Silicon Valley, California.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Regis Technologiesregistech.com HQ: Morton Grove, IL, United StatesReported employees: 51-200 | Morton Grove, IL, United States | 51-200 | Exact match | 75 contacts → |
“Regis Technologies, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 343 company matches
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Custom synthesis companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
342 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 343 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for custom synthesis companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many custom synthesis companies did RevenueBase find based in the United States?
The saved snapshot records 343 matching company records, 14,589 tracked contacts and 4,906 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Custom synthesis companies by geography
- Custom synthesis companies based in Ahmedabad, India
- Custom synthesis companies based in Hyderabad, India
- Custom synthesis companies based in Mumbai, India
- Custom synthesis companies based in Canada
- Custom synthesis companies based in China
- Custom synthesis companies based in France
- Custom synthesis companies based in Germany
- Custom synthesis companies based in India
- Custom synthesis companies based in Italy
- Custom synthesis companies based in Spain
- Custom synthesis companies based in Switzerland
- Custom synthesis companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 custom synthesis companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-synthesis-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Custom synthesis companies based in Ahmedabad, India
- Custom synthesis companies based in Hyderabad, India
- Custom synthesis companies based in Mumbai, India
- Custom synthesis companies based in Canada
- Custom synthesis companies based in China
- Custom synthesis companies based in France
Company intelligence · public preview
Top 25 custom synthesis companies based in the United States
RevenueBase records 343 matching company records for custom synthesis companies based in the United States, with 14,589 tracked contacts and 4,906 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 custom synthesis companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Cambrexcambrex.com HQ: East Rutherford, NJ, United StatesReported employees: 1,001-5,000 | East Rutherford, NJ, United States | 1,001-5,000 | Exact match | 1,294 contacts → |
“Cambrex is a leading global contract development and manufacturing organization (CDMO) that provides drug substance development and manufacturing across the entire drug lifecycle…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nitto Aveciaavecia.com HQ: Milford, MA, United StatesReported employees: 501-1,000 | Milford, MA, United States | 501-1,000 | Exact match | 603 contacts → |
“Oligonucleotides are giving rise to a new generation of therapeutics-and Nitto Avecia is helping lead the way.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Veranovaveranova.com HQ: Devens, MA, United StatesReported employees: 501-1,000 | Devens, MA, United States | 501-1,000 | Exact match | 574 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | SK Pharmtecoskpharmteco.com HQ: Rancho Cordova, CA, United StatesReported employees: 1,001-5,000 | Rancho Cordova, CA, United States | 1,001-5,000 | Exact match | 540 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Monument Chemicalmonumentchemical.com HQ: Indianapolis, IN, United StatesReported employees: 501-1,000 | Indianapolis, IN, United States | 501-1,000 | Exact match | 401 contacts → |
“Every day, our customers bring us their toughest chemistry challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Olon USAolon-usa.com HQ: Concord, OH, United StatesReported employees: 51-200 | Concord, OH, United States | 51-200 | Exact match | 237 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Spectrum Chemical Mfg. Corpspectrumchemical.com HQ: New Brunswick, NJ, United StatesReported employees: 201-500 | New Brunswick, NJ, United States | 201-500 | Exact match | 232 contacts → |
“Spectrum Chemical Mfg.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Halo Pharmaceutical, INChalopharma.com HQ: Whippany, NJ, United StatesReported employees: 201-500 | Whippany, NJ, United States | 201-500 | Exact match | 219 contacts → |
“Halo Pharma is a leading provider of pharmaceutical services, including contract dosage form development, commercial manufacturing, and analytical services.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Adesis, INCadesisinc.com HQ: New Castle, DE, United StatesReported employees: 51-200 | New Castle, DE, United States | 51-200 | Exact match | 182 contacts → |
“Adesis Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ambiopharmambiopharm.com HQ: North Augusta, SC, United StatesReported employees: 501-1,000 | North Augusta, SC, United States | 501-1,000 | Exact match | 174 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Biospectra, INCbiospectra.us HQ: Bangor, PA, United StatesReported employees: 201-500 | Bangor, PA, United States | 201-500 | Exact match | 152 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Seatexseatexcorp.com HQ: Rosenberg, TX, United StatesReported employees: 201-500 | Rosenberg, TX, United States | 201-500 | Exact match | 147 contacts → |
“Extensive chemical synthesis, formulation, manufacturing, and technology expertise.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Apicore Pharmaceuticalsapicore.com HQ: East Brunswick, NJ, United StatesReported employees: 501-1,000 | East Brunswick, NJ, United States | 501-1,000 | Exact match | 141 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | NJ Bio, INCnjbio.com HQ: Princeton, NJ, United StatesReported employees: 51-200 | Princeton, NJ, United States | 51-200 | Exact match | 139 contacts → |
“NJ Bio Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Ortec INCortecinc.com HQ: Easley, SC, United StatesReported employees: 201-500 | Easley, SC, United States | 201-500 | Exact match | 139 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | J-Star Research, INCjstar-research.com HQ: South Plainfield, NJ, United StatesReported employees: 51-200 | South Plainfield, NJ, United States | 51-200 | Exact match | 112 contacts → |
“Founded in 1996 J-STAR Research, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Camco Chemicalcamco-chem.com HQ: Florence, KY, United StatesReported employees: 201-500 | Florence, KY, United States | 201-500 | Exact match | 112 contacts → |
“Camco Chemical brings over 65 years of expertise as a trusted leader in chemical contract manufacturing, contract packaging, and supply chain solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | CJB Industries, INCcjbindustries.com HQ: Valdosta, GA, United StatesReported employees: 51-200 | Valdosta, GA, United States | 51-200 | Exact match | 110 contacts → |
“At CJB Industries, we deliver solutions to your chemical manufacturing challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ascent Chemicalsascentchem.com HQ: Schaumburg, IL, United StatesReported employees: 51-200 | Schaumburg, IL, United States | 51-200 | Exact match | 103 contacts → |
“We are an elite family of companies that solve complex problems for our customers through specialty chemical manufacturing and tolling.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Wiley Companieswileyco.com HQ: Coshocton, OH, United StatesReported employees: 201-500 | Coshocton, OH, United States | 201-500 | Exact match | 102 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Ethox Chemicalsethox.com HQ: Greenville, SC, United StatesReported employees: 201-500 | Greenville, SC, United States | 201-500 | Exact match | 82 contacts → |
“Ethox Chemicals, A Syntha Group Company Founded in 1938 by Fred Wilson, Sr.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Arzedaarzeda.com HQ: Seattle, WA, United StatesReported employees: 51-200 | Seattle, WA, United States | 51-200 | Exact match | 79 contacts → |
“Arzeda, The Protein Design Company™, is a synthetic biology company that creates novel proteins, enzymes and specialty chemical products that compete on performance, cost and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Synsmartsynsmart.in HQ: Newtown, PA, United StatesReported employees: 51-200 | Newtown, PA, United States | 51-200 | Exact match | 78 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CSBIOcsbio.com HQ: Menlo Park, CA, United StatesReported employees: 51-200 | Menlo Park, CA, United States | 51-200 | Exact match | 76 contacts → |
“CSBio is a leading peptide and peptide synthesizer manufacturing company located in Silicon Valley, California.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Regis Technologiesregistech.com HQ: Morton Grove, IL, United StatesReported employees: 51-200 | Morton Grove, IL, United States | 51-200 | Exact match | 75 contacts → |
“Regis Technologies, Inc.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 343 company matches
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Custom synthesis companies: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
342 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 343 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for custom synthesis companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many custom synthesis companies did RevenueBase find based in the United States?
The saved snapshot records 343 matching company records, 14,589 tracked contacts and 4,906 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Custom synthesis companies by geography
- Custom synthesis companies based in Ahmedabad, India
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- Custom synthesis companies based in Mumbai, India
- Custom synthesis companies based in Canada
- Custom synthesis companies based in China
- Custom synthesis companies based in France
- Custom synthesis companies based in Germany
- Custom synthesis companies based in India
- Custom synthesis companies based in Italy
- Custom synthesis companies based in Spain
- Custom synthesis companies based in Switzerland
- Custom synthesis companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 custom synthesis companies based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/custom-synthesis-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Custom synthesis companies based in Ahmedabad, India
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