Register · API makers
API Manufacturers
Active pharmaceutical ingredient producers, including the Indian and Chinese plants that supply most US generics and rarely appear in Western directories. 360 companies in United States, ordered by number of registered sites.
001
Cardinal Health 418, Inc.
United Statesanalysisapi manufacturecdmo
34
sites
817
products
0
patents
002
Merck & Co., Inc.
United States+6 moreanalysisapi manufacturecdmo
23
sites
0
products
0
patents
003
Catalent Pharma Solutions Inc.
United States+5 moreanalysisapi manufacturecdmo
22
sites
261
products
0
patents
004
Janssen Research & Development, L.L.C.
United States+8 moreanalysisapi manufacturecdmo
20
sites
0
products
0
patents
005
Patheon Manufacturing Services LLC
United States+8 moreanalysisapi manufacturecdmo
19
sites
303
products
0
patents
006
Baxter Healthcare CorporationShortage
United States+8 moreanalysisapi manufacturecdmo
16
sites
413
products
44
patents
007
AstraZeneca PLC
United States+4 moreanalysisapi manufacturecdmo
15
sites
150
products
343
patents
008
Lonza Biologics Inc
United States+6 moreanalysisapi manufacturecdmo
15
sites
80
products
0
patents
009
AbbVie Inc.
United States+4 moreanalysisapi manufacturecdmo
13
sites
129
products
464
patents
010
Sigma-Aldrich Corporation
United States+3 moreanalysisapi manufacturecdmo
13
sites
25
products
0
patents
011
Siegfried USA, LLC
United States+6 moreanalysisapi manufacturecdmo
12
sites
54
products
0
patents
012
The Procter & Gamble Manufacturing Company
United States+2 moreanalysisapi manufacturecdmo
11
sites
831
products
0
patents
013
Zoetis Inc
United States+5 moreanalysisapi manufacturecdmo
11
sites
29
products
0
patents
014
Pfizer IncShortage
United States+7 moreanalysisapi manufacturecdmo
11
sites
26
products
174
patents
015
Eli Lilly and Company
United States+4 moreanalysisapi manufacturecdmo
10
sites
189
products
388
patents
016
Wyeth Pharmaceuticals LLC, a subsidiary of Pfizer Inc.
United States+4 moreanalysisapi manufacturecdmo
10
sites
30
products
2
patents
017
Amgen, Inc
United States+3 moreanalysisapi manufacturecdmo
9
sites
105
products
64
patents
018
Genentech, Inc.
United States+3 moreanalysisapi manufacturecdmo
8
sites
93
products
124
patents
019
Bristol Myers Squibb CompanyShortage
United States+3 moreanalysisapi manufacturecdmo
8
sites
4
products
167
patents
020
Hospira, Inc.
United States+3 moreanalysisapi manufacturecdmo
7
sites
326
products
42
patents
021
Allergan, Inc.
United States+2 moreanalysisapi manufacturecdmo
7
sites
187
products
4
patents
022
AGC Biologics, Inc.
United States+4 moreanalysisapi manufacturecdmo
7
sites
12
products
0
patents
023
Fresenius Kabi USA, LLCShortage
United States+1 moreanalysisapi manufacturecdmo
6
sites
559
products
73
patents
024
Ecolab Inc.
United Statesanalysisapi manufacturecdmo
6
sites
103
products
0
patents
025
Eisai Inc.
United States+3 moreanalysisapi manufacturecdmo
6
sites
51
products
47
patents
026
Elanco US Inc.
United States+3 moreanalysisapi manufacturecdmo
6
sites
46
products
0
patents
027
BASF Corporation
United States+3 moreapi manufacture
6
sites
24
products
0
patents
028
AndersonBrecon (UK) Limited
United States+1 moreanalysisapi manufacturecdmo
6
sites
0
products
0
patents
029
FUJIFILM Corporation
United States+2 moreanalysisapi manufacturecdmo
6
sites
0
products
0
patents
030
SpecGx LLCShortage
United Statesanalysisapi manufacturecdmo
5
sites
236
products
0
patents
031
Genzyme Corporation
United States+3 moreanalysisapi manufacturecdmo
5
sites
45
products
20
patents
032
Bora Pharmaceutical Laboratories Inc.
United States+2 moreanalysisapi manufacturecdmo
5
sites
15
products
0
patents
033
KITE PHARMA, INC.
United States+1 moreanalysisapi manufacturecdmo
5
sites
3
products
0
patents
034
Solvias North America, LLC
United States+2 moreanalysisapi manufacture
5
sites
0
products
0
patents
035
Univar Solutions USA LLC
United Statesapi manufacturepackaging
5
sites
0
products
0
patents
036
Hikma Pharmaceuticals USA Inc.Shortage
United States+1 moreanalysisapi manufacturecdmo
4
sites
757
products
80
patents
037
Church & Dwight Co., Inc.
United States+1 moreapi manufacturecdmopackaging
4
sites
115
products
0
patents
038
Sterling Pharmaceutical Services, LLC
United States+2 moreanalysisapi manufacturecdmo
4
sites
103
products
0
patents
039
Gilead Sciences, Inc.
United States+2 moreanalysisapi manufacturecdmo
4
sites
50
products
533
patents
040
HOVIONE FARMACIENCIA, S.A.
United States+3 moreanalysisapi manufacturecdmo
4
sites
47
products
0
patents
041
Pacific Medical Industries Ltd
United States+1 moreanalysisapi manufacturecdmo
4
sites
41
products
0
patents
042
United Therapeutics Corporation
United Statesanalysisapi manufacturecdmo
4
sites
40
products
105
patents
043
Avantor Performance Materials, LLC
United States+2 moreanalysisapi manufacturelabelling
4
sites
33
products
0
patents
044
Polypeptide Laboratories Private Ltd
United States+3 moreanalysisapi manufacture
4
sites
20
products
0
patents
045
Advanced Pharmaceutical Services, Inc. Dba Affordable Quality Pharmaceuticals
United Statesapi manufacturecdmolabelling
4
sites
18
products
0
patents
046
Alchem International Private Ltd
United States+1 moreapi manufacturecdmo
4
sites
14
products
0
patents
047
ZECO, LLC
United Statesanalysisapi manufacturecdmo
4
sites
1
products
0
patents
048
Argenta US Manufacturing LLC
United States+2 moreanalysisapi manufacturecdmo
4
sites
0
products
0
patents
049
KBI Biopharma, Inc.
United States+1 moreanalysisapi manufacturecdmo
4
sites
0
products
0
patents
050
Shire Human Genetic Therapies, Inc.
United Statesanalysisapi manufacturecdmo
4
sites
0
products
0
patents
051
International Medication Systems, Ltd.
United Statesanalysisapi manufacturecdmo
3
sites
2,750
products
0
patents
052
Alk-Abello, Inc.
United States+2 moreanalysisapi manufacturecdmo
3
sites
412
products
8
patents
053
ProPharma Distribution, LLC.
United States+1 moreanalysisapi manufacturelabelling
3
sites
100
products
0
patents
054
Elementis Specialties (India) Private Limited
United States+2 moreanalysisapi manufacturepackaging
3
sites
69
products
0
patents
055
Endo USA, Inc.
United Statesanalysisapi manufacturecdmo
3
sites
67
products
38
patents
056
Biogen International GmbH
United States+1 moreanalysisapi manufacturecdmo
3
sites
50
products
58
patents
057
Adare Pharmaceuticals USA, Inc.
United States+1 moreanalysisapi manufacturecdmo
3
sites
49
products
0
patents
058
Curium US LLCShortage
United States+1 moreanalysisapi manufacturecdmo
3
sites
33
products
4
patents
059
Regeneron Pharmaceuticals, Inc.
United States+1 moreanalysisapi manufacturecdmo
3
sites
30
products
0
patents
060
GC Medical Equipment, Inc.
United States+1 moreanalysisapi manufacturecdmo
3
sites
14
products
0
patents
061
Scientific Protein Laboratories LLC
United Statesanalysisapi manufacture
3
sites
9
products
0
patents
062
Kindeva Drug Delivery L.P.
United States+1 moreanalysisapi manufacturecdmo
3
sites
7
products
0
patents
063
Pharmaron Manufacturing Services (UK) Limited
United States+2 moreanalysisapi manufacturecdmo
3
sites
2
products
0
patents
064
Cambridge Isotope Laboratories, Inc.
United Statesapi manufacture
3
sites
1
products
0
patents
065
Avista Pharma Solutions, Inc. dba Cambrex
United Statesanalysisapi manufacturecdmo
3
sites
0
products
0
patents
066
GEA Farm Technologies, Inc.
United Statesapi manufacturecdmo
3
sites
0
products
0
patents
067
Genus plc
United Statesanalysisapi manufacture
3
sites
0
products
0
patents
068
Giles Chemical
United Statesapi manufacturepackaging
3
sites
0
products
0
patents
069
MassBiologics
United Statesanalysisapi manufacturecdmo
3
sites
0
products
0
patents
070
West Agro, Inc.
United Statesanalysisapi manufacturecdmo
3
sites
0
products
0
patents
071
Apotheca Company
United Statesapi manufacturecdmolabelling
2
sites
110
products
0
patents
072
Samsung Biologics Co., Ltd.
United States+1 moreanalysisapi manufacturecdmo
2
sites
57
products
0
patents
073
Veranova, L.P.
United Statesanalysisapi manufacture
2
sites
52
products
0
patents
074
Gulbrandsen Technologies India Private Limited
United States+1 moreapi manufacture
2
sites
41
products
0
patents
075
HK Kolmar Canada Inc
United States+1 moreanalysisapi manufacturecdmo
2
sites
37
products
0
patents
076
Xttrium Laboratories, Inc.
United Statesapi manufacturecdmolabelling
2
sites
37
products
0
patents
077
HEC Pharm USA Inc.
United States+1 moreapi manufacturelabelling
2
sites
34
products
0
patents
078
Bachem Americas, Inc.
United Statesanalysisapi manufacture
2
sites
26
products
0
patents
079
Cosco International, Inc.
United Statesanalysisapi manufacturecdmo
2
sites
26
products
0
patents
080
Miyoshi America, Inc.
United States+1 moreapi manufacturelabellingpackaging
2
sites
24
products
0
patents
081
Amphastar France PharmaceuticalsShortage
United States+1 moreanalysisapi manufacturecdmo
2
sites
23
products
3
patents
082
BioMarin International Limited
United States+1 moreanalysisapi manufacturecdmo
2
sites
19
products
28
patents
083
Resolute Oil, LLC
United Statesapi manufacturepackaging
2
sites
18
products
0
patents
084
J.M. Huber Micropowders, Inc.
United Statesapi manufacture
2
sites
10
products
0
patents
085
Indivior Inc.
United States+1 moreanalysisapi manufacturecdmo
2
sites
9
products
57
patents
086
Agilent Technologies, Inc.
United Statesanalysisapi manufacture
2
sites
8
products
0
patents
087
Sage Pharmaceuticals Inc
United States+1 moreapi manufacturecdmo
2
sites
7
products
1
patents
088
Niagara Pharmaceuticals Inc.
United States+1 moreapi manufacturecdmo
2
sites
7
products
0
patents
089
Aurorium LLC
United Statesapi manufacture
2
sites
6
products
0
patents
090
Bamboo US BidCo LLC
United States+1 moreanalysisapi manufacturecdmo
2
sites
6
products
0
patents
091
Particle Dynamics dba Codis
United Statesanalysisapi manufacturecdmo
2
sites
6
products
0
patents
092
Moderna US, Inc.
United States+1 moreanalysisapi manufacture
2
sites
5
products
0
patents
093
Alnylam Pharmaceuticals, Inc.
United Statesanalysisapi manufacturecdmo
2
sites
4
products
48
patents
094
Morton Salt, Inc.
United Statesapi manufacture
2
sites
4
products
0
patents
095
Nitto Denko Avecia Inc.
United Statesapi manufacture
2
sites
4
products
0
patents
096
Vericel Corporation
United Statesanalysisapi manufacturecdmo
2
sites
4
products
0
patents
097
BioSpectra Inc.
United Statesanalysisapi manufacturecdmo
2
sites
3
products
0
patents
098
ISP Chemicals LLC
United Statesapi manufacture
2
sites
3
products
0
patents
099
Kobo Products, Inc.
United States+1 moreanalysisapi manufacture
2
sites
3
products
0
patents
100
Arkema, Inc
United Statesapi manufacture
2
sites
2
products
0
patents
Page 1 / 4
Provenance
Membership of this category is derived from the operations each establishment is registered for in the FDA Drug Establishments Current Registration Site, not from how a company describes itself. A company appears here because at least one of its sites carries the corresponding registered operation. Nobody can pay to be added.