Here is a list of over 180 custom antibody suppliers with a brief categorization of the kind of services that they provide. Definitions of descriptors are as follows:

1. peptides - indicates that a company will synthesize peptide haptens. Visit the Peptide Resource Page if you are interested in custom peptide synthesis.
2. recombinant proteins - indicates that a company will express recombinant protein immunogens
3. DNA - indicates the company can perform cDNA immunizations to generate antibodies

If you are interested in catalog antibodies, see our antibody supplier page. If you are interested in the large scale or regulatory compliant production of antibodies, see our large-scale antibody production page.

If you would like to have your company added to the list or update/correct any information, please click here.

1. BioGenes - (monoclonal, polyclonal, immunoassays) - BioGenes gives a guarantee for monoclonal and polyclonal antibodies. They develop stable monoclonal antibody cell lines within 3-4 months and need just 0.2 mg of protein for the whole development. All results and clones become the property of the customer. They also offer contract services for development, validation and production of immunoassays.

2. 21st Century Biochemicals - (polyclonal, peptides)

3. Abbiotec - polyclonal, peptides)

4. AbboMax - (monoclonal, polyclonal, peptides)

5. AbD Serotec - (monoclonal, recombinant proteins) - in vitro generation using HuCAL (Human Combinatorial Antibody Library) technology developed originally by MorphoSys 

6. ABexpress Lab - (monoclonal)

7. AbFrontier - (monoclonal, polyclonal, recombinant proteins, peptides)

8. Abgent - (monoclonal, polyclonal, peptides) - phosphospecific polyclonal antibody production

9. Abmart - (monoclonal, polyclonal, peptides, recombinant proteins) - custom “application guaranteed” monoclonal antibodies for ELISA, WB, IP, IF, ICC, IHC applications, including protein modification-specific and small molecule antibodies.

10. AbMax Biotechnology Company - (monoclonal, polyclonal)

11. Abnova - (monoclonal, polyclonal, peptides, recombinant proteins) - Abnova develops antibodies in mice and rabbit with full-length proteins.  Protein production is based on eukaryotic expression apparatus of in vitro wheat germ and mammalian systems.  Antibody pairing service is also available for your quantitative needs.

12. Abpro - (monoclonal, polyclonal, recombinant proteins) - a service to obtain custom hybridomas in less than 2 months (High Throughput Protocol™) is offered

13. Absea Biotechnology - (monoclonal, polyclonal, peptides, peptides) - rat and murine monoclonals. Antibody conjugation and purification, Fab or F(ab')2 fragment production, and sandwich ELISA development as well.

14. ABSinobio - (polyclonal, recombinant proteins)

15. Adar Biotech - (monoclonal, polyclonal, peptides) - monoclonal antibody development using a proprietary selection process which replaces HAT selection medium as well as chicken polyclonals

16. Advy Chemical - (polyclonal) - a custom antibody manufacturer based in Mumbai, India that specializes in goat polyclonal antibodies

17. Agro-Bio - (monoclonal, polyclonal) - chicken antibodies

18. AgriSera - (monoclonal, polyclonal, peptides) - hens (IgY)-, rabbits, and goats

19. AGTC Bioproducts - (polyclonal, peptides) - can produce 5-8 mls of pAbs in mice at titres similar to a rabbit. A choice can be made to go on to produce mAbs using the same mice.

20. Alpha Diagnostics - (monoclonal, polyclonal, peptides) - including complete protein sequence analysis, BLAST, and antigenic peptide selection

21. Alta Bioscience - (polyclonal, peptides)

22. AMS Biotechnology - (monoclonal, polyclonal, recombinant proteins, peptides) - including phospho specifice polyclonal antibody production

23. Anaspec - (monoclonal, polyclonal, peptides)

24. Anawa Trading Company - (polyclonal, peptides)

25. Antagene - (monoclonal, polyclonal, peptides)

26. Antibodies Incorporated - (monoclonal, polyclonal)

27. AntibodyBcn - (monoclonal, polyclonal, peptides) - rabbit monoclonals

28. Antibody Production Services - (monoclonal, polyclonal) - goat, sheep, chicken, donkey, cattle, rat and mouse polyclonal antibodies are available

29. Antibody Research Corporation - (monoclonal, polyclonal, peptides, DNA) - in vitro antibody production as well

30. Antibody Solutions - (monoclonal, polyclonal, peptides) - in vitro production

31. Antiserum Plus - (polyclonal) - specializing in sheep antiserum

32. Aves Lab - (polyclonal, peptide) - specializing in custom antibodies made in chickens (IgY). They offer peptide design and synthesis, IgY purification, affinity purification, primary antibody labeling, etc...

33. Avian Immunology - (polyclonal)- specializing in custom antibodies made in chickens (IgY).

34. BAM Biotech Company - (polyclonal, peptides) - rabbit and chicken antibodies

35. Beijing Protein Innovation - (polyclonal, monoclonal, recombinant proteins) - for the website in Chinese, click here.

36. Bethyl Laboratories - (polyclonal, peptides)

37. BioAtla - (monoclonal, polyclonal) - antibody development services include humanization and optimization for affinity (sub-nanomolar), stability, and expression.  Custom Fc and Fv optimization/production as well.

38. BioCarta - (polyclonal, monoclonal, recombinant proteins)

39. Bio-Express - (monoclonal) - custom fermentation and purification of monoclonal antibodies (mg - g amounts), low endotoxin, suited for animal studies

40. Biogenes - (monoclonal, polyclonal, peptides)

41. Biomatik - (monoclonal, polyclonal, peptides, recombinant proteins, DNA)

42. Bionexus - (monoclonal, polyclonal, peptides)

43. Bioo Scientific - (polyclonal, monoclonal, recombinant proteins) - including antigen design

44. Biosonda - (monoclonal, polyclonal)

45. Bio-Synthesis - (polyclonal, peptides) - their services include epitope prediction, carrier protein conjugation, antibody labeling, and antibody microarrays.  BSI holds an NIH Animal Welfare Assurance from the Office of Laboratory Animal Welfare for immunization and works with host animals under USDA license.

46. Biotem - (monoclonal, polyclonal, DNA) - custom hybridomas development can be achieved using a variety of immunization types: standard, substractive, in vitro, genetic. This French company also offers full range of other services are available including antibody purfication and modification, assay development, antibody characterization (e.g., affinity constant determination), and cell culture services.

47. Biotrend - (monoclonal, polyclonal, peptides)

48. Bioventix - (monoclonal, polyclonal) - specializing in sheep monoclonal antibodies in up to gram quantities

49. bio-WORLD - (monoclonal, polyclonal, peptides) - purification and conjugation with specific tags too

50. Brown Family Enterprises - (polyclonal, peptides)

51. Cambridge Research Biochemicals - (monoclonal, polyclonal, peptides) - also specializing in the fluorescent labelling of antibodies

52. Capralogics - (polyclonal) - high volume production of serums for research, discovery, and diagnostic applications. USDA certified "scrapie-free" goats dedicated for diagnostic antibody production.  They are a EU and NIH compliant collection facility.

53. Capra Science - (monoclonal, polyclonal, peptides) - Europe-based on-site production of custom antibodies and conjugation/purification services

54. CASLO - (polyclonal, peptides)

55. Cedarlane Laboratories -  (polyclonal, peptides) - antibodies can be produced in rabbits, sheep, guinea pigs, ferrets, goats, mice, rats,  and more 

56. Cell Essentials - (monoclonal, peptides) - Contract cell culture services are also available and include cell banking/storage, hybridoma rescue, and hybridoma recloning

57. Centre Lago - (polyclonal) - specializing in rabbit polyclonals

58. Charis Diagnostics - (monoclonal) - specializing in producing monoclonal antibodies to small molecules and assay development

59. Charles River Laboratories - (monoclonal, polyclonal, peptides) - specific-pathogen-free (SPF) animals are used with the intent to produce antibodies with minimal serum background signal

60. Cocalico Biologicals - (polyclonal) - USDA inspected and approved laboratory animal facilities

61. Covalab - (monoclonal, polyclonal, peptides)

62. Covance - (monoclonal, polyclonal)

63. Creative Biolabs - (monoclonal, polyclonal, peptides) - custom IgY production

64. Custom Monoclonals International - (monoclonal)

65. CytoMol - (monoclonal, polyclonal, peptides, recombinant proteins)

66. Davids Biotechnologie - (monoclonal, polyclonal)

67. DB Biotech - (rabbit clonal) - utilizes a new technology that produces high quality rabbit clonal monospecific antibodies, a pure immunoglobulin fraction that corresponds to a single clone of a B lymphocyte. The company claims the fraction recognizes a single linear epitope of an antigen and is therefore comparable to the specificity of a monoclonal antibody.

68. Deciphergen Biotechnology - (monoclonal, polyclonal, peptides)

69. Diatec - (monoclonal)

70. ECM Biosciences - (polyclonal, peptides) - specializing in custom rabbit polyclonal antibody services. The also offer services to develop phospho-specific antibodies, function-altering antibodies, and antibodies for various applications, such as western blot and immunocytochemistry.

71. EMBL Monoclonal Antibody Core Facility - (monoclonal)

72. Endocrine Technologies - (monoclonal, polyclonal)

73. EnoGene - (monoclonal, polyclonal, peptides)

74. Enzymax - (polyclonal) - fusion protein purification for antibody production

75. Epitomics - (monoclonal, polyclonal, peptides, recombinant) - RabMAbs (rabbitt monoclonal antibodies) and humanized RabMAbs

76. Epytop - (monoclonal, polyclonal, peptides)

77. Eurogentec - (polyclonal, peptides)

78. Exon Biosystems - (monoclonal) - generation of stable cell lines expressing recombinant antibodies for therapeutic use. They also specialize in hybridoma sequencing and antibody engineering.

79. First Phase Technologies - specializing in custom antibody and tissue microarrays. They use state of the art printing technologies to print your antibodies on diagnostic substrates.

80. Fusion Antibodies - (monoclonal, polyclonal, recombinant proteins) - scFv construction/manufacturing and Fab production

81. Gallus Immunotech -  (polyclonal, peptides) - specialzing in chicken antibodies. 

82. GEMAC - (monoclonal, polyclonal) - hapten-carrier conjugation services and experience in producing antisera to low molecular weight molecules

83. Genemed Synthesis - (monoclonal, polyclonal)

84. General Bioscience - (monoclonal, polyclonal, peptides)

85. Genosphere Biotechnologies - (polyclonal, peptides)

86. Genovac - (monoclonal, polyclonal, DNA)

87. GenScript  - (monoclonal, polyclonal, DNA, peptides) - GenScript guarantees an ELISA titer of 1:32,000 or better for polyclonal antibody and two positive clones for a monoclonal antibody if peptide antigens were designed, synthesized, and conjugated by GenScript. For qualified protein antigens, they guarantee positive Western blot results for both polyclonal and monoclonal antibodies. GenScript antibody services include recombinant antigen protein expression, antigen peptide design and synthesis, polyclonal and monoclonal antibody production, express antibody production, purification, conjugation, fragmentation, and immunoassay development.

88. Genway Biotech - (monoclonal, polyclonal, peptides, recombinant proteins)

89. Good Biotech - (polyclonal) - "the duck biofactory" - duck IgY antibodies

90. Gramsch Laboratories - (monoclonal, polyclonal, peptides)

91. Green Mountain Antibodies - (monoclonal, polyclonal, peptides) - projects have a manager assigned to assist you.  They also offer serum free antibody production, low endotoxin purification, specialized assay development, and cell culture services.

92. Harlan Bioproducts - (monoclonal, polyclonal)

93. Harlan UK - (monoclonal, polyclonal) - polyclonals produced in rats, mice, guinea pigs, hamsters, rabbits, chickens, goats, sheep and llama. Their monoclonal service includes hybridoma development and in vivo or in vitro production.

94. HyperOmics Farma - (polyclonal, recombinant proteins) - custom-made IgY primary antibodies and the supply of the complementary reagents

95. Imgenex - (monoclonal, polyclonal)

96. Immunechem - (polyclonal)

97. ImmunoGlobe Antikoerpertechnik - (polyclonal)

98. ImmunoKontact - (monoclonal, polyclonal, peptides)

99. ImmunoPrecise Antibodies - (monoclonal, polyclonal, peptides) - from immunization to cloned mAbs in 32 days (Rapid-Prime). 10 clones are provided per immunogen and rat mAbs are available.

100. Immunsystem - (polyclonal) - specializing in chicken antibodies

101. Inbio - (monoclonal, polyclonal)

102. Innovagen - (monoclonal, polyclonal, peptides)

103. Invitrogen - (polyclonal, peptide) - antibody purification, conjugation, and online status tracking using EvoTrackTM Online

104. InVivo Biotech - (monoclonal) - monoclonal antibodies can be produced under serum-free conditions thereby avoiding issues associated with serum containing processes

105. ISL (Immune Systems Ltd) - (monoclonal, polyclonal, peptides)

106. IVD Services - (polyclonal) - rabbits and chickens plus a breeding program to optimize antibody production

107. Jinsite - (monoclonal, polyclonal, peptides) - including phospho-specific antibody and antibody modification services

108. LAE Biotechnology Company - (monoclonal, polyclonal) - uses linear array technology (LAE) to produce antibodies (including antibodies against self) to submitted sequences without the need for customers to supply proteins or synthetic peptides

109. Lampire Biological Laboratories - (monoclonal, polyclonal) - in vitro production

110. Lee Laboratories - (polyclonal)

111. Leinco - (monoclonal, peptides) - specialities incude the CHO cell transgene expression of monoclonal antibodies and antibody development in Armenian hamsters for in vivo murine studies

112. LifeSpan Biosciences - (polyclonal, peptides) - specializing in the development of immunohistochemistry validated antibodies

113. LifeTein - (monoclonal, polyclonal)

114. Maine Biotechnology Services - (monoclonal, polyclonal, peptides) - Custom cGMP monoclonal and polyclonal antibody production & development, including in vitro and ascites production methods. Additional services include purification, affinity purification, and conjugation.

115. Mathison Immuno Scientific - (monoclonal)

116. Medicago - (monoclonal)

117. Medimabs - (monoclonal, peptides) - including complete protein sequence analysis, peptide design, and antibody purification

118. Meridian - (monoclonal, recombinant proteins)

119. MicroPharm - (polyclonal)

120. MilleGen - (polyclonal, peptides) - custom recombinant single chain variable fragments (scFv) antibodies as well

121. Mimotopes - (polyclonal, peptides) - they design, manufacture, and conjugate peptides for Ab production. Conjugated peptide libraries for Ab production can also be provided.

122. ModiQuest - (monoclonal, polyclonal, peptides) - polyclonal (rabbit and chicken) and mouse monoclonal.

123. Monash Antibody Technologies Facility - (monoclonal, peptides)

124. Moravian Biotechnology - (monoclonal, polyclonal, peptides)

125. Neoclone - (monoclonal) - monoclonals are produced using a retroviral method to immortalize which results in more stable cell lines since the resulting cells are not polyploid. Antibodies are produced more quickly (versus cell fusion) and up to 18 antibody cell lines can be provided for standard projects.

126. New England Peptides - (polyclonal, peptides) - epitope mapping, antigen design, bioinformatics, BLAST, etc...

127. Operon - (monoclonal, recombinant proteins) - including F(ab) / F(ab')2 production

128. Open Biosystems - (monoclonal, polyclonal, peptides)

129. Orbigen - (monoclonal, polyclonal, peptides)

130. Pacific Immunology - (polyclonal, peptides)

131. Panigen - (monoclonal, polyclonal)

132. Paratopes -(monoclonal) - supplier of custom made rat and mouse derived monoclonal antibodies. Post translational modification specific anti-peptide monoclonals are also a specialty.

133. P.A.R.I.S - (monoclonal, polyclonal) - also safe cell banking, purification, labeling, and fragmentation

134. Phoenix Pharmaceuticals - (polyclonal, peptides)

135. Pi Proteomics - (polyclonal, peptides)

136. Precision Antibody - (monoclonal, polyclonal) - custom monoclonal antibodies in less than 40 days

137. PRF&L - (monoclonal, polyclonal)

138. Promab Biotechnologies - (monoclonal) - recombinant protein production and hybridoma cells as well

139. Proteintech Group - (monoclonal, polyclonal, peptides, recombinant proteins)

140. Primorigen - (monoclonal) - immunoassay and microarray development/manufacturing also

141. Proteogenix - (monoclonal, polyclonal, peptides, DNA)

142. ProSci - (monoclonal, polyclonal, peptides) - free antigen design service for peptides

143. PX'Therapeutics - (monoclonal, DNA)

144. QED Biosciences - (monoclonal, polyclonal, DNA) - anti-idiotype, pharmacologically active, and bifunctional antibody production as well

145. Quality Bioresources - (polyclonal)

146. RD-Biotech - (monoclonal, polyclonal) - ascites and in vitro monoclonal antibody production, recombinant protein expression in bacteria and mammalian cells, purification, conjugation, and banking services

147. Rockland - (monoclonal, polyclonal, peptides, DNA) - tissue culture mAb production and DNA based immunizations (with vector construction)

148. SACRI Antibody Services - (monoclonal, polyclonal, peptides) - standard hosts including chickens. Antigen design is also available.

149. Saint Louis University Hybridoma Development Service - (monoclonal)

150. Saurav Chemicals Limited (SCL Biosciences) - (monoclonal, polyclonal, peptides)

151. Severn Biotech - (polyclonal, peptides) - Polyclonals can be produced in rats, mice, guinea pigs, hamsters, rabbits, chickens, goats, sheep, and llama. ELISA analysis of pre-screened serum and titres are also available.

152. Sigma-Aldrich - (polyclonal, peptides)

153. Signalway Antibody Company - - (polyclonal, peptides) - specializing in the custom production of phospho-specific-antibodies

154.  Sino Biological - (monoclonal, polyclonal, peptides, recombinant proteins) - rabbit monoclonal and polyclonal antibodies

155. Southern Biotechnology Associates - (monoclonal, polyclonal, peptides)

156. Spring Valley Laboratories - (monoclonal, polyclonal, peptides) - polyclonal production in rabbits, mice, rats, guinea pigs, ferrets, sheep, and goats

157. Statens Serum Institut - (monoclonal, polyclonal)

158. Storkbio - (monoclonal, polyclonal, peptides)

159. Stage I Diagnostics - (monoclonal, recombinant proteins) - murine antibodies with both full-length and partial recombinant proteins.  Protein production is conducted using the eukaryotic apparatus of an in vitro insect system. 

160. Strategic Diagnostics - (monoclonal, polyclonal, DNA) - peptide and immunogen design also

161. Synaptic Systems - (monoclonal, polyclonal, peptides) - development and production of customer-specific rat and mouse monoclonal antibodies and antibody production from customer hybridoma cell lines

162. Thermo Scientific  - (monoclonal, polyclonal, peptides, recombinant proteins) - formerly ABR - Affinity BioReagents

163. United States Biological - (monoclonal, polyclonal, peptides) - including conjugation services (e.g., to biotin, FITC, HRP, alkaline phosphatase, phycoerythrin, and colloidal gold)

164. Virusys - (monoclonal, polyclonal, peptides) - mouse, rabbit, chicken, goat, sheep, and llama monoclonals

165. Wanger Biotech - (monoclonal, polyclonal) - SPF certified animal facilities, laboratories, and instruments

166. Washington Biotechnology - (monoclonal, polyclonal, peptides)

167. YenZym - (polyclonal, peptides) - offering protein analysis/peptide design

168. Yes Biotech Laboratories - (monoclonal)

169. Yorkshire Bioscience - (monoclonal, polyclonal, peptides)