custom peptide production

Custom Peptide Production - Celebrating 15 years!


Custom Peptide Synthesis

New England Peptide is a leading global manufacturer of high quality custom peptides. We have successfully synthesized tens of thousands of peptides for the scientific community and have consistently met the highest standards of quality, service, and technical expertise.

Each peptide is analyzed using our proprietary software, PepTrend©, and is shipped with detailed quality control documentation including an HPLC trace, Mass Spec, and a Certificate of Analysis. Custom peptide synthesis is carried out using an assortment of state-of-the-art instrumentation in our 10,000 square foot facility. As a peptide manufacturer, we also have the capability to perform a wide variety of chemistries, such as: solid phase peptide synthesis, solution phase synthesis, glycochemistry, small molecule synthesis and high throughput synthesis. Peptide production is rapid. Most custom peptide orders are shipped in 2 to 3 weeks!


Peptide Capabilities

  • Personalized consultation with experienced peptide and immunology experts
  • Peptides from 2 to 120 Amino Acids
  • Scales from Nanomole to Milligram to Gram to Kilogram
  • Purities from crude to >98%
  • Solid and Solution Phase Chemistry
  • Phospho Peptides: Phospho Serine, Threonine, and Tyrosine
  • Cyclic Peptides - Cys to Cys, Head to Tail, Internal Lactam
  • Stapled peptides
  • Special Modifications including: Phosphorylation, Fluorescein, Glycosylation, PEGylation, Rhodamine, AMC, pNA, Biotin, boronic amino acids, d-amino acids, stable isotopes, EDANS, Dabsyl, Dansyl, Abz, thiolactic acids, and many others
  • High Throughput Synthesis



Large Scale Peptide Production


NEP can produce peptides from a single milligram to hundreds of grams. Our team has the experience and we have the technology to scale with your needs.


New PepScale™ Synthesizer Facilitates Cost-effective Scale-up


NEP introduces its new proprietary PepScale™ synthesizer for faster and more cost-efficient peptide scale-up and process development projects.


Optimized for tens of grams, it provides the flexibility required for development work, as well as incorporating efficiencies and productivity to benefit projects in early stage clinical development and API scale-up.


•    Faster and more cost-efficient peptide scale-up

•    Ideal for process development projects as well as early stage clinical development and API scale

•    Optimized for tens of grams

•    Minimizes opportunities for human error


The PepScale™ synthesizer was designed and built by our engineers and chemists for in-house use. It incorporates the company’s extensive chemistry knowledge at both a research and preclinical level. Automation enables cost and time efficiencies and minimizes opportunities for human error.


Our PepScale™ synthesizer, combined with our R & D team’s extensive experience, makes NEP the ideal partner for seamless scale-up from research and discovery through early stage development, including preclinical efforts.


For more information on scaling up your peptide production, please call our business development group at 888-343-5974 or email