Fundraising Fox

Peptobiotics

Entrepreneur First '20

Singapore, SG · Founded 2020 · 7 known investors

peptobiotics.com

Peptobiotics designs synthetic antimicrobial peptides intended to treat bacterial infections in farm animals. The peptides are made using cell-free production methods, which the company says avoids drug residues in animal products. The aim is to give livestock producers an alternative to conventional antibiotics and limit the spread of antimicrobial resistance.

Also known as Vaciome · Vaciome Pte. Ltd.

AgTechBiotech

Founders & leadership

Peptobiotics was founded in 2020 by Jonathan Bester.

JBJonathan Bester
Jonathan BesterinFounder · Chief Executive Officer

Investors · 7

Also in the syndicate · 4

FarmabaseHatch Blue (Blue Revolution Fund)leadPonderosa VCTrendlines Agrifood Fund

Company profile

researched Aug 2026

Peptobiotics, registered as Vaciome Pte. Ltd. and headquartered at 20 Biopolis Way, Centros Building, Singapore, develops recombinant antimicrobial peptides intended to replace antibiotics used in animal agriculture. The company describes its products as a new class of feed additives that inhibit pathogens and support gut health, feed conversion and growth with performance comparable to antibiotics but without driving bacterial resistance. It states its peptides have a mode of action that does not create resistance to themselves or to antibiotics, plus a host-dependent mechanism intended to improve intestinal health and feed uptake efficiency [0][2][3].

The underlying science draws on antimicrobial peptides, naturally occurring bacteria-inhibiting proteins that form a first line of immune defence in many organisms; the human genome alone is estimated to encode more than 100 distinct antimicrobial peptide genes. Commercialisation of such peptides has historically been limited by manufacturing cost, and Peptobiotics positions its contribution as biotechnology that lowers production costs for even complex peptides [6]. Products are formulated to remain active after feed pelleting and intestinal transit, allowing direct addition to feed or drinking water without encapsulation or spray coating, and are described as tasteless so that feed intake is unaffected [3].

The company is advancing both therapeutic and growth-promoting candidates across poultry, swine and shrimp aquaculture, with aquaculture as the initial commercial focus [2][5][6]. Coverage in November 2025 reported that Peptobiotics had delivered its first peptides to aquaculture facilities across Southeast Asia and that its lead product reached the market that year, while supply remained a bottleneck relative to demand [7].

Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Named to C&EN 10 Start-Ups to WatchNov 2025Featured in C&EN's annual 10 Start-Ups to Watch issue
Series A funding raisedApr 2024$6.2M
Shrimp survival rate improvement in pathogen-challenge trials vs untreatedNov 20253-10x higher survival rate in treated shrimp
Size of Hatch Blue Revolution Fund (lead investor)Apr 2024$81M
Startups outranked in Slingshot pitching competitionJan 20223,600 startups

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Timeline · 4

launches, deals, and filings
Jan 2025
Lead peptide product reaches market

Peptobiotics' lead product came on the market in 2025 and first peptides were delivered to aquaculture facilities across Southeast Asia; the company reported supply constraints against demand.

source ↗

Apr 2024
US$6.2M oversubscribed Series A

Series A led by Hatch's Blue Revolution Fund, with new investors SEEDS Capital, Seventure Partners, GrainCorp and Farmabase, and existing investors Trendlines Agrifood Fund, Ponderosa VC and The Yield Lab Asia Pacific. Proceeds earmarked for commercial-scale production volumes.

$6.2M source ↗

Jan 2022
First place in Slingshot Global Startup Pitching Competition

Finished first among more than 3,600 startups in Singapore's annual Slingshot global startup pitching competition.

source ↗

Jan 2021
Won Singapore's SINERGY Synthetic Biology Award / Sinergy seed grant

Peptobiotics won Singapore's SINERGY synthetic biology award/seed grant in 2021, under the company's then-name Vaciome.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Research sources · 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Peptobiotics do?
Singapore biotech making recombinant antimicrobial peptides as antibiotic replacements for aquaculture and livestock.
Who founded Peptobiotics?
Peptobiotics was founded by Jonathan Bester in 2020.
Who are Peptobiotics's investors?
Peptobiotics's investors include Entrepreneur First, The Yield Lab Asia Pacific, The Yield Lab.
Where is Peptobiotics headquartered?
Peptobiotics is headquartered in Singapore, SG.