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Exactmer

Dagenham, GB · 1 known investors

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Exactmer develops organic solvent-stable nanofiltration (OSN) membranes and a liquid-phase synthesis platform for pharmaceutical manufacturers, aimed at lower-cost and more scalable production of oligonucleotide and other advanced polymer therapeutics. It serves drug developers working with chemistries such as ASO, siRNA, peptides, ADC linkers, and PEGs.

Investors · 1

Companies House · registry record

View on Companies House ↗
Registered name
EXACTMER LIMITED
Company number
11109941
Status
Active
Company type
Private limited company
Incorporated
13 Dec 2017
Registered office
John Eccles House Robert Robinson Avenue, Oxford Science Park, Oxford, OX4 4GP
Nature of business (SIC)
20590 — Manufacture of other chemical products n.e.c.21100 — Manufacture of basic pharmaceutical products32990 — Other manufacturing n.e.c.
Accounts
last made up to 31 Dec 2025 · next due 30 Sept 2027
Confirmation statement
last made up to 6 Jul 2026 · next due 20 Jul 2027

Current officers · 3

  • Haddleton & Co Limited — corporate secretary, appointed 28 May 2020
  • Cristina Bertulli — director, appointed 26 May 2026
  • Andrew Guy Livingston — director, appointed 13 Dec 2017

Source: Companies House public register · retrieved 4 Oct 2026. Contains public sector information licensed under the Open Government Licence v3.0.

Frequently asked questions

What does Exactmer do?
Exactmer develops organic solvent-stable nanofiltration (OSN) membranes and a liquid-phase synthesis platform for pharmaceutical manufacturers, aimed at lower-cost and more scalable production of oligonucleotide and other advanced polymer therapeutics. It serves drug developers working with chemistries such as ASO, siRNA, peptides, ADC linkers, and PEGs.
Who are Exactmer's investors?
Exactmer's investors include Asahi Kasei Corporate Venture Capital.
Where is Exactmer headquartered?
Exactmer is headquartered in Dagenham, GB.