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Refeyn

Refeyn

Private
OxfordHealthcare & Life Scienceshttps://refeyn.com/

Last Round

Series B

Apr 11, 2022

Total Funding Raised

$99.93M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

Refeyn is a life sciences instrumentation company that develops, produces, and distributes mass photometry technology for the analysis of individual molecules in solution.

Sector

Healthcare & Life Sciences

Verticals

Biotech Equipment, Biotechnology, Drug Discovery

Business Model

B2B

Customer Profile

Hardware Sales, Data as a Service

AI Layer

Non-AI

Keywords

mass photometrybiologics analysisprotein characterizationantibody analysislabel-free analysisbiotech instrumentationmolecular massbiosimilar characterizationgene therapy analysisanalytical workflowprotein stabilitylab equipmentbenchtop instrumentsbiotech toolsaav analysis

Historical Pricing

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Caplight Momentum Score

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Refeyn Comparables

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Refeyn comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
NanoTemper Technologies
78%
Unchained Labs
76%
Nicoya Lifesciences Inc.
74%

Refeyn Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BApr 11, 2022
Series ANov 1, 2020
SeedMar 4, 2019
SeedJun 26, 2018

Key People

Founding team and executive leadership

Gerry Mackay

Chief Executive Officer

Executive Team

Refeyn Investors

Notable investors and investment history

Refeyn investors
InvestorRounds
Foresight Group Holdings LimitedSeries B
Horizons VenturesSeries A, Series B
Oxford Science EnterprisesSeries A, Series B, Seed
Northpond VenturesSeries A, Series B
University of OxfordSeed, Series A, Series B
Foresight Group LLPSeries A, Series B
Foresight Williams TechnologySeries A, Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Mar 18, 2026

    Launched the MyMass instrument for sample quality assessment.

  • Nov 5, 2025

    Company has grown to over 170 employees.

Refeyn Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Refeyn Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Refeyn's valuation, stock price, and market status.

Firmographic Details

HeadquartersOxford
Employee Range169
Year Founded2018
Last FundingApr 11, 2022

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