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Protein Discovery

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Sample preparation technologies for mass spectrometry analysis

Knoxville, United StatesFounded 2001Biotech & Life Sciences
Valuation $50–100M Last recorded · 2008
Total funding $10–50M Disclosed equity funding
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About Protein Discovery

Protein Discovery, Inc. was a life sciences company that developed and commercialized products for protein analysis using mass spectrometry. Founded in 2001 by Chuck Witkowski, the company, formerly known as Qgenics Biosciences, was privately held and focused on creating specialized sample preparation technologies. Its products were designed to assist academic, government, and pharmaceutical scientists by enabling more sensitive, accurate, and rapid analyses in their protein research and biotherapeutic development.

The company's product line included sample preparation systems and reagents aimed at simplifying complex processes. A key offering was the GELFREE® 8100 Fractionation System, an instrument that separates complex protein mixtures into liquid-phase molecular weight fractions. Another product, the Passport 1200 Sample Prep System, was developed to automate and simplify the preparation of biological samples for high-throughput mass spectrometry, particularly for clinical research. Additionally, Protein Discovery provided proprietary consumables like the PPS Silent Surfactant, a reagent designed to solubilize membrane proteins without interfering with subsequent analysis.

In November 2011, Protein Discovery, Inc. entered into a definitive merger agreement with Expedeon, Ltd., a UK-based provider of products for protein research, to form a combined entity aimed at being a global supplier of protein analysis and purification products. Following the merger, Chuck Witkowski joined the Expedeon Board of Directors. The company had received investments from firms including MB Venture Partners, Nashville Capital Network, Santé Ventures, and The Southern Appalachian Fund.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2001
Headquarters
Knoxville, United States
Open positions
None listed
Dealroom signal
23.0/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Biomarkers, Health Diagnostics, Biotech and Pharma, Techbio, DT and LS, science-based
Business model
Manufacturing
Client focus
b2c

Funding history

2 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITION✓Exit Nov 2011 $0 — Expedeon —
SERIES C✓Equity / VC Mar 2008 $10M $40M Nashville Capital Network · The Southern Appalachian Fund · Sante Ventures · MB Venture Partners —
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Growth signals

Protein Discovery website traffic

Latest recorded traffic for Protein Discovery is 150 monthly website visits.

Latest monthly visits150
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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

5 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series B and later4 investors entered at this stage

  • Nashville Capital Network
  • The Southern Appalachian Fund
  • Sante Ventures
  • MB Venture Partners

Other known investors1 additional known investor

  • Expedeon
Team profiled 1 named & role-tagged
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Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
🇺🇸 United States · Knoxville HQ
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Market sentiment

Posts on X, past 7 days

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