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Protein Discovery
Sample preparation technologies for mass spectrometry analysis
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 dataAt 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
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| 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 | — |
Growth signals
Latest recorded traffic for Protein Discovery is 150 monthly website visits.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
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
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Protein Discovery on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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