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Freevolt Technologies
Batteryless biometric smart cards powered by patented RF energy harvesting
About Freevolt Technologies
Freevolt Technologies, formerly Drayson Technologies, is a London-based technology company founded in 2013 by Lord (Paul) Drayson and Lady (Elspeth) Drayson. It develops proprietary, patented technology that harvests ambient radio frequency (RF) energy from NFC, cellular and Wi-Fi networks to power low-energy electronics without batteries, and owns more than 20 granted patents.
Its lead product is S-Key, a batteryless biometric smart card launched in 2022 for access control. The card stores the user's fingerprint on the card itself and is powered by the radio waves already emitted by existing card readers, so it adds two-factor biometric security without changes to reader infrastructure, central databases or extra software. Freevolt sells S-Key through resellers in the UK and abroad, is seeking licensees for its patent portfolio, and also carries out engineering consultancy projects for client companies. Other target uses for the technology include payments, cryptocurrency wallets and healthcare cards.
In 2014 the company acquired intellectual property from Imperial College London. It was previously known as Drayson Wireless and Drayson Technologies (Europe), developed the CleanSpace air-quality monitoring network, and spun off its clinical AI business as Sensyne Health in 2018. It has raised venture funding from investors including Capital Invent, Lansdowne Partners and Woodford Investment Management.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2013
- Headquarters
- London, United Kingdom
- Employees
- 7
- Open positions
- None listed
- Dealroom signal
- 69.3/100
- Sector
- Energy, Telecommunications, Wealth Management, Asset Management, Neurology, Spinout, Hard Tech, DT and LS, uk is8 financial services, UKSU
- Technology
- Big Data, Deep Tech, IoT InternetOfThings
- 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 |
|---|---|---|---|---|---|
| SERIES COther financing | Jul 2017 | $18M | $74M | Woodford Investment Management | ↗ |
| SERIES BOther financing | May 2016 | $12M | $49M | Woodford Investment Management · Lansdowne Partners | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for Freevolt Technologies is 400 monthly website visits, up 2.6% over the last three months. Freevolt Technologies's team declined 12.5% over the past year.
Similar companies
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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 A3 investors entered at this stage
Capital Invent
Lansdowne Partners
Woodford Investment Management
Other known investors1 additional known investor
Imperial College London
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Freevolt Technologies 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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