Funding to scale circadian tech beyond jet lag
Timeshifter announced on 15 April a new funding round led by Skip Capital, taking its cumulative raises to US$5.3 million (about €4.5 million). The company, which presents itself as a circadian technology specialist and the publisher of the world’s most downloaded anti–jet lag app, says the cash will accelerate its expansion from long‑haul travel into shift work and healthcare.
The round was led by Skip Capital, the private fund of Atlassian co‑founder Scott Farquhar and Kim Jackson, with several strategic backers taking part, including 2016 Formula 1 world champion Nico Rosberg, Axiom Space chief astronaut Michael López‑Alegría and Brian Kelly, founder of The Points Guy. Beyond long‑distance travel, the company now aims to move faster into shift work, involving multiple time zones, and healthcare — two markets where circadian desynchronisation has broader and potentially more critical effects.
Jet lag and shift work on one platform
Timeshifter’s model is to translate scientific concepts into digital tools that can scale. Its anti–jet lag app claims more than 1.6 million users worldwide, with almost 500,000 new accounts created in 2025. The company says it works with United Airlines, Lufthansa, SWISS, Austrian Airlines and InterContinental Hotels & Resorts to integrate its recommendations into travel‑related offers. In parallel, it is developing a standalone application for shift workers, already used by thousands of people and offered by employers in healthcare, energy, logistics and transport.
“We have known for decades that circadian clocks govern nearly every function in the human body, from sleep and alertness to metabolism and immune function. The human and financial costs of ignoring circadian biology have been staggering. People crossing time zones spend the first days of their trips fighting jet lag. The safety and health of shift workers are compromised,” said Mickey Beyer‑Clausen, co‑founder and chief executive of Timeshifter.
To support its positioning, the company cites more than 130,000 post‑flight surveys: Timeshifter says 96.4% of travellers who followed its recommendations did not experience severe or very severe jet lag. Conversely, not following the guidance is associated with a marked increase in health complications.
The issue therefore goes beyond frequent travellers. Timeshifter is also targeting employers confronting fatigue and safety risks, with around one in five workers worldwide on shift patterns. The start‑up is seeking to turn a use case historically tied to jet lag into a broader platform for managing biological timing, with an ambition that now spans multiple sectors.
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