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Caslog breaks through: tests with Azov Brigade give green light to next stages

by
Fergus O'Sullivan
August 10, 2026
Ukrainian-Swiss startup Caslog opens pre-seed round for front-line medical device.

Caslog is on a roll. The startup, which we covered at length just last May, has gone through its first round of testing with medics from the Azov Brigade. After positive results, the team behind Caslog is now selecting a manufacturing company and seeking outside funding.

Caslog is a device that is strapped to a wounded soldier and records their caregivers as they treat them. These recordings are then passed through AI voice recognition software and create a log that can then be used by subsequent caregivers as the soldier is passed from one stage to the next in the evacuation chain. It’s also passed on to the command post.

As Caslog COO Mykyta Puz, himself an officer in Azov, explains, “ evacuation is not a direct point-to-point operation.” Over the course of the war, the front has thickened to a so-called killzone of several kilometers. Where wounded would before be quickly moved to a medical station, now evacuation is “never just a couple of hours, it’s days, maybe up to a week.” 

Realistic testing

The tests were held late July. In several rounds, combat medic instructors of the Azov Brigade tested Caslog in scenarios based on their experiences on the front lines. 

Caslog CEO Fabio Hamilos-Keller acted as a patient in the tests.

he feedback was positive, and surprised even the Caslog team. For example, says Puz, nobody expected the voice recognition software to perform as well as it did, populating patient information by itself, to the full satisfaction of the medics.

However, the Azov medical team did give several recommendations, including the need to include a way to measure a wounded soldier’s vitals, as well as ruggedizing the device. Assuming these and other improvements are made, the Azov brigade surgeon has issued a letter of request for 100 units, to be used as a front-line pilot.

The team is currently working on these changes, as well as selecting a manufacturer for the device. In the meantime, they are gauging the interest of other Ukrainian brigades; the hope is to produce up to 10,000 units in the next two years. The price of Caslog is set at €500 per unit for the Ukrainian army. Future purchases by NATO militaries would be subject to a licensing fee.

To finance this next step, Caslog is opening a seed round for up to €500.000. The team is currently negotiating with several funds and angel investors, and claims soft commits for roughly half that amount.

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