My Private Pool is a peer-to-peer marketplace connecting pool owners with people looking to rent a private pool for the day. Byrsa Tech took over the existing platform to fix critical bugs, secure the payment flow, cut hosting and Google Maps costs, and is now leading a full rebuild of the web application.

Defmarket is a solidarity app for French public service agents (police, firefighters, military, and civil servants) and their families, giving them nationwide access to ticketing, cashback, and local business discounts. Byrsa Tech built the customer mobile app and the backoffice from scratch, and has kept the platform running in production for over 7 years, with a full web app version now in development.

Entraide Nationale is a solidarity platform created and run by Hyperion Défense, giving citizens a trusted way to support verified causes, launch donation campaigns, and find volunteer missions in the public sector, with 100% of donations passed on to beneficiaries and 0% commission. Byrsa Tech builds and operates the platform as part of its ongoing service center engagement with Hyperion Défense, the same partnership behind the Defmarket app.