IISY

Indoor air quality monitoring and reporting for owners and managers of large commercial property portfolios

Espoo, FinlandFounded 2017freesi.io Website technologies

Highlights

New on EvolcAdded 2026-10-28

About IISY

Freesi, operated by IISY Oy, provides indoor climate management for buildings. Data is collected from IoT sensors or through building automation system APIs, analysed in the FreesiCloud software, monitored with AI-powered alerts, and presented in reports.

Customers are property owners and managers, developers, public-sector bodies and tenants. The service is delivered as a turnkey, as-a-service offering with a setup fee and an annual fee. Reporting supports certificates such as RESET Standard and AirScore.

The company was founded in 2017 and is headquartered in Espoo, Finland, with 14 employees. The service is in use in Australia, Belgium, Finland, the Netherlands, the United Kingdom, Poland, Sweden and Germany. It connects to building automation systems from vendors including Siemens, Schneider Electric and Honeywell.

Product: Indoor climate monitoring and optimisation service with IoT sensors, FreesiCloud analytics, AI alerts and reporting.

Public tenders won

2 tenders won since 1 Jan 2024 from 2 public buyers in Finland. From EU award notices (TED) that name IISY by its registry number.

1 Oct 2026 Lappeenrannan kaupunki, Hankintapalvelut · Sisäilmajohtamisen ohjelmistopalvelu 2+2 v notice
8 Dec 2025 HUS Kiinteistöt Oy · 931523/ HUSK Kiinteistöjen sisäolosuhdeseurantapalvelun hankinta notice

Open tenders like these →

Jobs at IISY

No open positions listed right now.

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