Net Zero Compare
Freesi

Freesi

by IISY Oy

Indoor climate management platform

Onye Dike
Updated by Onye Dike on March 25th, 2026
Freesi is an indoor climate management platform designed for real estate owners, asset managers, developers, and public sector property operators seeking to improve building conditions and tenant experience. Rather than focusing on carbon accounting, it addresses the “social” dimension of ESG by measuring and optimizing indoor air quality and occupant well-being. The platform combines IoT-based data collection, analytics, and tenant feedback to provide a continuous view of indoor conditions across portfolios. This makes it particularly useful for organizations managing large building estates that need to link operational performance, energy efficiency, and tenant satisfaction within a single, data-driven system.

Available ESG Monitoring Features

Compliance Reporting
ESG Metrics Tracking

Missing ESG Monitoring Features

Alerts/Notifications
Audit Support
Benchmarking & Peer Comparison
Customizable Dashboards
Customizable Reporting Templates
Data Import/Export
Goal Setting & Tracking
Multi-Site Support
Risk Assessment & Scoring
Scope 1 Emissions Tracking
Scope 2 Emissions Tracking
Scope 3 Emissions Tracking
Supplier ESG Assessment
Workflow Automation

Pricing

Starting Price
EUR 1,250.00 / per year
Options
  • Annual Subscription

Available Since

2017

Deployment Options

  • Web Browser (Cloud - Based)

Good Option For

  • Small Business (11-50 people)
  • Medium Business (51-250 people)
  • Large Business (250+ people)

Deep dive


Core Features

Freesi applies a data-driven, building-level approach to indoor climate management by combining sensor data, analytics, and user feedback. It translates environmental conditions into actionable insights that improve both building performance and occupant experience. Key features include:

  • Real-Time Indoor Air Monitoring – Tracks variables such as temperature, CO₂, humidity, and particulate matter using IoT sensors and building system integrations.

  • AI-Driven Risk Detection – Uses analytics to identify indoor climate issues and generate actionable alerts and recommendations.

  • Tenant Experience Tracking – Combines measured data with occupant feedback to assess satisfaction and indoor comfort levels.

  • Portfolio-Level Analytics & Visualization – Aggregates data across multiple buildings and presents it through dashboards for decision-making.

  • ESG Reporting & Certification Support – Produces reports and metrics (e.g. People Health Index) aligned with standards such as RESET and AirScore.

  • Integration & API Connectivity – Connects with building automation, property management, and ESG systems to streamline data flows.

Closing Insights

Freesi is being used by organizations across commercial real estate, public-sector buildings, and development projects, including Finnish municipalities such as the City of Espoo and construction partners like NCC. These users apply the platform in different ways—from monitoring indoor conditions in schools and offices to improving tenant satisfaction in income-generating properties—highlighting its role in addressing the often underdeveloped “social” component of ESG reporting.

A novelty in Freesi is its focus on indoor climate as a measurable ESG factor, supported by metrics such as the People Health Index. This allows property stakeholders to move beyond qualitative assessments of occupant well-being and incorporate it into portfolio management and reporting processes.

As regulatory and investor expectations expand beyond emissions to include occupant health and well-being and other sustainability indicators, Freesi is positioned as a tool for embedding indoor environmental quality into standard real estate performance metrics and decision-making.


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