Mikk Sillamaa

ISS Eesti AS operates as a property maintenance company. It offers cleaning, support, security, catering, facility management and property management services. The company is headquartered in Tallinn, Estonia.

Stell Eesti AS is a private company based in Tallinn, Estonia that provides cleaning and maintenance services for both outdoor and indoor areas of properties. The Estonian company believes in maintaining a balance between social, environmental, and economic aspects of their business operations. Stell's management system is recognized for meeting international standards such as ISO 9001, ISO 14001, and OHSAS 18001. The company also assists in managing apartment buildings and housing associations, helping to extend the lifespan of properties. The company was founded in 1995, and Mikk Sillamaa has been the CEO since 2020.