• Atelier Brenac-Gonzalez - architekt studio
• Calyon (formerly Crédit Lyonnais) - banking services
• Cushman & Wakefield Healey & Baker - real estate agent
• DTZ - real estate agent
• Hotel Hilton Prague - accomodation and tourism services
• Internet Design - website design
• Jones Lang LaSalle - real estate agent
• Komerční banka - banking services
• Kugel - advertising agency
• Linklaters - legal services
• Mazars - audit and tax consultancy
• Peterka & Partners - legal services
• PriceWaterhouseCoopers - audit and tax consultancy
• Vyškočil, Krošlák a spol. - legal services

For operation of the buildings

• Axcom - electronic fire safety system
• Bozpo - Jiřina Pavoučková - fire and health safety
• Brotel - building access system
• Croatherm - ventilation and air-conditioning
• Dial Telecom - telecommunications services
• EDM - mail services
• Ekogarant - desinfection and deratization
• Folie Špačková - rectification of façade´s elements
• Hospiservis - security system
• Inko Praha - electricity installations
• Ipsal C.R. - carpenting and floor covering
• IOS - information systems
• Jungle Interiors - greenery
• Koja - fire extinguishers maintenance
• Kone - elevator maintenance
• PFM - facility management, mail and reception services
• Plural - cleaning services
• Pražské služby - waste disposal
• R.E.I. - building security
• Richter - lock smithing
• Seos - electronic fire safety system
• Schindler CZ - elevator maintenance
• Sodexho - restaurant and catering
• Test - cleaning services
• Tyco - sprinklers, fire safety systems
• Údržbářské práce Václav Pithart - fit out works
• Wakkenhat - building security
• ZZman - façade cleaning and maintenance