Engineering News Record has an article on the Top Green Contractors.
For the first time, ENR has produced a ranking of contractors based on the volume of sustainable and "Green" projects they have worked on. The list ranks the top 50 U.S.-based contractors, both publicly and privately held, based on construction contracting-specific revenue on projects that have been registered or certified by third-party organizations as following specific environmental, energy-savings, or sustainability standards.
It can be hard to find details on who the data center construction companies are due to NDA agreements signed, but I have run into Skanska and Turner numerous times. Keep these two companies in mind when you think of building a Green Data Center.
Going to Skanska’s web site I found the sustainability section impressive.
Skanska has a history of sustainable development timeline.
Turner has their Green Building site which isn’t as interesting a web site as Skanska.