I really like Haworth.  In short, Haworth is a leader in office furniture and architectural interiors.  They do everything with a commitment to appealing aesthetics, thoughtful ergonomics, and sustainability.  I came in contact with some Haworth employees when I was finishing my JD/MBA program in Dallas, and they gave me a personal tour of the super-stylish Dallas showroom (a commercial interiors office display built to LEED-CI Gold standards).  Now, Haworth is working on a major, award-winning overhaul of their Holland, Michigan Headquarters.  The 300,000 sf renovation was designed to meet LEED-NC Gold standards; some of the building’s green features include the following:

• The new facade will have a sun-filled atrium and vegetated green roof, blending the boundary between the structure and natural environment;
• All of the interior 830 workstations will have access to daylight views;
• Over 99% of the existing materials collected during deconstruction and recovery are being recycled; and
• Although the footprint of the building will increase by 20%, energy use will remain at pre-renovation levels due to sustainability improvements. 

Of the green headquarters, Haworth Chairman Dick Haworth said, "The new Haworth Center will be a leading example of change. We’re not just building a better building … we’re building a better future."

Good Links:
++Haworth Sustainability Vision + Policy
++How Sustainable is Your Office?
++Haworth Sustainable Design Resources