Here is our best effort at pointing you to the organizations that set "green" standards in the building trades, energy efficiency and renewable energy, and that train and/or certify practitioners.  Whether you are renovating your house and want it to be affordably green, or want to look into job opportunities in the green world, these are the best sources we know of updated lists, and inquiries can be directed to the organizations below. 

Architects

U.S. Green Building Council lists LEED-AP professionals
www.usgbc.org

Building commissioning specialists

Building Commissioning Association Northeast Chapter
http://www.bcxa.org/northeast/

EnergyStar builders and contractors

Directory by county at:
http://www.getenergysmart.org/Resources/FindPartner.aspx

Building Performance with EnergyStar:
www.getenergysmart.org/resource.asp

Criteria for Rating Building Energy Performance
http://www.energystar.gov/index.cfm?c=eligibility.bus_portfoliomanager_eligibility

Geothermal installers

Central Hudson (CH Energy Group) maintains a list of contractors at:
www.centralhudson.com/products_services/geothermal_installers.html

Home energy raters

Directory by county at:
http://www.home-performance.org/raters/raters.aspx

Landscape architect / designer

American Society of Landscape Architecture
636 Eye Street, NW
Washington, DC 20001-3736
Telephone: 202-898-2444
Fax: 202-898-1185
www.asla.org
- see “Firm Finder” on this website

Solar photovoltaic installers and system designers

New York Solar Energy Industries Association (NYSEIA)
533 Woodford Avenue
Endicott, New York 13760
518-495-1454
www.nyseia.org

Solar thermal installers and system designers

New York Solar Energy Industries Association (NYSEIA)
533 Woodford Avenue
Endicott, New York 13760
518-495-1454
www.nyseia.org

Small wind installers

American Wind Energy Association
www.awea.org - member list on site

Stormwater management and erosion control specialists

Society for Erosion and Sediment Control has three certifications (CP Erosion and Sediment Control , CP Storm Water Quality, and Certified Erosion and Sediment Control Inspector ), and the first two are listed on their web directory at:
www.cpesc.net