Ecological architects with offices in Aspen, Colorado and Lawrence, Kansas.

Woman owned firm in Salt Lake City, Utah specializing in environmentally sustainable architecture.

Offering sustainable architecture, ecological design and building conservation. Based in Fife, Scotland,

Architecture with conservation in mind. Located in Bath, UK.

Salt Lake City, Utah design firm provides its design philosophy, project gallery and company information.

Australian firm specializing in architecture with a focus on sustainable and passive solar design. Includes portfolio, philosophy and contacts.

London-based firm specialising in the design and realisation of sustainable, urban, mixed-use projects.

Design, construction services and environmental architecture, as well as a real estate consultant in the Western US and South America. Includes brief introduction and links.

Offers examples of sustainable architecture, housing and arts projects in the UK along with a practice profile and contact details. Located in Dunbar, UK.

Designers with experience in ecologically sensitive green building, green architecture and community based planning projects. Portfolios, awards, and contact information.

Sustainable architectural design firm based in Sydney, Australia specialising in single residential, institutional and small-scale commercial architecture.

Offers a complete range of architectural services, from site planning to interior design. Oakland, California.

Design-build firm involved in the environment and building sustainable architecture. Houston, Texas.

Berkeley solar architect uses alternative building systems and references indigenous precedent.

Full- service planning, architecture and interior design firm in New York City specializing in environment / sustainable and human-centered architecture and design.

Sustainable design firm based in San Francisco, California offers firm overview, projects and concepts.

Boulder, Colorado based full-service architecture firm serving the Rocky Mountain region of the U.S.

Offering architecture and energy and environmental consultancy services for residential, commercial, education and arts/leisure. Located in London, UK.

Architectural firm specializing in alternative construction and environmentally appropriate technologies, such as straw bales, earth-rammed tires, pumice-crete, paper-crete and adobe. Contains project photos.

A multi-discipline firm offering sustainabilty consulting and design services to private, corporate and public clients. Includes project list, philosophy, articles, firm profile, service offered, and contacts. Located in Missouri.

Offers environmentally-responsive, high performance, green home design, architecture counseling and technical consulting services. Houston.

Sustainable ecological designs for residential and commercial projects throughout the UK.

Chicago-based firm focused on effective design and planning strategies that are environmentally-responsive to issues such as energy conservation, historic preservation and community-based planning.

Winchester, UK firm offers its philosophy of sustainable design and portfolio of projects.

Portfolio of commercial, residential, medical and corporate architecture with a focus on sustainable design. Includes profile and contacts.

Conceptual design, sustainable building and urban design research. Offices in Switzerland and Germany.

Offers sustainable and alternative technologies from inception through to an environmentally responsible construction process. Honeoye Falls, New York.

Multi-disciplinary practice in Pretoria, South Africa specialising in architecture, planning, sustainable development, disabled access and capacity development.

Design and construction group specialising in sustainable architecture and building. Lions Bay, British Columbia.

Carbondale, Colorado firm specializing in livable spaces with low or no impact on the environment. Details on experience and projects completed.

Full service commercial architectural design/consulting firm offering sustainable design services for educational, government, housing, commercial, retail, transportation, historical renovation and planning projects. Saint Louis, Missouri.

Washington, DC based design firm specializing in architecture and design for sustainable communities.

Sustainable architecture firm based in Ontario, California offering project management, site master planning and green building design.

Residential, multi-family housing, institutional and commercial architectural design services. Berkeley, California.

Practice with experience in architectural, planning and development projects covering all building classifications with special interest in energy, environment and ecological design. Kemnay, Inverurie, Aberdeenshire, Scotland.

Specializing in sustainable developments. Expertise in housing, communities, conservation and offices. Advice on solar and geothermal heating and energy efficiency. Glasgow, Scotland.

Architecture firm specializing in environmental planning, brownfield redevelopment, ecological restoration, park and greenway design.

Environmental architecture firm located in Durango, Colorado provides photos and designs of projects.

Alberta, Canada firm specializing in green architecture and sustainable buildings. Describes sustainable designs, processes and projects, awards, company and personnel information.

Santa Cruz, California practice focused on sustainable and energy efficient design in accordance with LEEDS presents portfolio, services, fees, profile and contacts

Multi-disciplinary team of architects and engineers that offers a full-range of sustainable services to clients located throughout the country. Based in Milwaukee, Wisconsin.

Specialises in environmentally sound buildings and the conservation and repair of existing buildings. Services and current and past projects. Based in York.

Overview of the firm, projects, awards, staff, philosophy. Bozeman, Montana.

Seattle architects focus on sustainable design for residential renovation and new construction, including energy and resource conservation and healthy building.

Green architectural services for commercial and residential clients. Based in Wimberley, Texas.

Kampala, Uganda architect offers career and personal information, articles and overview of sustainable shelter project.

Architecture and landscape design services with emphasis on principles of principles of sustainable design. Minneapolis, Minnesota.

Architect Richard Wright offers environmentally sustainable design solutions for residential and commercial buildings. Based in New Zealand.

An architectural firm that specializes in sustainable construction, passive, solar and green architecture. Includes profile, objectives, portfolio, services, awards and contacts. Located in Canada.

Sustainable design and consulting firm in Charlottesville, Virginia for residential, institutional, public spaces and mixed use projects.

Melbourne, Australia firm that provides architectural and engineering services on a variety of types of ecologically-sustainable development projects. List of awards and profile of personnel.

Sandra Leibowitz Earley and associates offer expert green building/ LEED technical consulting and process management. Based in Annapolis, Maryland.

Specialising in sustainable design and construction of straw-built homes in New Zealand.

Clients include corporations, institutions and government agencies wishing to implement Sustainable Design and Development practices. Baltimore, Maryland.

A Colorado architecture firm that specializes in solar design, sustainable and green building philosophies for commercial and residential projects. Includes portfolio, history, and contacts.

Specialises in the design of traditional and contemporary timber framed architecture. Profile and brief portfolio. Devon, U.K.

Environmental architecture firm located in Sausalito, California providing ecological design for sustainable development, green architecture and natural building.

Seattle-based commercial and residential architects specializing in sustainable design.

Architectural design practice specialising in the design of sustainable, context sensitive, low energy, low environmental impact buildings. Montpelier, Bristol, UK.

Full-service architecture and community design firm located in Charlestown, Virginia with an emphasis on sustainable design.

UK firm focused on sustainable green architecture.

California architect provides portfolio of work and philosophy.

Energy-efficient design and earth-friendly architecture for residential and commercial projects. Prescott, Arizona.