AAPG is an association for geologists, geophysicists, CEOs, managers, consultants, students, and academicians involved in the petroleum industry and research. The organization fosters scientific research, advances the science of geology, promotes technology, and inspires high professional conduct. It is currently the world's largest professional geological society.

1444 South Boulder Avenue
Tulsa, OK 74119-3604
Tel: (800) 364-2274
Tel: (918) 584-2555
Fax: (918) 560-2665

The AGA was founded in 1918 and represents more than 200 local energy companies that deliver clean natural gas throughout the United States. Ninety-five percent—more than 74 million customers—of natural gas customers receive their gas from AGA members.

400 North Capitol Street, NW, Suite 450
Washington, D.C. 20001-6506
Tel: (202) 824-7000

This nonprofit organization promotes the advancement of engineering and science relating to the atomic nucleus and of allied sciences and arts. For information on publications, scholarships, and seminars, contact

555 North Kensington Avenue
La Grange Park, IL 60526-5535
Tel: (800) 323-3044
Tel: (708) 352-6611
Fax: (708) 579-8314

The API is the only national trade association that represents all aspects of America’s oil and natural gas industry. Members are producers, refiners, suppliers, pipeline operators and marine transporters, as well as service and supply companies that support all segments of the industry. API provides its members with advocacy, research and statistics, standards, certification, and education.

200 Massachusetts Avenue, NW, Suite 1100
Washington, D.C. 20001-5571
Tel: (202) 682-8000

APGA is the only nonprofit trade organization representing America’s publicly owned natural gas local distribution companies. It represents the interests of public gas before Congress, federal agencies, and other energy-related stakeholders. APGA organizes meetings, seminars, and workshops with a specific goal to improve the reliability, operational efficiency, and regulatory environment in which public gas systems operate.

201 Massachusetts Avenue, NE, Suite C-4
Washington, D.C. 20002-4988
Tel: (800) 927-4204
Tel: (202) 464-2742
Fax: (202) 464-0246

This national trade association represents municipal, state, and local government-owned electric utilities. For more information on the industry, contact

2451 Crystal Drive, Suite 1000
Arlington, VA 22202-4804
Tel: (202) 467-2900

This national organization promotes the widespread use of solar energy and sponsors the National Solar Conference and Summit. For more information, contact

2525 Arapahoe Avenue, Suite E4-253
Boulder, CO 80302-6720
Tel: (303) 443-3130

AWEA is a national trade association that represents wind power project developers, equipment suppliers, services providers, parts manufacturers, utilities, researchers, and others involved in the wind industry. It represents wind energy advocates from around the world and provides up-to-date, accurate information about the domestic and international wind energy industry.

1501 M Street, NW, Suite 900
Washington, D.C. 20005-1700
Tel: (202) 383-2500

The AEE is a nonprofit professional society of more than 18,000 members in more than 100 countries. It promotes the scientific and educational interests of those engaged in the energy industry and to foster action for sustainable development. AEE offers informational outreach programs including seminars (live and Internet based), conferences, journals, books, and certification programs.

3168 Mercer University Drive
Atlanta, GA 30341-5630
Tel: (770) 447-5083

AESP is a member-based association that is dedicated to improving the delivery and implementation of energy efficiency, energy management, and distributed renewable resources. It provides professional development programs, a network of energy practitioners, and promotes the transfer of knowledge and experience.

15215 South 48th Street, Suite 170
Phoenix, AZ 85044-9139
Tel: (480) 704-5900

The Energy Bar Association is a nonprofit voluntary association of attorneys, non-attorney professionals, and students whose mission is to promote professional excellence and the ethical integrity of its members in the practice, administration, and development of energy laws, regulations, and policies. Members mostly hail from the United States, with an increasing number of members across Canada and Mexico.

2000 M Street, NW, Suite 715
Washington, D.C. 20036-3327
Tel: (202) 223-5625
Fax: (202) 833-5596

Visit the association’s Web site for a wealth of information on the fuel cell industry.

1211 Connecticut Avenue, NE, Suite 650
Washington, D.C. 20036-2725
Tel: (202) 261-1331

The GSA is a leader in advancing the geosciences, enhancing the professional growth of its members, and promoting the geosciences in the service to humankind and stewardship of the earth. Its members unite thousands of earth scientists from every corner of the globe in a common purpose to study the mysteries of our planet and share scientific findings.

PO Box 9140
Boulder, CO 80301-9140
Tel: (303) 357-1000
Fax: (303) 357-1070

For industry news and updates, publications, conferences, career opportunities, and membership information, contact

1120 Route 73, Suite 200
Mount Laurel, NJ 08054-5113
Tel: (530) 758-2360
Fax: (856) 439-0525

The association has served the light hydrocarbons industry since 1921 as an incorporated nonprofit trade association. Its corporate members are engaged in processing natural gas into merchantable pipeline gas, volume movement, or further processing of liquid products from natural gas.

Sixty Sixty American Plaza, Suite 700
Tulsa, OK 74135
Tel: (918) 493-3872

For industry information, contact

8200 Shaffer Parkway, #270585
Littleton, CO 80127-5434
Tel: (720) 722-0473

The IPAA represents the thousands of independent oil and natural gas producers and service companies across the United States. It serves as an informed voice for the exploration and production segment of the industry, and advocates for its members’ views before the U.S. Congress, administration, and federal agencies.

1201 15th Street, NW, Suite 300
Washington, D.C. 20005-2899
Tel: (800) 433-2851
Tel: (202) 857-4722
Fax: (202) 857-4799

The association works to help open new markets for energy services by directly promoting the value of demand reduction to customers through seminars, workshops, training programs, publication of case studies and guidebooks, and the compilation and dissemination of aggregate industry data. It is the industry's advocate for the cost-effective delivery of comprehensive energy services to all customer classes.

1667 K Street, NW, Suite 700
Washington, D.C. 20006-1654
Tel: (202) 822-0950
Fax: (202) 822-0955

The council is the place to go for all information about licensing requirements in the engineering and surveying professions. Visit its Web site for more information.

PO Box 1686
Clemson, SC 29633-1686
Tel: (800) 250-3196
Tel: (864) 654-6824

NEMA is a national, nonprofit trade association that represents wholesale and retail marketers of natural gas, electricity, energy, and financial related products, services, information, and advanced technologies throughout the United States, Canada, and the European Union.

3333 K Street, NW, Suite 110
Washington, D.C. 20007-3522
Tel: (202) 333-3288
Fax: (202) 333-3266

For more information on hydropower, contact

601 New Jersey Avenue, NW, Suite 660
Washington, D.C. 20001-2045
Tel: (202) 682-1700
Fax: (202) 682-9478

For information on renewable energy research and the development of new technologies, contact

15013 Denver West Parkway
Golden, CO 80401-3111
Tel: (303) 275-3000

The NSPE has chapters at the national, state, and local levels, making it easy for engineering professionals to network and trade ideas. The organization offers conferences, mentoring opportunities, professional development seminars, and other continuing education programs.

1420 King Street
Alexandria, VA 22314-2794
Tel: (888) 285-6773
Fax: (703) 684-2821

This organization is dedicated to the peaceful use of nuclear technologies. For more information, contact

1201 F Street, NW, Suite 1100
Washington, D.C. 20004-1218
Tel: (202) 739-8000
Fax: (202) 785-4019

For industry news and updates and general information on bioenergy, contact

16024 Manchester Road, Suite 101
Ellisville, MO 63011-2195
Tel: (636) 594-2284

For information on education and careers, contact

8801 South Yale Avenue, Suite 500
Tulsa, OK 74137-3575
Tel: (918) 497-5581
Fax: (918) 497-5558

SEIA represents the interests of solar energy manufacturers, distributors, contractors, installers, project developers, consultants, and others in the U.S. solar energy industry.

1425 K Street, NW, Suite 1000
Washington, D.C. 20005-3815
Tel: (202) 682-0556

For information on the energy industry, contact

1000 Independence Avenue, SW
Washington, D.C. 20585-0001
Tel: (202) 586-5000

For information on nuclear energy, contact

Tower House, 10 Southampton Street
London, England WC2E 7HA
Tel: +44 (0)20-7451-1520
Fax: +44 (0)20-7839-1501