Federal agencies are prohibited from lobbying.   Wealthy corporations often do it for them, though, but usually with string$ attached (such as influence over agency policies, project selection, and even contract awards).   Such government contractors even manage to "co-opt" or infiltrate certain so called "citizens´ space lobbies", policy institutes, societies and foundations.   This can occur through endorsements, sponsorships, the recommending of support from allies in the government, or through job offers, scholarships, and government contracts for influential members.   The tax-subsidized bureaucrats can even donate directly to some of these lobbying groups through the "Combined Federal Campaign".  Are we doing enough to support the space-related organizations that try harder to take the moral high road, though?    Below is a list of known websites for space-oriented lobbying groups.

("" = "conspicuously states that it has a longstanding policy
of accepting no sponsorship from major aerospace contractors, and someone has notified us accordingly")

Aerospace Industries Association

American Astronomical Society

American Institute of Aeronautics & Astronautics

Archimedes Institute

Artemis Society

Center for Aerospace Policy Research (Washington D.C.)

F.I.N.D.S.  
(Foundation for the International Nongovernmental Development of Space)

International Institute of Air and Space Law
(The Netherlands)

Mars Society

Moon Society

National Space Society

PERMANENT (a moon & asteroid resource-utilization project)

Planetary Society

Satellite Industry Association

Space Access Society
(= conspicuously states that it has a longstanding policy
of accepting no sponsorship from aerospace companies)

Space Frontier Foundation

Space Policy Institute (George Washington University)

Space Studies Institute

The Society for International Space Cooperation

United States Space Foundation

Women in Aerospace

See also: lobbying entities focused on space issues...

(Again, "" signifies "conspicuously states that it has a longstanding policy
of accepting no sponsorship from major aerospace contractors, and someone has notified us accordingly")

selected brief excerpts from President Eisenhower´s Farewell Address...