{"count":17348,"next":"https://lda.senate.gov/api/v1/registrants/?format=json&ordering=name&page=27","previous":"https://lda.senate.gov/api/v1/registrants/?format=json&ordering=name&page=25","results":[{"id":401105604,"url":"https://lda.senate.gov/api/v1/registrants/401105604/?format=json","house_registrant_id":null,"name":"AMENTUM HOLDINGS, INC.","description":"Engineering and technical services","address_1":"300 M Street, SE","address_2":"Suite 880","address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20003","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"JOHN A. GASTRIGHT, JR.","contact_telephone":"+1 703-462-7190","dt_updated":"2026-01-30T12:44:04.816682-05:00"},{"id":38962,"url":"https://lda.senate.gov/api/v1/registrants/38962/?format=json","house_registrant_id":30710,"name":"AMEREN SERVICES","description":null,"address_1":"1331 PENNSYLVANIA AVE, NW","address_2":"SUITE 550S","address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20004","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"TRACY WALTON","contact_telephone":"+1 618-210-5919","dt_updated":"2026-01-28T10:30:32.405402-05:00"},{"id":400316483,"url":"https://lda.senate.gov/api/v1/registrants/400316483/?format=json","house_registrant_id":40230,"name":"AMERESCO","description":"Independent energy services company","address_1":"101 Constitution Avenue NW, Suite 525 East","address_2":null,"address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20001","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"MARK FOWLER","contact_telephone":"+1 508-598-4345","dt_updated":"2026-01-26T09:25:09.441398-05:00"},{"id":401106244,"url":"https://lda.senate.gov/api/v1/registrants/401106244/?format=json","house_registrant_id":45316,"name":"AMERIAN AUTOIMMUNE RELATED DISEASES ASSOCIATION INC","description":null,"address_1":"19176 Hall Road, Suite 130","address_2":null,"address_3":null,"address_4":null,"city":"Clinton Township","state":"MI","state_display":"Michigan","zip":"48038","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"BRETT MCREYNOLDS","contact_telephone":"+1 615-594-0145","dt_updated":"2022-01-13T15:02:00.031859-05:00"},{"id":401110482,"url":"https://lda.senate.gov/api/v1/registrants/401110482/?format=json","house_registrant_id":77512,"name":"AMERICA250.ORG, INC.","description":null,"address_1":"1300 Pennsylvania Avenue NW","address_2":"Suite 370","address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20004","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"THOMAS F. JENSEN","contact_telephone":"+1 571-500-1935","dt_updated":"2026-03-31T16:55:59.493339-04:00"},{"id":75717,"url":"https://lda.senate.gov/api/v1/registrants/75717/?format=json","house_registrant_id":36056,"name":"AMERICA BIKES","description":null,"address_1":"1612 K STREET, NW, #800","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20006","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"CARON WHITAKER","contact_telephone":"+1 202-215-3908","dt_updated":"2022-04-06T16:07:13.830164-04:00"},{"id":401104578,"url":"https://lda.senate.gov/api/v1/registrants/401104578/?format=json","house_registrant_id":null,"name":"AMERICA-FIRST ENERGY CONSULTING SERVICES","description":"Lobbying","address_1":"1200 G Street NW","address_2":null,"address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20005","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"CJ EVANS","contact_telephone":"+1 202-750-0007","dt_updated":"2022-04-06T16:07:55.963223-04:00"},{"id":1318,"url":"https://lda.senate.gov/api/v1/registrants/1318/?format=json","house_registrant_id":30328,"name":"AMERICAN ACADEMY OF ACTUARIES","description":null,"address_1":"1850 M Street, NW, Suite 300","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20036","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"STEPHANIE CONNOLLY","contact_telephone":"+1 202-785-6924","dt_updated":"2022-04-06T16:06:37.535176-04:00"},{"id":79370,"url":"https://lda.senate.gov/api/v1/registrants/79370/?format=json","house_registrant_id":36195,"name":"AMERICAN ACADEMY OF AUDIOLOGY","description":"hearing health care association","address_1":"11480 Commerce Park Drive","address_2":"Suite 220","address_3":null,"address_4":null,"city":"RESTON","state":"VA","state_display":"Virginia","zip":"20191","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"JOANNE ZURCHER","contact_telephone":"+1 202-270-6193","dt_updated":"2026-03-24T10:38:12.169845-04:00"},{"id":1320,"url":"https://lda.senate.gov/api/v1/registrants/1320/?format=json","house_registrant_id":32179,"name":"AMERICAN ACADEMY OF CHILD AND ADOLESCENT PSYCHIATRY","description":null,"address_1":"3615 WISCONSIN AVENUE, NW","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20016","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"MICHAEL LINSKEY","contact_telephone":"+1 202-966-7300","dt_updated":"2022-04-06T16:04:33.871665-04:00"},{"id":1331,"url":"https://lda.senate.gov/api/v1/registrants/1331/?format=json","house_registrant_id":30329,"name":"AMERICAN ACADEMY OF DERMATOLOGY ASSOCIATION","description":null,"address_1":"1201 Pennsylvania Ave N.W.","address_2":"Suite 540","address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20004","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"KARRY LAVIOLETTE","contact_telephone":"+1 202-230-1350","dt_updated":"2026-01-12T11:21:07.020779-05:00"},{"id":1342,"url":"https://lda.senate.gov/api/v1/registrants/1342/?format=json","house_registrant_id":32180,"name":"AMERICAN ACADEMY OF FAMILY PHYSICIANS","description":null,"address_1":"11400 TOMAHAWK CREEK PARKWAY","address_2":null,"address_3":null,"address_4":null,"city":"LEAWOOD","state":"KS","state_display":"Kansas","zip":"66211","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"DAVID TULLY","contact_telephone":"+1 202-232-9033","dt_updated":"2026-01-22T14:00:25.744785-05:00"},{"id":305418,"url":"https://lda.senate.gov/api/v1/registrants/305418/?format=json","house_registrant_id":38245,"name":"AMERICAN ACADEMY OF HIV MEDICINE","description":null,"address_1":"1705 DESALES ST NW","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20036","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"","contact_telephone":"","dt_updated":"2022-01-13T14:55:48.372482-05:00"},{"id":300856,"url":"https://lda.senate.gov/api/v1/registrants/300856/?format=json","house_registrant_id":37735,"name":"AMERICAN ACADEMY OF NEUROLOGY","description":"Physician trade association","address_1":"25 Massachusetts Avenue, NW","address_2":"Suite 500J","address_3":null,"address_4":null,"city":"Washington","state":"DC","state_display":"District of Columbia","zip":"20001","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"MAXWELL GOLDMAN","contact_telephone":"+1 860-917-1742","dt_updated":"2026-01-20T16:34:45.069003-05:00"},{"id":1364,"url":"https://lda.senate.gov/api/v1/registrants/1364/?format=json","house_registrant_id":30330,"name":"AMERICAN ACADEMY OF OPHTHALMOLOGY","description":null,"address_1":"20 F STREET, NW","address_2":"SUITE 400","address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20001","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"REBECCA HYDER","contact_telephone":"+1 202-737-6662","dt_updated":"2026-01-28T16:58:41.678947-05:00"},{"id":1375,"url":"https://lda.senate.gov/api/v1/registrants/1375/?format=json","house_registrant_id":30315,"name":"AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS","description":"Provider of musculoskeletal education to orthopaedic surgeon and other in the world","address_1":"9400 West Higgins Rd","address_2":null,"address_3":null,"address_4":null,"city":"Rosemont","state":"IL","state_display":"Illinois","zip":"60018","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"RACHEL BOWERS","contact_telephone":"+1 847-384-4254","dt_updated":"2026-01-26T14:43:32.337606-05:00"},{"id":1386,"url":"https://lda.senate.gov/api/v1/registrants/1386/?format=json","house_registrant_id":32181,"name":"AMERICAN ACADEMY OF OTOLARYNGOLOGY-HEAD AND NECK SURGERY","description":null,"address_1":"1650 Diagonal Road","address_2":null,"address_3":null,"address_4":null,"city":"ALEXANDRIA","state":"VA","state_display":"Virginia","zip":"22314","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"RAHUL K. SHAH, MD, MBA","contact_telephone":"+1 703-535-3721","dt_updated":"2026-02-05T17:04:45.115485-05:00"},{"id":1397,"url":"https://lda.senate.gov/api/v1/registrants/1397/?format=json","house_registrant_id":32182,"name":"AMERICAN ACADEMY OF PEDIATRICS","description":null,"address_1":"345 Park Blvd","address_2":null,"address_3":null,"address_4":null,"city":"Itasca","state":"IL","state_display":"Illinois","zip":"60143","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"JEFF HILD","contact_telephone":"+1 202-347-8600","dt_updated":"2026-03-03T00:20:33.048987-05:00"},{"id":400864533,"url":"https://lda.senate.gov/api/v1/registrants/400864533/?format=json","house_registrant_id":null,"name":"AMERICAN ACADEMY OF PHYSICAL MEDICINE AND REHABILITATION","description":"Advocacy on behalf of the medical specialty of Physical Medicine and Rehabilitation","address_1":"9700 W. Bryn Mawr Avenue","address_2":"Suite 200","address_3":null,"address_4":null,"city":"Rosemont","state":"IL","state_display":"Illinois","zip":"60018","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"CHRIS STEWART","contact_telephone":"+1 202-256-6580","dt_updated":"2026-01-30T17:54:20.796571-05:00"},{"id":1400,"url":"https://lda.senate.gov/api/v1/registrants/1400/?format=json","house_registrant_id":30525,"name":"AMERICAN ACADEMY OF PHYSICIAN ASSOCIATES","description":null,"address_1":"2318 Mill Road","address_2":"Suite 1300","address_3":null,"address_4":null,"city":"Alexandria","state":"VA","state_display":"Virginia","zip":"22314","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"KRISTIN BUTTERFIELD","contact_telephone":"+1 571-319-4340","dt_updated":"2026-01-27T16:19:47.674265-05:00"},{"id":401104174,"url":"https://lda.senate.gov/api/v1/registrants/401104174/?format=json","house_registrant_id":43378,"name":"AMERICAN ACADEMY OF PROFESSIONALS HEALTH PROGRAMS, LLC","description":null,"address_1":"1629 K STREET","address_2":"STE 300","address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20006","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"BOB COATES","contact_telephone":"+1 888-508-1859","dt_updated":"2022-01-13T15:00:57.406300-05:00"},{"id":3333,"url":"https://lda.senate.gov/api/v1/registrants/3333/?format=json","house_registrant_id":34060,"name":"AMERICAN ACADEMY OF SLEEP MEDICINE","description":"Promotes excellence in sleep medicine health care, education and research.","address_1":"2510 North Frontage Road","address_2":null,"address_3":null,"address_4":null,"city":"Darien","state":"IL","state_display":"Illinois","zip":"60561","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"ERIC ALBRECHT","contact_telephone":"+1 630-737-9700","dt_updated":"2026-01-30T14:40:10.609579-05:00"},{"id":1411,"url":"https://lda.senate.gov/api/v1/registrants/1411/?format=json","house_registrant_id":32152,"name":"AMERICAN ADVERTISING FEDERATION","description":null,"address_1":"1101 K St., NW, #420","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20005","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"CLARK RECTOR","contact_telephone":"+1 202-898-0089","dt_updated":"2026-01-16T13:42:53.711675-05:00"},{"id":1422,"url":"https://lda.senate.gov/api/v1/registrants/1422/?format=json","house_registrant_id":30853,"name":"AMERICAN AIRLINES, INC.","description":null,"address_1":"1200 17th St., N.W., Suite 400","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20036","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"STEPHEN NEUMAN","contact_telephone":"+1 202-496-5654","dt_updated":"2026-01-30T08:57:53.638593-05:00"},{"id":45777,"url":"https://lda.senate.gov/api/v1/registrants/45777/?format=json","house_registrant_id":null,"name":"AMERICAN AIRLINES SPECIAL SERVICES OFFICE","description":null,"address_1":"WASHINGTON NATIONAL AIRPORT","address_2":null,"address_3":null,"address_4":null,"city":"WASHINGTON","state":"DC","state_display":"District of Columbia","zip":"20001","country":"US","country_display":"United States of America","ppb_country":"US","ppb_country_display":"United States of America","contact_name":"","contact_telephone":"","dt_updated":"2022-01-13T14:52:26.037498-05:00"}]}