Client List
GET /api/v1/clients/?format=api&ordering=-name&page=10
{ "count": 132681, "next": "https://lda.senate.gov/api/v1/clients/?format=api&ordering=-name&page=11", "previous": "https://lda.senate.gov/api/v1/clients/?format=api&ordering=-name&page=9", "results": [ { "id": 184925, "url": "https://lda.senate.gov/api/v1/clients/184925/?format=api", "client_id": 1005953, "name": "ZERRONOX CORPORATION", "general_description": "Emission reduction technology", "client_government_entity": false, "client_self_select": null, "state": "IL", "state_display": "Illinois", "country": "US", "country_display": "United States of America", "ppb_state": "IL", "ppb_state_display": "Illinois", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2018-01-15", "registrant": { "id": 314237, "url": "https://lda.senate.gov/api/v1/registrants/314237/?format=api", "house_registrant_id": 39145, "name": "INVARIANT LLC", "description": "Government relations firm", "address_1": "740 15th ST NW", "address_2": "5th Floor", "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": "LAURA JOSHUA", "contact_telephone": "+1 202-628-8952", "dt_updated": "2026-01-20T22:53:50.106310-05:00" } }, { "id": 194748, "url": "https://lda.senate.gov/api/v1/clients/194748/?format=api", "client_id": 12, "name": "ZERO TO THREE: NATIONAL CENTER FOR INFANTS, TODDLERS, AND FAMILIES", "general_description": null, "client_government_entity": false, "client_self_select": true, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2011-04-01", "registrant": { "id": 400727182, "url": "https://lda.senate.gov/api/v1/registrants/400727182/?format=api", "house_registrant_id": 400727182, "name": "ZERO TO THREE: NATIONAL CENTER FOR INFANTS, TODDLERS, AND FAMILIES", "description": "Provides information and training on infant-toddler development", "address_1": "2445 M Street, NW", "address_2": "Suite 600", "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20037", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "SAMANTHA CADET", "contact_telephone": "+1 771-210-1120", "dt_updated": "2025-07-17T15:12:42.191286-04:00" } }, { "id": 211741, "url": "https://lda.senate.gov/api/v1/clients/211741/?format=api", "client_id": 265, "name": "ZERO TO THREE: NATIONAL CENTER FOR INFANTS TODDLERS AND FAMILIES", "general_description": "Provides information and training on infant-toddler development.", "client_government_entity": false, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2021-08-04", "registrant": { "id": 401103367, "url": "https://lda.senate.gov/api/v1/registrants/401103367/?format=api", "house_registrant_id": 401103367, "name": "LEAVITT PARTNERS, LLC", "description": "Consulting.", "address_1": "601 New Jersey Ave NW", "address_2": "Suite 350", "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 ROBERTS", "contact_telephone": "+1 202-774-1404", "dt_updated": "2026-01-12T18:46:11.753271-05:00" } }, { "id": 209314, "url": "https://lda.senate.gov/api/v1/clients/209314/?format=api", "client_id": 1178, "name": "ZERO TO THREE", "general_description": "center dedicated to programs and policies for infants and toddlers", "client_government_entity": false, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2021-04-06", "registrant": { "id": 287771, "url": "https://lda.senate.gov/api/v1/registrants/287771/?format=api", "house_registrant_id": 37048, "name": "CLARK HILL, PLC", "description": "Law firm", "address_1": "1001 Pennsylvania Avenue NW", "address_2": "Suite 1300 South", "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": "ANTHONY CAMPAU", "contact_telephone": "+1 240-331-8804", "dt_updated": "2025-07-22T06:53:28.726118-04:00" } }, { "id": 55234, "url": "https://lda.senate.gov/api/v1/clients/55234/?format=api", "client_id": 55234, "name": "ZERO TO THREE", "general_description": "center dedicated to programs and policies for infants and toddlers", "client_government_entity": null, "client_self_select": false, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2023-02-16", "registrant": { "id": 401106319, "url": "https://lda.senate.gov/api/v1/registrants/401106319/?format=api", "house_registrant_id": 401106319, "name": "ACTUM I, LLC", "description": "Public affairs and media consulting services and support", "address_1": "1900 Avenue of the Stars", "address_2": "Suite 300", "address_3": null, "address_4": null, "city": "Los Angeles", "state": "CA", "state_display": "California", "zip": "90067", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "LAUREN LIPIN", "contact_telephone": "+1 410-428-2000", "dt_updated": "2026-01-20T08:57:37.896538-05:00" } }, { "id": 164943, "url": "https://lda.senate.gov/api/v1/clients/164943/?format=api", "client_id": 1006043, "name": "ZERO TO THREE", "general_description": "Non-profit organization that supports early childhood development.", "client_government_entity": false, "client_self_select": false, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2013-07-01", "registrant": { "id": 70175, "url": "https://lda.senate.gov/api/v1/registrants/70175/?format=api", "house_registrant_id": 30174, "name": "MERCURY PUBLIC AFFAIRS, LLC", "description": "lobbying", "address_1": "1130 Connecticut Ave NW", "address_2": "Suite 475", "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": "ADINA MINCHER", "contact_telephone": "+1 518-810-2468", "dt_updated": "2026-01-20T13:53:40.720252-05:00" } }, { "id": 129309, "url": "https://lda.senate.gov/api/v1/clients/129309/?format=api", "client_id": 90, "name": "ZERO TO THREE", "general_description": null, "client_government_entity": false, "client_self_select": null, "state": "DC", "state_display": "District of Columbia", "country": "US", "country_display": "United States of America", "ppb_state": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2012-07-13", "registrant": { "id": 22438, "url": "https://lda.senate.gov/api/v1/registrants/22438/?format=api", "house_registrant_id": 30779, "name": "LEDGE COUNSEL, INC.", "description": "Government Relations and Strategic Consulting", "address_1": "4958 Butterworth Place 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": "ALAN LOPATIN", "contact_telephone": "+1 202-487-4800", "dt_updated": "2026-01-20T10:41:38.855096-05:00" } }, { "id": 168089, "url": "https://lda.senate.gov/api/v1/clients/168089/?format=api", "client_id": 1006435, "name": "ZERO - THE END OF PROSTATE CANCER", "general_description": "national nonprofit organization with the mission to end prostate cancer.", "client_government_entity": false, "client_self_select": null, "state": "VA", "state_display": "Virginia", "country": "US", "country_display": "United States of America", "ppb_state": "VA", "ppb_state_display": "Virginia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2015-01-01", "registrant": { "id": 75557, "url": "https://lda.senate.gov/api/v1/registrants/75557/?format=api", "house_registrant_id": 36051, "name": "CORNERSTONE GOVERNMENT AFFAIRS, INC.", "description": "Government relations and consulting.", "address_1": "800 Maine Ave. SW Floor 7", "address_2": null, "address_3": null, "address_4": null, "city": "Washington", "state": "DC", "state_display": "District of Columbia", "zip": "20024", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "STACEY SCHOLL", "contact_telephone": "+1 202-370-1015", "dt_updated": "2025-07-24T17:48:54.531205-04:00" } }, { "id": 198094, "url": "https://lda.senate.gov/api/v1/clients/198094/?format=api", "client_id": 12, "name": "ZERO - THE END OF PROSTATE CANCER", "general_description": "non-profit patient advocacy", "client_government_entity": false, "client_self_select": null, "state": "VA", "state_display": "Virginia", "country": "US", "country_display": "United States of America", "ppb_state": "VA", "ppb_state_display": "Virginia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2014-03-01", "registrant": { "id": 401103189, "url": "https://lda.senate.gov/api/v1/registrants/401103189/?format=api", "house_registrant_id": 401103189, "name": "GABINIAN GROUP LLC", "description": "government relations, public policy, and advocacy training", "address_1": "9435 Lorton Market Street #271", "address_2": null, "address_3": null, "address_4": null, "city": "Lorton", "state": "VA", "state_display": "Virginia", "zip": "22079", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "KEVIN JOHNSON", "contact_telephone": "+1 202-664-4043", "dt_updated": "2022-04-06T16:07:43.567405-04:00" } }, { "id": 54966, "url": "https://lda.senate.gov/api/v1/clients/54966/?format=api", "client_id": 54966, "name": "ZERO TECHNOLOGIES LLC D/B/A ZEROWATER", "general_description": "Water product and services.", "client_government_entity": null, "client_self_select": false, "state": "PA", "state_display": "Pennsylvania", "country": "US", "country_display": "United States of America", "ppb_state": "PA", "ppb_state_display": "Pennsylvania", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2023-03-08", "registrant": { "id": 682, "url": "https://lda.senate.gov/api/v1/registrants/682/?format=api", "house_registrant_id": 31784, "name": "AKIN GUMP STRAUSS HAUER & FELD", "description": "Law firm", "address_1": "2001 K St NW", "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": "BRIAN POMPER", "contact_telephone": "+1 202-887-4000", "dt_updated": "2025-07-30T17:01:00.677978-04:00" } }, { "id": 173419, "url": "https://lda.senate.gov/api/v1/clients/173419/?format=api", "client_id": 455, "name": "ZERO STAGE CAPITAL", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "MA", "state_display": "Massachusetts", "country": "US", "country_display": "United States of America", "ppb_state": "MA", "ppb_state_display": "Massachusetts", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2005-03-01", "registrant": { "id": 87038, "url": "https://lda.senate.gov/api/v1/registrants/87038/?format=api", "house_registrant_id": 36600, "name": "WOLF BLOCK GOVERNMENT RELATIONS", "description": null, "address_1": "1401 NEW YORK AVE #810", "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": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:54:25.511999-05:00" } }, { "id": 114190, "url": "https://lda.senate.gov/api/v1/clients/114190/?format=api", "client_id": 416, "name": "ZERO STAGE CAPITAL", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1999-12-30", "registrant": { "id": 10183, "url": "https://lda.senate.gov/api/v1/registrants/10183/?format=api", "house_registrant_id": 10183, "name": "COMMONWEALTH GROUP", "description": null, "address_1": "1401 NEW YORK AVE NW #810", "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": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:47:32.370054-05:00" } }, { "id": 180904, "url": "https://lda.senate.gov/api/v1/clients/180904/?format=api", "client_id": 36, "name": "ZERO STAGE CAPITAL", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2005-03-01", "registrant": { "id": 302938, "url": "https://lda.senate.gov/api/v1/registrants/302938/?format=api", "house_registrant_id": 37507, "name": "WOLF BLOCK PUBLIC STRATEGIES", "description": "Public Policy Advocacy", "address_1": "1401 New York Ave., NW", "address_2": "Suite 810", "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": "CHRISTOPHER CUSHING", "contact_telephone": "+1 202-789-4040", "dt_updated": "2022-04-06T16:08:15.827273-04:00" } }, { "id": 114194, "url": "https://lda.senate.gov/api/v1/clients/114194/?format=api", "client_id": 455, "name": "ZEROSTAGE", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": null, "state_display": null, "country": "US", "country_display": "United States of America", "ppb_state": null, "ppb_state_display": null, "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "1899-12-30", "registrant": { "id": 10183, "url": "https://lda.senate.gov/api/v1/registrants/10183/?format=api", "house_registrant_id": 10183, "name": "COMMONWEALTH GROUP", "description": null, "address_1": "1401 NEW YORK AVE NW #810", "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": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:47:32.370054-05:00" } }, { "id": 56711, "url": "https://lda.senate.gov/api/v1/clients/56711/?format=api", "client_id": 56711, "name": "ZERORISC INC.", "general_description": "Secure computer design.", "client_government_entity": null, "client_self_select": false, "state": "MA", "state_display": "Massachusetts", "country": "US", "country_display": "United States of America", "ppb_state": "MA", "ppb_state_display": "Massachusetts", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2023-07-11", "registrant": { "id": 35002, "url": "https://lda.senate.gov/api/v1/registrants/35002/?format=api", "house_registrant_id": 37919, "name": "PILLSBURY WINTHROP SHAW PITTMAN LLP", "description": "Law Firm", "address_1": "1200 Seventeenth Street 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": "CRAIG BENNETT", "contact_telephone": "+1 916-329-4724", "dt_updated": "2025-07-25T14:06:06.076381-04:00" } }, { "id": 134517, "url": "https://lda.senate.gov/api/v1/clients/134517/?format=api", "client_id": 24, "name": "ZERO PROSTATE CANCER", "general_description": "Prostate Cancer Non-Profit, Health and Wellness", "client_government_entity": false, "client_self_select": true, "state": "VA", "state_display": "Virginia", "country": "US", "country_display": "United States of America", "ppb_state": "VA", "ppb_state_display": "Virginia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2015-01-01", "registrant": { "id": 28388, "url": "https://lda.senate.gov/api/v1/registrants/28388/?format=api", "house_registrant_id": 33916, "name": "ZERO PROSTATE CANCER", "description": "Prostate Cancer Non Profit, Health and Wellness", "address_1": "515 King St.", "address_2": "Suite 420", "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": "ALISON MANSON", "contact_telephone": "+1 703-624-1223", "dt_updated": "2026-01-20T09:01:38.122390-05:00" } }, { "id": 160870, "url": "https://lda.senate.gov/api/v1/clients/160870/?format=api", "client_id": 1003388, "name": "ZERO POINT FRONTIERS CORPORATION", "general_description": "NASA / Space Industry", "client_government_entity": false, "client_self_select": false, "state": "AL", "state_display": "Alabama", "country": "US", "country_display": "United States of America", "ppb_state": "AL", "ppb_state_display": "Alabama", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2015-02-24", "registrant": { "id": 60116, "url": "https://lda.senate.gov/api/v1/registrants/60116/?format=api", "house_registrant_id": 35353, "name": "MAYNARD NEXSEN PC", "description": "Law Firm", "address_1": "1901 Sixth Avenue North", "address_2": "Suite 1700", "address_3": null, "address_4": null, "city": "Birmingham", "state": "AL", "state_display": "Alabama", "zip": "35203", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "DAYNE CUTRELL", "contact_telephone": "+1 205-254-1083", "dt_updated": "2025-07-29T16:45:51.720848-04:00" } }, { "id": 180656, "url": "https://lda.senate.gov/api/v1/clients/180656/?format=api", "client_id": 1002831, "name": "ZERO POINT FRONTIERS CORP", "general_description": "Aerospace", "client_government_entity": false, "client_self_select": null, "state": "AL", "state_display": "Alabama", "country": "US", "country_display": "United States of America", 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