Client List
GET /api/v1/clients/?format=api&ordering=name&page=80
https://lda.senate.gov/api/v1/clients/?format=api&ordering=name&page=81", "previous": "https://lda.senate.gov/api/v1/clients/?format=api&ordering=name&page=79", "results": [ { "id": 147910, "url": "https://lda.senate.gov/api/v1/clients/147910/?format=api", "client_id": 4873, "name": "ADVANCED TECHNOLOGY INSTITUTE", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2003-03-15", "registrant": { "id": 39837, "url": "https://lda.senate.gov/api/v1/registrants/39837/?format=api", "house_registrant_id": 32802, "name": "VAN SCOYOC ASSOCIATES", "description": "Government Relations Consultant", "address_1": "800 Maine Avenue, SW", "address_2": "Suite 800", "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": "H. STEWART VAN SCOYOC", "contact_telephone": "+1 202-638-1950", "dt_updated": "2025-07-30T16:13:00.237087-04:00" } }, { "id": 102844, "url": "https://lda.senate.gov/api/v1/clients/102844/?format=api", "client_id": 2928, "name": "ADVANCED TECHNOLOGY INSTITUTE", "general_description": "Technology Management Company", "client_government_entity": null, "client_self_select": null, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-02-08", "registrant": { "id": 2057, "url": "https://lda.senate.gov/api/v1/registrants/2057/?format=api", "house_registrant_id": 31648, "name": "ACG ADVOCACY", "description": "Government Affairs.", "address_1": "1800 M Street, NW", "address_2": "Suite 500 South Tower", "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": "BETH ANNE COLE", "contact_telephone": "+1 202-327-8100", "dt_updated": "2025-07-09T13:28:51.643009-04:00" } }, { "id": 51782, "url": "https://lda.senate.gov/api/v1/clients/51782/?format=api", "client_id": 51782, "name": "ADVANCED TECHNOLOGY INTERNATIONAL", "general_description": "Nonprofit that builds research & development collaboration", "client_government_entity": null, "client_self_select": false, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2022-04-27", "registrant": { "id": 400703105, "url": "https://lda.senate.gov/api/v1/registrants/400703105/?format=api", "house_registrant_id": 400703105, "name": "EMPIRE CONSULTING GROUP", "description": "Government Relations", "address_1": "1717 K Street NW", "address_2": "9th Floor", "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": "MIKE MCKAY", "contact_telephone": "+1 202-787-5740", "dt_updated": "2025-07-30T08:33:57.718665-04:00" } }, { "id": 209775, "url": "https://lda.senate.gov/api/v1/clients/209775/?format=api", "client_id": 1006967, "name": "ADVANCED TECHNOLOGY INTERNATIONAL", "general_description": "​Nonprofit that builds research and development collaborations", "client_government_entity": false, "client_self_select": null, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2021-01-01", "registrant": { "id": 292573, "url": "https://lda.senate.gov/api/v1/registrants/292573/?format=api", "house_registrant_id": 37315, "name": "MCALLISTER & QUINN, LLC", "description": "​Federal and Foundation Grants and Government Relations consulting firm.", "address_1": "1625 Eye Street, NW", "address_2": "Suite 750", "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": "ANDRE JACOBS", "contact_telephone": "+1 202-296-2741", "dt_updated": "2025-07-22T11:48:30.601922-04:00" } }, { "id": 204090, "url": "https://lda.senate.gov/api/v1/clients/204090/?format=api", "client_id": 1006296, "name": "ADVANCED TECHNOLOGY INTERNATIONAL", "general_description": "Nonprofit that builds research and development collaborations", "client_government_entity": false, "client_self_select": null, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2021-10-01", "registrant": { "id": 11195, "url": "https://lda.senate.gov/api/v1/registrants/11195/?format=api", "house_registrant_id": 31827, "name": "COVINGTON & BURLING LLP", "description": "Law firm", "address_1": "850 10th Street, NW", "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": "BRIAN SMITH", "contact_telephone": "+1 202-662-5090", "dt_updated": "2025-07-25T11:42:04.689948-04:00" } }, { "id": 53312, "url": "https://lda.senate.gov/api/v1/clients/53312/?format=api", "client_id": 53312, "name": "ADVANCED TECHNOLOGY INTERNATIONAL (ON BEHALF OF NATIONAL ARMAMENTS CONSORTIUM)", "general_description": "military and defense", "client_government_entity": null, "client_self_select": false, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2022-10-01", "registrant": { "id": 401106353, "url": "https://lda.senate.gov/api/v1/registrants/401106353/?format=api", "house_registrant_id": 401106353, "name": "THE HALCROW GROUP LLC", "description": "Consulting Services", "address_1": "8820 N 193rd Dr", "address_2": null, "address_3": null, "address_4": null, "city": "Waddell", "state": "AZ", "state_display": "Arizona", "zip": "85355", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "STEPHANIE HALCROW", "contact_telephone": "+1 703-581-7841", "dt_updated": "2025-07-28T11:10:38.121958-04:00" } }, { "id": 205040, "url": "https://lda.senate.gov/api/v1/clients/205040/?format=api", "client_id": 1748, "name": "ADVANCED TECHNOLOGY INTERNATIONAL ON BEHALF OF NATIONAL ARMAMENTS CONSORTIUM", "general_description": "military and defense", "client_government_entity": false, "client_self_select": null, "state": "SC", "state_display": "South Carolina", "country": "US", "country_display": "United States of America", "ppb_state": "SC", "ppb_state_display": "South Carolina", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2020-01-01", "registrant": { "id": 400534596, "url": "https://lda.senate.gov/api/v1/registrants/400534596/?format=api", "house_registrant_id": null, "name": "THORN RUN PARTNERS", "description": "Government Affairs Firm", "address_1": "100 M Street, SE", "address_2": "Suite 750", "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": "W. CHRISTOPHER LAMOND", "contact_telephone": "+1 202-688-0225", "dt_updated": "2025-07-14T09:11:55.226148-04:00" } }, { "id": 114009, "url": "https://lda.senate.gov/api/v1/clients/114009/?format=api", "client_id": 238, "name": "ADVANCED TECHNOLOGY RESERACH PROJECT CORP", "general_description": null, "client_government_entity": null, "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": "1998-08-15", "registrant": { "id": 9922, "url": "https://lda.senate.gov/api/v1/registrants/9922/?format=api", "house_registrant_id": 32772, "name": "RICHARD L. COLLINS & COMPANY, INC.", "description": "Defense Consulting", "address_1": "2111 Wilson Boulevard", "address_2": "Suite 700", "address_3": null, "address_4": null, "city": "Arlington", "state": "VA", "state_display": "Virginia", "zip": "22201", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "T.L. ALEXIS WEARS", "contact_telephone": "", "dt_updated": "2022-04-06T16:04:31.705675-04:00" } }, { "id": 165876, "url": "https://lda.senate.gov/api/v1/clients/165876/?format=api", "client_id": 113, "name": "ADVANCED TECHNOLOGY SERVICES", "general_description": null, "client_government_entity": null, "client_self_select": null, "state": "MS", "state_display": "Mississippi", "country": "US", "country_display": "United States of America", "ppb_state": "MS", "ppb_state_display": "Mississippi", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2003-02-01", "registrant": { "id": 72315, "url": "https://lda.senate.gov/api/v1/registrants/72315/?format=api", "house_registrant_id": 35842, "name": "CAPITOL HILL GROUP LLC", "description": null, "address_1": "15731 W. HARDY STREET, SUITE 1", "address_2": null, "address_3": null, "address_4": null, "city": "HOUSTON", "state": "TX", "state_display": "Texas", "zip": "77060", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "", "contact_telephone": "", "dt_updated": "2022-01-13T14:54:01.482253-05:00" } }, { "id": 148127, "url": "https://lda.senate.gov/api/v1/clients/148127/?format=api", "client_id": 9948, "name": "ADVANCED TECHNOLOGY SERVICES INC", "general_description": "Manufacturer", "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": "DC", "ppb_state_display": "District of Columbia", "ppb_country": "US", "ppb_country_display": "United States of America", "effective_date": "2007-07-30", "registrant": { "id": 39837, "url": "https://lda.senate.gov/api/v1/registrants/39837/?format=api", "house_registrant_id": 32802, "name": "VAN SCOYOC ASSOCIATES", "description": "Government Relations Consultant", "address_1": "800 Maine Avenue, SW", "address_2": "Suite 800", "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": "H. STEWART VAN SCOYOC", "contact_telephone": "+1 202-638-1950", "dt_updated": "2025-07-30T16:13:00.237087-04:00" } }, { "id": 156083, "url": "https://lda.senate.gov/api/v1/clients/156083/?format=api", "client_id": 125, "name": "ADVANCED TECHNOLOGY SOLUTIONS", "general_description": "Information technology", "client_government_entity": null, "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": "2001-02-09", "registrant": { "id": 49008, "url": "https://lda.senate.gov/api/v1/registrants/49008/?format=api", "house_registrant_id": 34513, "name": "CARTER GROUP, LLC", "description": "Lobbying and Consulting", "address_1": "1301 K ST NW #900-E", "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": "2022-01-13T14:52:42.128729-05:00" } }, { "id": 150653, "url": "https://lda.senate.gov/api/v1/clients/150653/?format=api", "client_id": 1002273, "name": "ADVANCED TECHNOLOGY SOLUTIONS", "general_description": "Software Development", "client_government_entity": false, "client_self_select": false, "state": null, "state_display": null, "country": "", "country_display": "* Undetermined", "ppb_state": null, "ppb_state_display": null, "ppb_country": "", "ppb_country_display": "* Undetermined", "effective_date": "2007-08-07", "registrant": { "id": 41113, "url": "https://lda.senate.gov/api/v1/registrants/41113/?format=api", "house_registrant_id": 30756, "name": "WEXLER | WALKER, A UNIT OF HILL+KNOWLTON STRATEGIES, LLC", "description": "Public Affairs", "address_1": "1317 F STREET, N.W.", "address_2": "SUITE 800", "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": "SONJAI C. HARRISON", "contact_telephone": "+1 202-662-3737", "dt_updated": "2022-04-06T16:06:12.831796-04:00" } }, { "id": 111524, "url": "https://lda.senate.gov/api/v1/clients/111524/?format=api", "client_id": 1852, "name": "ADVANCED TECHNOLOGY SYSTEMS", "general_description": null, "client_government_entity": null, "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": "2004-02-01", "registrant": { "id": 8316, "url": "https://lda.senate.gov/api/v1/registrants/8316/?format=api", "house_registrant_id": 32029, "name": "CARMEN GROUP INCORPORATED", "description": "Lobbying and Consulting Firm", "address_1": "801 Pennsylvania Ave NW, Suite 730", "address_2": null, "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": "JHAMILETH DELGADO", "contact_telephone": "+1 202-666-9569", "dt_updated": "2025-07-18T10:34:50.008297-04:00" } }, { "id": 109302, "url": "https://lda.senate.gov/api/v1/clients/109302/?format=api", "client_id": 2551, "name": "ADVANCED TECHNOLOGY SYSTEMS", "general_description": null, "client_government_entity": null, "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": "2005-01-25", "registrant": { "id": 6837, "url": "https://lda.senate.gov/api/v1/registrants/6837/?format=api", "house_registrant_id": 31699, "name": "BRACEWELL LLP", "description": "law firm", "address_1": "2001 M Street, NW", "address_2": "Suite 900", "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": "SCOTT H. SEGAL", "contact_telephone": "+1 202-828-5800", "dt_updated": "2025-07-30T17:22:00.829352-04:00" } }, { "id": 111065, "url": "https://lda.senate.gov/api/v1/clients/111065/?format=api", "client_id": 1002351, "name": "ADVANCED TECHNOLOGY SYSTEMS (ATS)", "general_description": "aviation security", "client_government_entity": false, "client_self_select": false, "state": null, "state_display": null, "country": "", "country_display": "* Undetermined", "ppb_state": null, "ppb_state_display": null, "ppb_country": "", "ppb_country_display": "* Undetermined", "effective_date": "2007-07-30", "registrant": { "id": 8087, "url": "https://lda.senate.gov/api/v1/registrants/8087/?format=api", "house_registrant_id": 31015, "name": "CAPITAL PARTNERSHIPS (VA) INC.", "description": "Transportation and Health related consulting", "address_1": "11350 Random Hills Road, Suite 800", "address_2": null, "address_3": null, "address_4": null, "city": "Fairfax", "state": "VA", "state_display": "Virginia", "zip": "22030", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "COLLEEN F. BUTLER", "contact_telephone": "+1 703-851-3881", "dt_updated": "2022-04-06T16:04:31.305431-04:00" } }, { "id": 131991, "url": "https://lda.senate.gov/api/v1/clients/131991/?format=api", "client_id": 1006358, "name": "ADVANCED TECHNOLOGY SYSTEMS COMPANY", "general_description": "Border security technology company", "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": "2019-01-15", "registrant": { "id": 24338, "url": "https://lda.senate.gov/api/v1/registrants/24338/?format=api", "house_registrant_id": 31445, "name": "MCDERMOTT WILL & EMERY LLP", "description": "Law Firm", "address_1": "500 North Capitol Street, NW", "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": "ERIC ZIMMERMAN", "contact_telephone": "+1 202-204-1457", "dt_updated": "2025-07-16T11:11:29.853617-04:00" } }, { "id": 189864, "url": "https://lda.senate.gov/api/v1/clients/189864/?format=api", "client_id": 36, "name": "ADVANCED TECHNOLOGY SYSTEMS COMPANY", "general_description": "System installation and integrated logistics support services", "client_government_entity": false, "client_self_select": false, "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": "2010-09-01", "registrant": { "id": 400384776, "url": "https://lda.senate.gov/api/v1/registrants/400384776/?format=api", "house_registrant_id": 400384776, "name": "GRIFFIN GLOBAL OUTREACH LLC", "description": "Consulting", "address_1": "3309 Old Dominion Blvd", "address_2": null, "address_3": null, "address_4": null, "city": "Alexandria", "state": "VA", "state_display": "Virginia", "zip": "22305", "country": "US", "country_display": "United States of America", "ppb_country": "US", "ppb_country_display": "United States of America", "contact_name": "MOLLY (AKA MARY) GRIFFIN", "contact_telephone": "+1 703-395-5564", "dt_updated": "2025-06-28T19:51:39.199644-04:00" } }, { "id": 209453, "url": "https://lda.senate.gov/api/v1/clients/209453/?format=api", "client_id": 1003934, "name": "ADVANCED TECHNOLOGY SYSTEMS COMPANY", "general_description": "Maritime border security technology company", "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", 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