HTTP 200 OK
Allow: GET
Content-Type: application/json
Vary: Accept
{
"count": 17057,
"next": "https://lda.senate.gov/api/v1/registrants/?format=api&ordering=-name&page=154",
"previous": "https://lda.senate.gov/api/v1/registrants/?format=api&ordering=-name&page=152",
"results": [
{
"id": 33886,
"url": "https://lda.senate.gov/api/v1/registrants/33886/?format=api",
"house_registrant_id": 33031,
"name": "RTS CONSULTING",
"description": null,
"address_1": "P O BOX 65796",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "WASHINGTON",
"state": "DC",
"state_display": "District of Columbia",
"zip": "20035",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:51:18.028771-05:00"
},
{
"id": 308593,
"url": "https://lda.senate.gov/api/v1/registrants/308593/?format=api",
"house_registrant_id": 38375,
"name": "RTK CONSULTING GROUP LLC",
"description": "Consulting",
"address_1": "1830 Jefferson Place, NW",
"address_2": "Suite 10",
"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": "TANYA RAHALL",
"contact_telephone": "+1 202-276-6557",
"dt_updated": "2025-07-22T19:28:33.234973-04:00"
},
{
"id": 44537,
"url": "https://lda.senate.gov/api/v1/registrants/44537/?format=api",
"house_registrant_id": 34200,
"name": "RTI INTERNATIONAL METALS, INC.",
"description": null,
"address_1": "1000 WARREN AVENUE",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "NILES",
"state": "OH",
"state_display": "Ohio",
"zip": "44446",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "MR. TIMOTHY A. BUSCH",
"contact_telephone": "",
"dt_updated": "2022-04-06T16:07:56.384636-04:00"
},
{
"id": 62791,
"url": "https://lda.senate.gov/api/v1/registrants/62791/?format=api",
"house_registrant_id": 35490,
"name": "RTI INTERNATIONAL",
"description": "Research and Development",
"address_1": "3040 CORNWALLIS ROAD",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "RESEARCH TRIANGLE PARK",
"state": "NC",
"state_display": "North Carolina",
"zip": "27709",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "JAMES HUNTER",
"contact_telephone": "+1 202-494-8809",
"dt_updated": "2025-07-14T15:38:58.218623-04:00"
},
{
"id": 76558,
"url": "https://lda.senate.gov/api/v1/registrants/76558/?format=api",
"house_registrant_id": 36106,
"name": "RTH CONSULTING",
"description": null,
"address_1": "809 PRINCESS STREET",
"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": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:53:59.621631-05:00"
},
{
"id": 400622891,
"url": "https://lda.senate.gov/api/v1/registrants/400622891/?format=api",
"house_registrant_id": 400622891,
"name": "RTD EMBEDDED TECHNOLOGIES, INC. - JULIE HARRIS MCCREY",
"description": "Defense Contractor/High Technology Industrial COTS Plus Products-Land, Air, Sea & Space",
"address_1": "103 INNOVATION BOULEVARD",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "STATE COLLEGE, PA",
"state": "PA",
"state_display": "Pennsylvania",
"zip": "16803",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "JULIE HARRIS MCCREY",
"contact_telephone": "+1 814-753-0024",
"dt_updated": "2022-04-06T16:07:34.316897-04:00"
},
{
"id": 400422016,
"url": "https://lda.senate.gov/api/v1/registrants/400422016/?format=api",
"house_registrant_id": null,
"name": "RT CROWE & ASSOCIATES",
"description": null,
"address_1": "500 CREST CIRCLE NORTH",
"address_2": "",
"address_3": "",
"address_4": null,
"city": "JASPER",
"state": "AL",
"state_display": "Alabama",
"zip": "35501",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "RT CROWE",
"contact_telephone": "+1 205-613-7345",
"dt_updated": "2022-01-13T14:58:02.841812-05:00"
},
{
"id": 37221,
"url": "https://lda.senate.gov/api/v1/registrants/37221/?format=api",
"house_registrant_id": 39390,
"name": "R SULLIVAN & ASSOCIATES",
"description": null,
"address_1": "1100 CLOVER DRIVE",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "MCLEAN",
"state": "VA",
"state_display": "Virginia",
"zip": "22101",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "MS. REGINA SULLIVAN",
"contact_telephone": "+1 202-669-9014",
"dt_updated": "2022-04-06T16:07:58.514528-04:00"
},
{
"id": 401103642,
"url": "https://lda.senate.gov/api/v1/registrants/401103642/?format=api",
"house_registrant_id": 401103642,
"name": "RSM US LLP (FORMERLY KNOWN AS MCGLADREY LLP)",
"description": "Accounting & consulting",
"address_1": "1250 H St. NW Suite 700",
"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": "MARY GOLDSMITH",
"contact_telephone": "+1 202-370-8247",
"dt_updated": "2025-07-17T19:03:43.541419-04:00"
},
{
"id": 87095,
"url": "https://lda.senate.gov/api/v1/registrants/87095/?format=api",
"house_registrant_id": 36599,
"name": "RSH CONSULTING",
"description": null,
"address_1": "610 NORTH EDISON",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "ARLINGTON",
"state": "VA",
"state_display": "Virginia",
"zip": "22203",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:54:28.114980-05:00"
},
{
"id": 401109604,
"url": "https://lda.senate.gov/api/v1/registrants/401109604/?format=api",
"house_registrant_id": null,
"name": "RS GROUP CONSULTING LLC",
"description": null,
"address_1": "P.O. Box 461",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Missoula",
"state": "MT",
"state_display": "Montana",
"zip": "59806",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "REGINA SHERICK",
"contact_telephone": "+1 202-440-3663",
"dt_updated": "2025-07-09T15:24:51.813531-04:00"
},
{
"id": 289317,
"url": "https://lda.senate.gov/api/v1/registrants/289317/?format=api",
"house_registrant_id": 37126,
"name": "RSA SECURITY",
"description": null,
"address_1": "8200 GREENSBORO DRIVE, SUITE 1100",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "MCLEAN",
"state": "VA",
"state_display": "Virginia",
"zip": "22102",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:54:53.029216-05:00"
},
{
"id": 308833,
"url": "https://lda.senate.gov/api/v1/registrants/308833/?format=api",
"house_registrant_id": 38545,
"name": "R&R PARTNERS, INC.",
"description": "government affairs consulting",
"address_1": "444 N. Capitol St NW",
"address_2": "Suite 209",
"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": "RYAN MCGINNESS",
"contact_telephone": "+1 202-624-5425",
"dt_updated": "2025-07-24T15:42:53.352916-04:00"
},
{
"id": 401104874,
"url": "https://lda.senate.gov/api/v1/registrants/401104874/?format=api",
"house_registrant_id": 401104874,
"name": "RRMATHESON, INC.",
"description": "Consulting",
"address_1": "P.O. Box 2244",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Palm Beach",
"state": "FL",
"state_display": "Florida",
"zip": "33480",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "ROBERT R MATHESON",
"contact_telephone": "+1 202-669-2332",
"dt_updated": "2022-01-13T15:01:24.211088-05:00"
},
{
"id": 400458217,
"url": "https://lda.senate.gov/api/v1/registrants/400458217/?format=api",
"house_registrant_id": 400458217,
"name": "RRI ENERGY, INC.",
"description": "Electric Power Generation",
"address_1": "1000 Main",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Houston",
"state": "TX",
"state_display": "Texas",
"zip": "77002",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "DEBORAH CURRIE",
"contact_telephone": "+1 832-357-5526",
"dt_updated": "2022-04-06T16:06:20.041527-04:00"
},
{
"id": 12447,
"url": "https://lda.senate.gov/api/v1/registrants/12447/?format=api",
"house_registrant_id": 33458,
"name": "R. R. DONNELLEY & SONS COMPANY",
"description": null,
"address_1": "111 SOUTH. WACKER DRIVE",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "CHICAGO",
"state": "IL",
"state_display": "Illinois",
"zip": "60606-4301",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "CARRIE L. GLADNEY",
"contact_telephone": "+1 312-326-8000",
"dt_updated": "2022-04-06T16:06:08.873050-04:00"
},
{
"id": 401110133,
"url": "https://lda.senate.gov/api/v1/registrants/401110133/?format=api",
"house_registrant_id": null,
"name": "RRB STRATEGIES LLC",
"description": null,
"address_1": "2934 W. Sunnyside Ave",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Chicago",
"state": "IL",
"state_display": "Illinois",
"zip": "60625",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "ROD BLAGOJEVICH",
"contact_telephone": "+1 773-415-2367",
"dt_updated": "2025-12-03T17:06:15.844612-05:00"
},
{
"id": 401009848,
"url": "https://lda.senate.gov/api/v1/registrants/401009848/?format=api",
"house_registrant_id": 401009848,
"name": "RPS ADVOCACY, LLC",
"description": "lobbying firm",
"address_1": "8307 Larkmeade Terrace",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Potomac",
"state": "MD",
"state_display": "Maryland",
"zip": "20854",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "RONALD SZABAT",
"contact_telephone": "+1 202-341-7587",
"dt_updated": "2022-04-06T16:07:47.281646-04:00"
},
{
"id": 401105542,
"url": "https://lda.senate.gov/api/v1/registrants/401105542/?format=api",
"house_registrant_id": 401105542,
"name": "RPN ADVOCACY, LLC",
"description": "Domestic helium policy, helium supply security, critical minerals",
"address_1": "1000 New Jersey Ave SE",
"address_2": "Apt 707",
"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": "ROMEL NICHOLAS",
"contact_telephone": "+1 412-508-9768",
"dt_updated": "2025-07-21T22:09:24.876482-04:00"
},
{
"id": 401109647,
"url": "https://lda.senate.gov/api/v1/registrants/401109647/?format=api",
"house_registrant_id": null,
"name": "RPM ORGANIZING, INC",
"description": null,
"address_1": "2516 Q Street NW",
"address_2": "Q205",
"address_3": null,
"address_4": null,
"city": "Washington",
"state": "DC",
"state_display": "District of Columbia",
"zip": "20007",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "SARA JORDAN",
"contact_telephone": "+1 317-432-6230",
"dt_updated": "2025-06-11T09:06:01.661390-04:00"
},
{
"id": 319197,
"url": "https://lda.senate.gov/api/v1/registrants/319197/?format=api",
"house_registrant_id": 39447,
"name": "RPI GROUP, INC.",
"description": "Government Relations & Business Development Services",
"address_1": "1320 Central Park Blvd.",
"address_2": "Suite 236",
"address_3": null,
"address_4": null,
"city": "Fredericksburg",
"state": "VA",
"state_display": "Virginia",
"zip": "22401",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "LISA PLEBAN",
"contact_telephone": "",
"dt_updated": "2022-04-06T16:07:56.646948-04:00"
},
{
"id": 73431,
"url": "https://lda.senate.gov/api/v1/registrants/73431/?format=api",
"house_registrant_id": 35949,
"name": "RPH & ASSOC",
"description": null,
"address_1": "336 W SHADOW CREEK DR",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "VERNON HILLS",
"state": "IL",
"state_display": "Illinois",
"zip": null,
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:53:57.513386-05:00"
},
{
"id": 43068,
"url": "https://lda.senate.gov/api/v1/registrants/43068/?format=api",
"house_registrant_id": 34083,
"name": "RPB CO",
"description": null,
"address_1": "PO BOX 2280",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "SPRINGFIELD",
"state": "VA",
"state_display": "Virginia",
"zip": "22152",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "",
"contact_telephone": "",
"dt_updated": "2022-01-13T14:52:05.610899-05:00"
},
{
"id": 401110051,
"url": "https://lda.senate.gov/api/v1/registrants/401110051/?format=api",
"house_registrant_id": null,
"name": "RP3 CONSULTING LLC",
"description": null,
"address_1": "1308 S. Rolfe Street",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "ARLINGTON",
"state": "VA",
"state_display": "Virginia",
"zip": "22204",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "ROBERT PARKS",
"contact_telephone": "+1 713-418-0310",
"dt_updated": "2025-11-17T13:33:12.468469-05:00"
},
{
"id": 400705117,
"url": "https://lda.senate.gov/api/v1/registrants/400705117/?format=api",
"house_registrant_id": 400705117,
"name": "ROY RAMTHUN",
"description": "Health care consulting",
"address_1": "307 Southwest Drive",
"address_2": null,
"address_3": null,
"address_4": null,
"city": "Silver Spring",
"state": "MD",
"state_display": "Maryland",
"zip": "20901",
"country": "US",
"country_display": "United States of America",
"ppb_country": "US",
"ppb_country_display": "United States of America",
"contact_name": "ROY RAMTHUN",
"contact_telephone": "+1 202-747-4467",
"dt_updated": "2025-07-11T22:13:32.047527-04:00"
}
]
}
