Lobbying

Costar Group CSGP's latest lobbying report covers Q2 2026, at $210K. The four quarters Q4 2025–Q3 2026 total $450K. Its first report covers Q1 2023; the issues it reports most are Real Estate/Land Use/Conservation and Housing.

Costar GroupCSGP

Costar Group stock page

Latest quarter
No record
Q3 2026 · 0 reports
Last 12 months
$450K
Last 4 quarters
vs last quarter
−100.0%
Q3 2026 against the quarter before
First report
Q1 2023
The first quarter a report named it

Lobbying by quarter

Costar Group lobbying by quarter
Costar Group lobbying by quarter
QuarterAmountReports
Q1 2023$90K2
Q2 2023$150K2
Q3 2023$150K2
Q4 2023$180K2
Q1 2024$120K3
Q2 2024$120K2
Q3 2024$120K2
Q4 2024$120K2
Q1 2025$120K2
Q2 2025$120K2
Q3 2025$120K2
Q4 2025$120K2
Q1 2026$120K2
Q2 2026$210K3
Q3 2026$00

By issue

  • Real estate and land use$1.8M · 29 reports
  • Housing$45K · 1 reports
  • Labor, antitrust and workplace$45K · 1 reports

An issue's amount splits each report's amount equally over the issues the report lists.

Who was lobbied

  • HOUSE OF REPRESENTATIVES29 reports
  • SENATE29 reports
  • Federal Trade Commission (FTC)2 reports
  • White House Office2 reports
  • Commerce, Dept of (DOC)1 reports
  • State, Dept of (DOS)1 reports
  • U.S. Trade Representative (USTR)1 reports

Firms it paid

Firm
Polaris Government Relations$950K14 quarters
Penn Avenue Partners$560K10 quarters
Brownstein Hyatt Farber Schreck$260K5 quarters
Miller Strategies$90K1 quarters

Former officials lobbying for it

Former position
JAMES TYLER GRIMMChief Counsel, Policy and Strategy, Counsel, Chief Adviser, Policy, Strategy and Communications, Rep. Jim Jordan. Deputy Chief of Staff, Legislative Director, Senior Staff Member, Rep. Darrell Issa. Senior Staff Member, Rep. Jason ChaffetzQ2 2026
JERR ROSENBAUMLegislative Director, Sen. John Cornyn; Chief of Staff, Rep. Robert Hurt; Chief of Staff, Rep. Jack Kingston; Chief of Staff, Rep. Virgil GoodeQ2 2026
LAUREN ANN REAMYDeputy Chief of Staff/Legislative Director/Legislative Assistant, Senator Marco Rubio; Professional Staff Member/Staff Assistant, Senate Judiciary CommitteeQ2 2026
TIMOTHY FARRELL HANNEGANU.S. General Accounting OfficeQ2 2026
ANDREW USYKLeg Assistant, Sen. Robert Casey; Legislative Aide Sen. Kristen Gillibrand; Compliance Officer, Sen. Gillibrand; Intern, Sen. Gillibrand and Rep. John DingellQ2 2023

Lobbying reports

Filed by
09/03for Q2Polaris Government Relations$60K
07/20for Q2Miller Strategies$90K
07/19for Q2Polaris Government Relations$60K
07/07for Q2Penn Avenue Partners$60K
06/24for Q2Miller StrategiesUnder $5,000
04/17for Q1Polaris Government Relations$60K
04/02for Q1Penn Avenue Partners$60K
01/16for Q4 2025Polaris Government Relations$60K
01/11for Q4 2025Penn Avenue Partners$60K
25/10/17for Q3 2025Polaris Government Relations$60K
25/10/03for Q3 2025Penn Avenue Partners$60K
25/07/17for Q2 2025Polaris Government Relations$60K
25/07/09for Q2 2025Penn Avenue Partners$60K
25/04/20for Q1 2025Polaris Government Relations$60K
25/04/16for Q1 2025Penn Avenue Partners$60K
25/01/20for Q4 2024Polaris Government Relations$60K
25/01/20for Q4 2024Penn Avenue Partners$60K
24/10/19for Q3 2024Penn Avenue Partners$60K
24/10/17for Q3 2024Polaris Government Relations$60K
24/07/18for Q2 2024Polaris Government Relations$60K