Registered lobbyists and the principals they represent, with expenditures reported by session, sourced from politicalpractices.mt.gov. Montana sessions are biennial (labeled by even end-year).
| Name | Type | Year | Expenditures | Clients |
|---|---|---|---|---|
| Stusek, Dan | individual | 2026 | $1,583,034.84 | 33 |
| Baker, Mark | individual | 2026 | $1,502,154.84 | 31 |
| Scanlon, Shane | individual | 2026 | $1,298,290.39 | 28 |
| Scanlon, Shane | individual | 2024 | $1,173,528.33 | 29 |
| Baker, Mark | individual | 2024 | $1,123,996.1 | 29 |
| Myhre, Aidan S | individual | 2026 | $1,017,293.73 | 21 |
| Scanlon, Shane | individual | 2022 | $1,012,547.78 | 23 |
| Baker, Mark |
| individual |
| 2022 |
| $901,191.14 |
| 22 |
| Baker, Mark | individual | 2018 | $845,752.55 | 17 |
| Luther, Jessie | individual | 2026 | $753,821.32 | 33 |
| Myhre, Aidan S | individual | 2024 | $705,249.98 | 22 |
| Taylor, Mark | individual | 2026 | $700,764.82 | 29 |
| Noonan, Lawrence P | individual | 2024 | $620,488.15 | 10 |
| Reichner, Scott | individual | 2022 | $613,972.84 | 6 |
| Thompson, Brian P | individual | 2026 | $564,468.6 | 23 |
| Luther, Jessie | individual | 2024 | $553,946.51 | 29 |
| Taylor, Mark | individual | 2024 | $545,446.51 | 27 |
| Berner, Grace | individual | 2026 | $541,995.96 | 26 |
| Myhre, Aidan S | individual | 2022 | $534,613.93 | 14 |
| Reichner, Scott M | individual | 2024 | $516,170.93 | 6 |
| Spencer, Bruce M | individual | 2024 | $515,996.32 | 10 |
| Noonan, Lawrence P | individual | 2026 | $505,446.16 | 10 |
| Denowh, Charles | individual | 2026 | $500,742.49 | 28 |
| Shannon, Melissa | individual | 2018 | $488,604.41 | 15 |
| Puyear, Christopher L | individual | 2022 | $486,102.86 | 17 |
