| Gores Tom +1 co-filer10% owner · 1 transaction | — | 182.90M†as of Apr 2021 | — | 148.60M | — |
| PE One Source Holdings, LLC +9 co-filers10% owner · 1 transaction | — | 182.90M†as of Apr 2021 | — | 148.60M | — |
| Gores Tom +1 co-filer10% owner · 1 transaction | — | 156.74Mas of Jan 2025 | — | 8.14M | — |
| PE One Source Holdings, LLC +8 co-filers10% owner · 1 transaction | — | 156.74Mas of Jan 2025 | — | 8.14M | — |
| ECP ControlCo, LLC +2 co-filersDirector, 10% owner · 9 transactions | — | 51.50M†as of Apr 2024 | 186.6K | — | 135.1K |
| NESCO Holdings GP, LLC +1 co-filer10% owner · 1 transaction | — | 26.16Mas of Aug 2019 | — | — | — |
| ECP Cardinal Holdings, LP +2 co-filers10% owner · 1 transaction | — | 23.38Mas of Sep 2024 | — | — | 2.35M |
| ECP ControlCo, LLC +9 co-filers10% owner · 2 transactions | — | 23.38Mas of Sep 2024 | — | — | 2.35M |
| Dryden L. DysonDirector · 3 transactions | — | 5.39M†as of Jun 2020 | 343.3K | — | — |
| Ein MarkDirector · 16 transactions | — | 5.17M† | 767.4K | 1.50M | — |
| Ross Fredrick M. Jr.Director · 19 transactions | — | 2.58M† | 748.1K | — | — |
| McMonagle RyanChief Executive Officer, Director · 23 transactions | — | 750.9K | 775.9K | 167.1K | — |
| Ross Joe P.President - Sales · 21 transactions | — | 659.9K† | 477.5K | 84.3K | — |
| Heinberg Marshall ADirector · 1 transaction | — | 520.5K† | 48.3K | — | — |
| Blackstone Group Management L.L.C. +3 co-filersFormer 10% Owner · 14 transactions | — | 495.9K†as of Feb 2022 | — | — | 14.17M |
| BCP VI-NQ Side-by-Side GP L.L.C. +8 co-filersFormer 10% Owner · 14 transactions | — | 478.9K†as of Feb 2022 | — | — | 14.17M |
| Heinberg MarshallDirector · 17 transactions | — | 472.2K†as of Apr 2025 | 123.8K | 340.0K | — |
| BCP CTOS Holdings L.P. +8 co-filersFormer 10% Owner · 14 transactions | — | 405.9K†as of Feb 2022 | — | — | 14.17M |
| Rich Thomas R.President - Rentals · 21 transactions | — | 363.6K | 477.5K | 41.2K | — |
| Eperjesy Christopher JChief Financial Officer · 16 transactions | — | 324.5K | 307.2K | 90.0K | — |
| Jacobson LeeCEO, Director · 5 transactions | — | 263.0Kas of May 2020 | — | 109.7K | — |
| Boone Joshua AChief Financial Officer · 2 transactions | — | 216.9Kas of Jun 2020 | 200.0K | 16.9K | — |
| Nelson Georgia RDirector · 7 transactions | — | 132.7K | 95.7K | 37.0K | — |
| Bader Paul TDirector · 1 transaction | — | 120.7K | 26.9K | — | — |
| Haubenreich Adam G.VP and General Counsel · 6 transactions | — | 111.7Kas of Apr 2023 | 78.1K | — | — |
| Bader PaulDirector · 5 transactions | — | 93.8Kas of Mar 2025 | 68.8K | 25.0K | — |
| Meader BradChief Financial Officer · 4 transactions | — | 86.5Kas of Apr 2022 | 37.5K | 25.0K | — |
| Carlsen JamesCIO · 15 transactions | — | 85.8Kas of Apr 2024 | 52.2K | 30.0K | — |
| Jackson Mary M.Director · 4 transactions | — | 82.0K | 82.0K | — | — |
| Calcano LawrenceDirector · 2 transactions | — | 81.6K†as of Jul 2019 | 5.0K | — | — |
| Coburn Brooke B.Director · 2 transactions | — | 81.6K†as of Jul 2019 | 5.0K | — | — |
| Jolas Paul MEVP, General Counsel & Sec. · 9 transactions | — | 81.2K | 124.1K | — | — |
| Holthaus Gerard EDirector · 8 transactions | — | 65.0Kas of Jun 2020 | 15.0K | 50.0K | — |
| Plummer William BDirector · 1 transaction | — | 63.0Kas of Jun 2020 | 15.0K | — | — |
| Haubenreich Adam P.VP and General Counsel · 2 transactions | — | 62.3Kas of Apr 2021 | — | 45.0K | — |
| Heinemann BruceChief Financial Officer · 1 transaction | — | 57.5Kas of Jul 2019 | — | — | — |
| Barrett Raymond ToddChief Accounting Officer · 24 transactions | — | 56.2Kas of Apr 2025 | 59.8K | 8.0K | — |
| Kapelke KevinChief Operating Officer · 1 transaction | — | 51.1Kas of Jul 2019 | — | — | — |
| Donaldson Richard CDirector · 2 transactions | — | 43.3K†as of Jul 2019 | 5.0K | — | — |
| Stoops JeffreyDirector · 1 transaction | — | 15.0Kas of Jun 2020 | 15.0K | — | — |
| Blackadar RobertPresident · 2 transactions | — | 7.0Kas of May 2020 | — | 7.0K | — |
| Energy Capital Partners Management, LPDirector · 1 transaction | — | 0as of Aug 2024 | — | — | 18.6K |