| Name | Institution | Country | Test date | Rank | Status |
|---|---|---|---|---|---|
| Machado, Luis | Etermar Engenharia e Construção S.A. | Peru | Mar 9, 2022 | Advanced | Current |
| Mackiewicz, Scott | Braun Intertec Corporation | USA-MO | Sep 26, 2012 | Advanced | Past validity |
| Malachias Filho, Carlos Augusto | Fundatest-Projetos e Ensaios Geotecnicos Ltda. | Brazil | Jun 3, 2019 | Advanced | Past validity |
| Malla, Sunil | Terracon | USA-LA | Mar 11, 2016 | Advanced | Past validity |
| Mantovani, Felipe | Mantovani Geotecnia | Brazil | Mar 12, 2025 | Advanced | Current |
| McCaskill, Alexander | --- | USA-IL | Feb 6, 2015 | Advanced | Past validity |
| McFarland, Anthony | GRL Engineers, Inc | USA-OH | Jul 16, 2025 | Advanced | Current |
| Meek, Casyn M | Terracon Consultants, Inc. | USA-FL | Oct 6, 2025 | Advanced | Current |
| Meisheid, Andrew | --- | USA-FL | Feb 18, 2015 | Advanced | Past validity |
| Michael, Valiquette | Infrastructure Consulting & Engineering | USA-NC | May 2, 2018 | Advanced | Past validity |
| Millan Solorzano, Luis Osmel | Millan Ingenieria | Costa Rica | Jul 21, 2023 | Advanced | Current |
| Morales, Matthew K. | Eustis Engineering LLC | USA-LA | Apr 8, 2026 | Advanced | Current |
| Mostakhdemi, Mehdi | Thurber Engineering Ltd. | Canada | Feb 24, 2022 | Advanced | Current |
| Murakami, Daniel Kina | Teknier Engenharia e Tecnologia | Brazil | Jun 27, 2015 | Advanced | Past validity |
| Murphy, Ryan | Geosciences Testing & Research (GTR) | USA-MA | Sep 18, 2026 | Advanced | Current |
| Murrell, Kyle | Terracon | USA-SC | Oct 31, 2017 | Advanced | Past validity |
| Nicol, Christopher J. | G2 Consulting Group, LLC | USA-MI | Jan 10, 2013 | Advanced | Past validity |
| Noor, Mudasser | Scientific Applied Concepts Ltd. (SACL) | Canada | Jul 17, 2024 | Advanced | Current |
| Norfleet, Michael | Pile Testing & Inspection, PLLC | USA-TX | Feb 25, 2015 | Advanced | Past validity |
| O'Dwyer, Shayne | Soil and Materials Engineers Inc. | Canada | Mar 1, 2023 | Advanced | Current |
| Ormon, Christopher Brad | Mississippi Deptartment of Transportation | USA-MS | Nov 8, 2012 | Advanced | Past validity |
| Padegimas, Tomas | Pile Dynamics, Inc | USA-OH | Oct 14, 2026 | Advanced | Current |
| Paxton, Dale | --- | USA-FL | Mar 14, 2014 | Advanced | Past validity |
| Pena Camerano, Mario Andres | PDI Ingenieria | Peru | May 22, 2024 | Advanced | Current |
| Phillips, Anthony | Insight Group | USA-SC | Jun 12, 2025 | Advanced | Current |
| Phuyal, Saphal | GRL Engineers, Inc | USA-IL | Feb 4, 2023 | Advanced | Current |
| Pilcher, Nathan | Kleinfelder, Inc. | USA-CO | Sep 23, 2015 | Advanced | Past validity |
| Quintana Oronoz, Carlos A. | Applied Foundation Testing | USA-FL | Mar 11, 2016 | Advanced | Past validity |
| Race, Morgan | Braun Intertec Corporation | USA-MN | Mar 11, 2016 | Advanced | Past validity |
| Reddy, Seth C. | GRI Inc. | USA-OR | Apr 1, 2015 | Advanced | Past validity |
| Reese, Corey | Atlas Foundation Co. | USA-MN | Mar 3, 2017 | Advanced | Past validity |
| Reuter, Gregory | American Engineering Testing, Inc. | USA-MN | Mar 7, 2012 | Advanced | Past validity |
| Revell, Stephen M. | Alabama Department of Transportation | USA-AL | Sep 20, 2018 | Advanced | Past validity |
| Rice, Cory G | SK Geotechnical Corporation | USA-MT | Mar 3, 2017 | Advanced | Past validity |
| Richardson, Jay | Mississippi Deptartment of Transportation | USA-MS | Mar 10, 2021 | Advanced | Current |
| Robertson, Seth | --- | USA-OH | Feb 4, 2023 | Advanced | Current |
| Rodrigues, Marcos | Burns Cooley Dennis, Inc. | USA-MS | Nov 8, 2012 | Advanced | Past validity |
| Rohith, Modali | Aver Technologies, Inc. | USA-VA | Dec 20, 2017 | Advanced | Past validity |
| Rombough, Joel | Right Six Consulting | Canada | Feb 28, 2018 | Advanced | Past validity |
| Simpson, Michael | Infrastructure Consulting & Engineering | USA-NC | Aug 25, 2021 | Advanced | Current |
| Skodowski, Jakub | GRL Engineers, Inc | USA-OH | Feb 4, 2023 | Advanced | Current |
| Snyder, Megan | Right Six Consulting | Canada | Aug 14, 2019 | Advanced | Past validity |
| Spears, Larry | Foundation & Geotechnical Engineering, LLC | USA-FL | Mar 8, 2014 | Advanced | Past validity |
| Suarez, Vinicio | Fractales Cia Ltda | Ecuador | Mar 3, 2017 | Advanced | Past validity |
| Thomas, Andrew | ECS Florida, LLC | USA-FL | Apr 13, 2018 | Advanced | Past validity |
| Thomson, Sally | Infrastructure Consulting & Engineering | USA-SC | Aug 11, 2021 | Advanced | Current |
| Thurmond, Patrick | Eustis Engineering LLC | USA-LA | Mar 15, 2023 | Advanced | Current |
| Valcour, Georges | --- | USA-FL | Jan 24, 2019 | Advanced | Past validity |
| Valverde, Rafael Marin | PDI Engenharia | Brazil | Jul 16, 2025 | Advanced | Current |
| Van Bemmel, Kelsey | Ground Engineering | USA-CO | Nov 5, 2021 | Advanced | Current |
Names in dark red are past the suggested validity period for their rank. If you want to remove your name from this list or re-take the test contact proficiencytest@pile.com.