| AMENTUM TECHNOLOGY, INC.CONTRACT 68HERC24D0008 - NEW TASK ORDER FOR "OTAQ/ASD VEHICLE FLEET SUPPORT" | 541330 | MI | $450,133 | Sep 8, 20260 mo | |
| PEGASUS TECHNICAL SERVICES, INCNEW TASK ORDER EXISTING IDIQ CONTRACT # 68HERC20D0029 TITLED "REMOVAL OF PER AND POLYFLUOROALKYL SUBSTANCES (PFAS) FROM DRINKING WATER" | 541715 | OH | $449,438 | Sep 29, 20260 mo | |
| RESEARCH TRIANGLE INSTITUTENEW TO UNDER STREAMS IV: SUSTAINABLE MATERIALS MANAGEMENT APPLICATIONS. | 541715 | NC | $448,549 | Sep 28, 20260 mo | |
| TECHLAW CONSULTANTS INCESO FEDERAL FACILITIES 5 TECHNICAL OVERSIGHT SUPPORT (FEDERAL AVIATION ADMINISTRATION (FAA) TECHNICAL CENTER, PICATINNY ARSENAL NAVAL WEAPONS STATION EARLE (NWSE), NAVAL ACTIVITY PUERTO RICO (NAPR) ) | 562910 | VA | $445,211 | Sep 30, 202824 mo 3 offers | |
| HYDROGEOLOGIC, INC.FUNDING FOR NEW ESO TASK ORDER: PETERSON PURITAN OU1 | 562910 | RI | $442,225 | Jul 31, 202822 mo 4 offers | |
| HELIOTECHTASK ORDER AWARD | 562910 | IL | $441,441 | Jul 31, 202822 mo 3 offers | |
| AECOM TECHNICAL SERVICES, INC.THIS ACTION INITIATES A NEW TASK ORDER UNDER THE REMEDIAL ACTION FRAMEWORK (RAF)FOR DESIGN AND ENVIRONMENTAL SERVICES (DES)FOR THE WR GRACE | 562910 | MA | $439,989 | Sep 29, 20260 mo 3 offers | |
| ABACO-BLACKFISH JV, LLCLIBRARY SERVICES, REGION 3 INFORMATION MANAGEMENT CENTER SERVICES (IMCS) | 541990 | DC | $439,921 | Apr 30, 202819 mo 3 offers | |
| DAYCOM LLCIMCS V GLNPO RECORDS MANAGEMENT SERVICES | 541990 | DC | $437,293 | Dec 31, 202715 mo 3 offers | |
| EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCBLADES GROUNDWATER (A38N) OU02 CONTRACT: ESO/EA ENGINEERING, CONTRACT: 68HE0118D0004 GOVT RA: NEW TASK ORDER FOR RA SUPPORT TO MAINTAIN POUTS PROVIDED TO RESIDENTS IN OU02. POC: ALAN GEYER 215-814-3312 | 562910 | DE | $434,356 | Dec 30, 20263 mo 5 offers | |
| NEXUS GROUP, LLCMAINTENANCE AND REPAIR SERVICES FOR ANALYTICAL INSTRUMENTS | 811210 | NC | $431,580 | Sep 13, 20260 mo 1 offer | |
| S.S. PAPADOPULOS & ASSOCIATES, INC.ST. REGIS PAPER COMPANY SUPERFUND SITE (SSID 05J2) | 541620 | MD | $430,465 | Sep 8, 202712 mo | |
| HYDROGEOLOGIC, INC.REMEDIAL ACQUISITION FRAMEWORK (RAF), DESIGN AND ENGINEERING SERVICES (DES) - FORMER UNITED ZINC REMEDIAL INVESTIGATION (RI)/FEASIBILITY STUDY (FS) - TASK ORDER AWARD | 562910 | KS | $425,696 | Sep 30, 20260 mo 1 offer | |
| TECHLAW CONSULTANTS INCRAF ESO TASK ORDER PGA NORTH/PGA SOUTH - OVERSIGHT OF REMEDIAL INVESTIGATION AND REMEDIAL ACTION | 562910 | AZ | $425,623 | Jun 22, 20279 mo 1 offer | |
| THE CADMUS GROUP LLCNEW TASK ORDER FOR PFAS WASTEWATER/SURFACE WATER SAMPLING AND DATA ANALYSIS WORK FOR REGION 8 TRIBES IN ACCORDANCE WITH THE ATTACHED PERFORMANCE WORK STATEMENT. | 541620 | MA | $425,445 | Sep 23, 20260 mo | |
| HYDROGEOLOGIC, INC.US EPA, REGION 7 - ESO - CHEMICAL COMMODITIES, INC. LTRA TWO TECHNICAL SUPPORT SERVICES, OLATHE, KS | 562910 | KS | $425,066 | Sep 30, 20260 mo 1 offer | |
| AGILE DECISION SCIENCES, LLCRECORDS MANAGEMENT REGION 4 LSASD INFORMATION MANAGEMENT CENTER SERVICES V (IMCS V) | 541990 | GA | $413,296 | Mar 31, 202818 mo 3 offers | |
| CH2M HILL, INCKEYSTONE | 562910 | IN | $410,963 | Sep 29, 20260 mo 1 offer | |
| S.S. PAPADOPULOS & ASSOCIATES, INC.GEOS4 CALL ORDER FOR ACME SOLVENT RECLAIMING SUPERFUND SITE IN ROCKFORD ILLINOIS; SITE 0579. | 541620 | MD | $407,958 | Sep 8, 202712 mo | |
| OCH JVTASK ORDER: TWO RIVERS | 562910 | WI | $406,082 | Jul 31, 202822 mo 1 offer | |
| OCH JVTASK ORDER DOVER CHEMICAL | 562910 | WI | $405,388 | Jul 31, 202822 mo 4 offers | |
| ADANTA, INC.R10: BRADFORD ISLAND CASCADE LOCKS, OR FACILITATION SERVICES | 541620 | WA | $401,550 | Jul 14, 202710 mo 2 offers | |
| REDHAWK IT SOLUTIONS, LLCSOFTWARE: 360 BUSINESS OBJECTS LICENSE RENEWAL | 541519 | VA | $400,549 | Sep 15, 20260 mo 2 offers | |
| FOURTH STATE LLCPLASMA-DRIVEN DESTRUCTION OF PFAS IN COMPLEX WATER MATRICES: PILOT-SCALE DEMONSTRATION | 541715 | MI | $400,000 | Oct 17, 20261 mo 22 offers | |
| DIPOLE MATERIALS INCFIGHTING FIRES WITH FILTERS - ELECTROSPINNING BIODEGRADABLE MATERIALS FOR HIGH-PERFORMANCE INDOOR AIR FILTERS | 541715 | MD | $400,000 | Oct 17, 20261 mo 22 offers | |
| GREENLIFETECH CORPNOVEL METHOD FOR PRODUCE PRESERVATION AND STERILIZATION IN MODERN REFRIGERATORS | 541715 | NC | $400,000 | Oct 17, 20261 mo 22 offers | |
| WATER ILLUMINATION INCDEVELOPMENT OF A CHEMICAL-FREE SHORT-WAVELENGTH UV BASED PFAS DESTRUCTION TECHNOLOGY FOR SALINE WASTEWATER TREATMENT | 541715 | CA | $400,000 | Oct 17, 20261 mo 22 offers | |
| VALIS INSIGHTS, INC.ENHANCED EFFICIENCY OF UBC RECYCLING POWERED BY ARTIFICIAL INTELLIGENCE | 541715 | MA | $400,000 | Oct 17, 20261 mo 22 offers | |
| ENVIRONMENTAL RESTORATION LLCEMERGENCY TASK ORDER - OPA -- ER CONTRACT 68HE0422D0001 TOCOR: RACHEL WEBB PRIMARY INVOICE APPROVING OFFICIAL: RACHEL WEBB ALTERNATE INVOICE APPROVING OFFICIAL: HANK THOMPSON | 562910 | TX | $400,000 | Nov 9, 20262 mo 1 offer | |
| PARAGON PROFESSIONAL SERVICES LLCCONTRACT SUPPORT FOR ALASKA LANDFILL CONTAMINANTS PROJECT. | 562910 | AK | $400,000 | Mar 19, 20276 mo 1 offer | |
| ENVIRONMENTAL RESTORATION LLCEMERGENCY RESPONSE FOR ASPEN PARK SOLVENTS | 562910 | CO | $395,432 | Sep 5, 20260 mo | |
| CONSOLIDATED SAFETY SERVICES INCORPORATEDAJ11 - GREAT LAKES NATIONAL PROGRAM OFFICE WATER QUALITY SURVEY ANALYSES 2025 | 541715 | OR | $395,417 | Sep 3, 20260 mo | |
| ECO ANALYSTS, LLCNATIONAL AQUATIC RESOURCE SURVEYS 2023-2027: ALGAL TOXIN ANALYSIS | 541620 | ID | $390,160 | Apr 1, 202819 mo 3 offers | |
| EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCRAF-ESO: THE PURPOSE OF THIS TASK ORDER IS TO CONDUCT SAMPLING ACTIVITIES, PROVIDE TECHNICAL SUPPORT, AND TO EVALUATE OPERATION OF RESIDENTIAL DRINKING WATER POINT-OF ENTRY TREATMENT SYSTEMS (POETS) AT THE OLD WILMINGTON SUPERFUND SITE (SITE), OPERAB | 562910 | MD | $389,320 | Oct 2, 202713 mo 2 offers | |
| TOEROEK ASSOCIATES, INC.US EPA, REGION 7 RCRA IOWA INSPECTIONS | 541620 | KS | $385,473 | Dec 31, 20263 mo | |
| AIRGAS USA, LLCEPA R3 ESC COMPRESSED AND LIQUIFIED LABORATORY GASES | 325120 | MD | $381,787 | Sep 30, 202712 mo 3 offers | |
| TRC ENVIRONMENTAL CORPORATIONEPA RESEARCH TRIANGLE PARK, NORTH CAROLINA IS RESPONSIBLE FOR PROCURING, TESTING, AND DISTRIBUTING FILTERS OF HIGH PURITY TO THE STATE/LOCAL AIR POLLUTION CONTROL AGENCIES. THE QUARTZ FILTERS ARE USED WITH A SIZE SELECTIVE SAMPLER (SSI) TO COLLECT PM | 541380 | NC | $381,680 | Aug 31, 202711 mo 2 offers | |
| S.S. PAPADOPULOS & ASSOCIATES, INC.GEOS4 SUPPORT FOR BENDIX CORP./ALLIED AUTOMOTIVE SUPERFUND SITE (SSID 05AS) | 541620 | MD | $380,697 | Sep 8, 202712 mo | |
| RIGAKU AMERICAS HOLDING, INC.TATD FFP PROCUREMENT: WAVELENGTH DISPERSIVE X-RAY SPECTROMETER (WD-XRF) | 334516 | MI | $379,603 | Dec 4, 20263 mo 2 offers | |
| BATTELLE MEMORIAL INSTITUTETECHNICAL SUPPORT FOR THE NATIONAL MONITORING NETWORKS QA PROGRAMS. COR: BRANNON SEAY/ALT COR: GREG NOAH/POC: TAMARA PARKER CONTRACT BPA: BATTELLE: 68HERD21A0001 | 541611 | OH | $378,231 | Sep 21, 20260 mo | |
| TECHLAW CONSULTANTS INCTASK ORDER FIELDS BROOK | 562910 | VA | $378,081 | Jul 31, 202822 mo 1 offer | |
| ENVIRONMENTAL RESTORATION LLCEPA R7 ESO FOR VIENNA WELLS LONG-TERM RESPONSE ACTION (LTRA) TECHNICAL SUPPORT SERVICES, VIENNA, MISSOURI. | 562910 | MO | $376,964 | Dec 19, 20263 mo 1 offer | |
| CHINOOK SYSTEMS INCCOMMISSIONING PHASE SERVICES FOR THE LABORATORY CONSOLIDATION PROJECT AT ROBERT S. KERR ENVIRONMENTAL RESEARCH CENTER US EPA FACILITY ADA, OK. | 541330 | FL | $376,655 | Jan 12, 20274 mo 1 offer | |
| RURAL AND TRIBAL ENVIRONMENTAL SOLUTIONS, INCTHIS ACTION AWARDS A CALL ORDER FOR SANITARY SURVEYS AND TECHNICAL ASSISTANCE FOR A BASE PERIOD PLUS 4 OPTION PERIODS TO CONTRACT 68HE0824A0001. | 541620 | CO | $372,339 | Jan 31, 202928 mo | |
| HAZTRAIN INCEMERGENCY RESPONSE TRAINING PROGRAM (ERTP) SMALL - ADMIN CALL ORDER. THIS CALL ORDER REPLACES 68HERH21A0007/68HERH24F0457 FOR THE SAME REQUIREMENT. | 541620 | DC | $368,382 | Aug 27, 20260 mo | |
| RURAL AND TRIBAL ENVIRONMENTAL SOLUTIONS, INCBPA CALL FOR LEVEL 2 (L2) ASSESSMENTS AGAINST BPA 68HE0824A0001 - WYOMING | 541620 | CO | $366,962 | Jul 1, 202934 mo | |
| THE REMI GROUP LLC2024 CRL EQUIPMENT MANAGEMENT PLAN | 561210 | IL | $366,131 | Oct 3, 20261 mo 1 offer | |
| THE CADMUS GROUP LLCR425 - REGION 9 TRIBAL DIRECT IMPLEMENTATION 2025-2026 SANITARY SURVEYS FOR DRINKING WATER SYSTEMS | 541620 | MA | $360,544 | Dec 31, 20263 mo | |
| HELIOTECHTHIS TASK ORDER IS FOR THE ROTO-FINISH ESO SITE | 562910 | MI | $357,424 | Jul 31, 202822 mo 3 offers | |
| ICF INCORPORATED, L.L.C.CONVENING AND FACILITATION SUPPORT (TO-0017) | 541715 | VA | $357,211 | Oct 31, 202713 mo | |