| | 2020 STACKVISION DASPROTECT FOR NIH CENTRAL UTILITY PLANT | ENVIRONMENTAL SYSTEMS CORP | $13,125 | NATIONAL INSTITUTES OF HEALTH | NATIONAL INSTITUTES OF HEALTH | — | 511210 | R408SUPPORT- PROFESSIONAL: PROGRAM MANAGEMENT/SUPPORT | Feb 19, 2020 | Feb 19, 2020 | Dec 31, 2020 |
| | IGF::OT:: MAINTENANCE AGREEMENT AND EDR REPORTING SERVICE FOR THE CEMS AT HOTD | ENVIRONMENTAL SYSTEMS CORP | $288,750 | PUBLIC BUILDINGS SERVICE | PUBLIC BUILDINGS SERVICE | — | 561210Facilities Support Services | Z1AAMAINTENANCE OF OFFICE BUILDINGS | Oct 31, 2018 | Nov 1, 2018 | Dec 31, 2023 |
| | IGF::OT::IGF FOR OTHER FUNCTIONS QUARTERLY REPORTING SERVICES | ENVIRONMENTAL SYSTEMS CORP | $495,000 | PUBLIC BUILDINGS SERVICE | PUBLIC BUILDINGS SERVICE | — | 541330Engineering Services | F101ENVIRONMENTAL SYSTEMS PROTECTION- AIR QUALITY SUPPORT | Dec 12, 2013 | Dec 12, 2013 | Oct 31, 2018 |
| | CONTRACT FOR CEMS DATA MANAGEMENT | ENVIRONMENTAL SYSTEMS CORP | $494,000 | PUBLIC BUILDINGS SERVICE | PUBLIC BUILDINGS SERVICE | — | 541330Engineering Services | F110ENVIRON SYS PROTECT- DEVELOPMENT OF ENVIRON IMPACT STMTS/ASSESSMENTS, TECH ANALYSIS/ENVIRON AUDITS | Oct 18, 2011 | Oct 12, 2011 | Oct 31, 2013 |
| | CEMS SERVER UPGRADE AT THE CENTRAL HEATING AND REFRIGERATION PLANT IN WASHINGTON, DC | ENVIRONMENTAL SYSTEMS CORP | $12,730 | PUBLIC BUILDINGS SERVICE | PUBLIC BUILDINGS SERVICE | — | 541330Engineering Services | R414 | Nov 2, 2010 | Nov 1, 2010 | May 9, 2011 |
| | FULL QA/QC PLAN UPDATE FOR CEMS | ENVIRONMENTAL SYSTEMS CORP | $0 | Public Buildings Service | Public Buildings Service | — | 541330Engineering Services | H152QUALITY CONTROL- MEASURING TOOLS | Jun 23, 2010 | Jun 23, 2010 | Dec 31, 2010 |
| | CEMS DASPROTECT FORTRESS PLUS AGREEMENT, CENTRAL HEATING & REFRIGERATION PLANT, 13TH AND C STREETS, SW., WASHINGTON, DC | ENVIRONMENTAL SYSTEMS CORP | $110,000 | PUBLIC BUILDINGS SERVICE | PUBLIC BUILDINGS SERVICE | — | 238290Other Building Equipment Contractors | M242 | Dec 2, 2009 | Dec 2, 2009 | Dec 31, 2011 |
| | CEMS CONVERSION & TRANSITION TO SML/ECMPS REPORTING CAPABILITIES. | ENVIRONMENTAL SYSTEMS CORP | $21,250 | PUBLIC BUILDINGS SERVICE | — | — | 238290Other Building Equipment Contractors | M242 | Apr 9, 2009 | Apr 9, 2009 | Apr 17, 2009 |
| | CONVERSION AND ANNUAL SERVICES ON CEMS. | ENVIRONMENTAL SYSTEMS CORP | $0 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | M242 | Nov 28, 2008 | Nov 28, 2008 | Dec 31, 2011 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $24,900 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | — | May 22, 2008 | May 22, 2008 | May 21, 2009 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $19,800 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | J045MAINT/REPAIR/REBUILD OF EQUIPMENT- PLUMBING, HEATING, AND WASTE DISPOSAL EQUIPMENT | Feb 26, 2008 | Feb 26, 2008 | Jan 31, 2009 |
| | CEMS DATA LOGGERS/CONTROLLERS AND ASSOCIATED DATA MANAGEMENT SYSTEM AT THE GSA/HOTD CENTRAL HEATING & REFRIGERATION PLANT. | ENVIRONMENTAL SYSTEMS CORP | $54,655 | PUBLIC BUILDINGS SERVICE | — | — | 443120 | D313 | Apr 9, 2007 | Apr 9, 2007 | May 13, 2007 |
| | NOT REQUIRED | ENVIRONMENTAL SYSTEMS CORP | $19,773 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | H149QUALITY CONTROL- MAINTENANCE AND REPAIR SHOP EQUIPMENT | Mar 30, 2007 | Mar 30, 2007 | Sep 30, 2007 |
| | NOX SIP CALL QA/QC SERVICES AND EDR REPORTING FOR ALL FOUR QUARTERS IN 2007. | ENVIRONMENTAL SYSTEMS CORP | $19,800 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | H199QUALITY CONTROL- MISCELLANEOUS | Mar 22, 2007 | Mar 22, 2007 | Dec 31, 2007 |
| | NOX SIP REVIEW AND REPORTING SERVICES FOR BOILERS AT CENTRAL HEATING PLANT. | ENVIRONMENTAL SYSTEMS CORP | $19,400 | PUBLIC BUILDINGS SERVICE | — | — | 541620Environmental Consulting Services | B510SPECIAL STUDIES/ANALYSIS- ENVIRONMENTAL ASSESSMENTS | Apr 28, 2006 | Apr 28, 2006 | Dec 31, 2006 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $23,072 | PUBLIC BUILDINGS SERVICE | — | — | 221330Steam and Air-Conditioning Supply | 4410INDUSTRIAL BOILERS | Mar 24, 2006 | Mar 24, 2006 | Sep 30, 2006 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $4,050 | ENVIRONMENTAL PROTECTION AGENCY | — | — | 335999All Other Miscellaneous Electrical Equipment and Component Manufacturing | 6625ELECTRICAL AND ELECTRONIC PROPERTIES MEASURING AND TESTING INSTRUMENTS | Aug 17, 2005 | Aug 17, 2005 | Sep 30, 2006 |
| | REINSULATE ELLIPSE STEAM LINES UNDER ESPC. | ENVIRONMENTAL SYSTEMS CORP | $18,446 | PUBLIC BUILDINGS SERVICE | — | — | 221310Water Supply and Irrigation Systems | 2825STEAM TURBINES AND COMPONENTS | Mar 28, 2005 | Mar 29, 2005 | Apr 2, 2006 |
| | CONTRACTOR SHALL PROVIDE EQUIPMENT SUPPLY AND SUPERVISION TO PROVIDE AN EXTENDED MAINTEANCE FOR THE CEMS SOFTWARE AND HARDWARE . | ENVIRONMENTAL SYSTEMS CORP | $23,402 | PUBLIC BUILDINGS SERVICE | — | — | 237110Water and Sewer Line and Related Structures Construction | 4410INDUSTRIAL BOILERS | Mar 27, 2005 | Mar 28, 2005 | Apr 21, 2005 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $15,310 | ENVIRONMENTAL PROTECTION AGENCY | — | — | 541330Engineering Services | R425SUPPORT- PROFESSIONAL: ENGINEERING/TECHNICAL | Feb 7, 2005 | Feb 7, 2005 | Feb 28, 2005 |
| | ENVIRONMENTAL SERVICES | ENVIRONMENTAL SYSTEMS CORP | $16,000 | PUBLIC BUILDINGS SERVICE | — | — | 541990All Other Professional, Scientific, and Technical Services | AJ31 | Apr 15, 2004 | Apr 14, 2004 | Dec 31, 2004 |
| | RATA SERVICES | ENVIRONMENTAL SYSTEMS CORP | $97,340 | PUBLIC BUILDINGS SERVICE | — | — | 234910 | 2825STEAM TURBINES AND COMPONENTS | Nov 5, 2003 | Nov 5, 2003 | Oct 28, 2003 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $0 | PUBLIC BUILDINGS SERVICE | — | — | 235990 | F101ENVIRONMENTAL SYSTEMS PROTECTION- AIR QUALITY SUPPORT | May 15, 2003 | May 15, 2003 | Dec 15, 2003 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $0 | PUBLIC BUILDINGS SERVICE | — | — | 541330Engineering Services | D313 | Oct 15, 2002 | Oct 15, 2002 | Oct 15, 2003 |
| | — | ENVIRONMENTAL SYSTEMS CORP | $0 | DEPT OF THE ARMY | — | — | 334611 | D399 | Mar 20, 2002 | Mar 20, 2002 | — |