Contract W9128F21F0285
Markon Llc · Department Of Defense · September 24, 2021
Markon Llc was awarded a federal contract by Department Of Defense (Department Of The Army) on September 24, 2021 for $8.65 million of work in commercial and institutional building construction. Performance is in Aurora, CO. This is a task or delivery order issued under parent IDIQ GS00F0012Y. The contract has been modified 8 times since the base award It uses firm fixed-price contract pricing. The most recent modification was on December 19, 2025.
Contract details
- PIID
- W9128F21F0285
- Parent IDIQ
- GS00F0012Y
- Award type
- Delivery Order
- Pricing
- Firm Fixed Price
- Competition
- Full And Open Competition
- NAICS
- 236220 · Commercial And Institutional Building Construction
- Product / service
- Support- Professional: Program Management/Support
- Place of performance
- Aurora, CO
- First action
- September 24, 2021
- Latest action
- December 19, 2025
Description
THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE THE OPTION TO EXTEND THE PERIOD OF PERFORMANCE BY 6-MONTHS UNDER AUTHORITY 52.217-8 AND FUNDING THE 6-MONTH EXTENSION IN CONJUNCTION WITH CLIN 0007 UNDE
Modification timeline
-
December 19, 2025Mod P00008THE PURPOSE OF THIS MODIFICATION IS TO EXERCISE THE OPTION TO EXTEND THE PERIOD OF PERFORMANCE BY 6-MONTHS UNDER AUTHORITY 52.217-8 AND FUNDING THE 6-MONTH EXTE$799.8K
-
December 1, 2025Mod P00007CNS & MGMT SUPPORT (YEAR 2)$0
-
December 23, 2024Mod P00006CNS & MGMT SUPPORT (YEAR 3)$1.60M
-
May 21, 2024Mod P00005CNS & MGMT SUPPORT (YEAR 2) MOD P0005 ADDS QA INSPECTIONS TO SOS$42.7K
-
December 21, 2023Mod P00004CNS & MGMT SUPPORT EXERCISE OPTION YEAR 2$2.11M
-
February 27, 2023Mod P00003CONSTRUCTION AND PROGRAM MANAGEMENT SUPPORT SERVICES NOVATION AGREEMENT$0
-
December 29, 2022Mod P00002CONSTRUCTION MANAGEMENT SUPPORT SERVICES EXERCISE OPTION YEAR 1$2.07M
-
September 6, 2022Mod P00001CNS & MGMT SUPPORT (BASE YEAR)$0
-
September 24, 2021Base awardCNS & MGMT SUPPORT (BASE YEAR)$2.03M
Similar contracts
| Recipient | Agency | Date | Obligated |
|---|---|---|---|
| Clark Construction Group Llc | Department Of Defense | March 17, 2026 | $616.27M |
| Machis Mid-Atlantic, Inc. | Department Of Defense | January 1, 2026 | $17.97M |
| Kooheji Contractors W.L.L | Department Of Defense | December 31, 2025 | $1.16M |
| Nakasato Contracting Llc | Department Of Defense | December 31, 2025 | $7.91M |
| Koman Construction, Llc | Department Of Defense | December 31, 2025 | $1.43M |
| West Coast Jv, Llc | Department Of Defense | December 31, 2025 | $3.7K |
Top contractors in NAICS 236220
Lifetime obligated dollars across all federal contracts in this NAICS code.
| # | Contractor | Contracts | Obligated |
|---|---|---|---|
| 1 | Bl Harbert International Llc | 198 | $15.79B |
| 2 | Fisher Sand & Gravel Co | 14 | $8.97B |
| 3 | Caddell Construction Co. (De), Llc | 67 | $7.56B |
| 4 | Whiting-Turner Contracting Company, The | 347 | $7.54B |
| 5 | Clark Construction Group Llc | 83 | $6.72B |
| 6 | Hensel Phelps Construction Co | 97 | $6.11B |
| 7 | Harper Construction Company, Inc. | 108 | $4.21B |
| 8 | Grunley Construction Co., Inc. | 235 | $4.10B |
| 9 | Gilbane Federal | 396 | $4.00B |
| 10 | Environmental Chemical Corporation | 225 | $3.69B |
Track this on BesaGov
Get a free weekly email when this changes — new awards, new sub-awards, new opportunities. No login required.
Continue learning
Keep researching
Frequently asked questions
What is contract W9128F21F0285?
Contract W9128F21F0285 is a federal contract awarded to Markon Llc by Department Of Defense on September 24, 2021 for $8.65 million of work classified under COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION. It has been modified 8 times since the base award.
Who won contract W9128F21F0285?
Markon Llc won contract W9128F21F0285 from Department Of Defense.
How much is contract W9128F21F0285 worth?
Contract W9128F21F0285 has obligated $8.65 million to date.