Contract 75N99023F00002
Addon Services Llc · Department Of Health And Human Services · October 13, 2022
Addon Services Llc was awarded a federal contract by Department Of Health And Human Services (National Institutes Of Health) on October 13, 2022 for $33.41 million of work in commercial and institutional building construction. Performance is in Durham, NC. This is a task or delivery order issued under parent IDIQ 75N99023D00013. The contract has been modified 200 times since the base award It uses firm fixed-price contract pricing. The most recent modification was on April 13, 2026.
Contract details
- PIID
- 75N99023F00002
- Parent IDIQ
- 75N99023D00013
- Award type
- Delivery Order
- Pricing
- Firm Fixed Price
- Competition
- Full And Open Competition After Exclusion Of Sources
- NAICS
- 236220 · Commercial And Institutional Building Construction
- Product / service
- Maintenance Of Government-Owned Government-Operated (Gogo) R&D Facilities
- Place of performance
- Durham, NC
- First action
- October 13, 2022
- Latest action
- April 13, 2026
Description
C105342-NIEHS BLDG 101 E MODULE ROOF REFURBISHMENT NEEDED TO PREVENT STRUCTURAL DAMAGE-ALISON KARVER
Modification timeline
-
April 13, 2026Mod P00007$0
-
March 26, 2026Mod P00007C109708 NIDDK BUILDING 5, B1-38 LAB RENOVATION CONSTRUCTION SERVICES THE REASON FOR THIS MODIFICATION IS TO ISSUE AN REA AND EXTEND THE COMPLETION DATE FROM 08/$47.9K
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March 5, 2026Mod P00004C112825 - TIME EXTENSION - A/E DESIGN SERVICES FOR SUBJECT WORK ORDER FROM 15% CONCEPT AND EVALUATION THROUGH PROJECT CLOSEOUT, BLDG. 10$1.7K
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February 27, 2026Mod P00010C108217 FACILITIES AND MAINTENANCE CHANGES DUE TO UNFORESEEN SITE CONDITIONS PER SOW$24.9K
-
February 18, 2026Mod P00006$91.8K
-
January 20, 2026Mod P00001C103754 - ACTIVATION PLANNING & EQUIPMENT PROCUREMENT SUPPORT. THE REASON FOR THIS MODIFICATION IS TO EXTEND THE PERIOD OF PERFORMANCE TO COMPLETE THE WORK OUTL$0
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December 5, 2025Mod P00009C108217 FACILITIES AND MAINTENANCE CHANGES DUE TO UNFORESEEN SITE CONDITIONS PER SOW$0
-
November 21, 2025Mod P00008C108217 FACILITIES AND MAINTENANCE CHANGES DUE TO UNFORESEEN SITE CONDITIONS PER SOW$54.2K
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August 22, 2025Mod P00002C102579 - COMMISSIONING FOR CHILLER REPLACEMENT -PERIOD OF PERFORMANCE TO JUNE 30, 2024.$0
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August 14, 2025Mod P00007C109665 (CONSTRUCTION SERVICES) - BLDG. 10, RECONFIGURE RMS. 9N105-9N109 & CONVERT BLDG. 10, RM. 9N101 TO TISSUE CULTURE ROOM WITH BSL2 CAPACITY - ARCHANA BHASI$41.7K
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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 |
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Frequently asked questions
What is contract 75N99023F00002?
Contract 75N99023F00002 is a federal contract awarded to Addon Services Llc by Department Of Health And Human Services on October 13, 2022 for $33.41 million of work classified under COMMERCIAL AND INSTITUTIONAL BUILDING CONSTRUCTION. It has been modified 200 times since the base award.
Who won contract 75N99023F00002?
Addon Services Llc won contract 75N99023F00002 from Department Of Health And Human Services.
How much is contract 75N99023F00002 worth?
Contract 75N99023F00002 has obligated $33.41 million to date.