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Our Story
While this once small, family-owned construction company is now a large, multi-discipline, employee-owned firm, one thing hasn’t changed — the Nabholz name has been synonymous with integrity since Bob Nabholz founded the business in 1949. Integrity is what motivates our purpose and our guiding principles, and it’s the foundation for every project we touch.
But above all, integrity means valuing people. Valuing our employees by being a leader in job site safety, operating a nationally recognized wellness program, and providing ongoing advancement opportunities. Valuing our clients through hard work, rapid response, and respect. Valuing our subcontractors, design teams, and all those who play a role in our projects with an open-door policy and honest communication.
These concepts are more than words on a page; they are the truths this company lives by, truths that have been proven time and again over our seven decades in operation.
Commercial Experience
Regions & Counties Serviced
- Oklahoma
Oklahoma 1
- Oklahoma
Our CSI Codes
01 24 13 - Value Engineering
01 29 83 - Payment Procedures for Testing Laboratory Services
01 31 13 - Project Coordination
01 31 19.13 - Preconstruction Meetings
01 35 16 - Alteration Project Procedures
01 53 26 - Temporary Runarounds
01 55 19 - Temporary Parking Areas
01 55 23 - Temporary Roads
01 73 16 - Erection
01 84 19 - Interior Finishes Performance Requirements
01 85 00.00.01 - Conveying Equipment Performance Requirements
01 87 13 - Equipment Performance Requirements
01 88 16 - Selective Construction Performance Requirements
01 89 13 - Site Preparation Performance Requirements
01 89 16 - Site Improvements Performance Requirements
01 89 19 - Site Plumbing Utilities Performance Requirements
01 89 23 - Site HVAC Utilities Performance Requirements
01 89 26 - Site Electrical Utilities Performance Requirements
01 89 29 - Other Site Construction Performance Requirements
01 91 23 - Interiors Commissioning
01 91 23.13 - Interior Construction Commissioning
01 91 23.43 - Stairways Commissioning
01 93 13 - Facility Maintenance Procedures
02 01 80 - Maintenance of Facility Remediation
02 31 19 - Magnetic Investigations
02 31 23 - Electromagnetic Investigations
02 32 19 - Exploratory Excavations
02 58 16 - Snow Avalanche Control
03 08 00.00.01 - Commissioning of Concrete
03 37 23 - Roller-Compacted Concrete
04 08 00.00.01 - Commissioning of Masonry
07 01 80 - Maintenance of Fire and Smoke Protection
07 06 80 - Schedules for Fire and Smoke Protection
07 06 80.16 - Firestopping Schedule
13 34 19 - Metal Building Systems
21 05 33 - Heat Tracing for Fire-Suppression Piping
22 05 33 - Heat Tracing for Plumbing Piping
23 05 33 - Heat Tracing for HVAC Piping
31 06 20.13 - Trench Dimension Schedule
31 10 00.00.01 - Site Clearing
31 14 13.23 - Topsoil Stripping and Stockpiling
31 22 16.13 - Roadway Subgrade Reshaping
31 23 13 - Subgrade Preparation
31 30 00.00.01 - Earthwork Methods
32 01 30 - Operation and Maintenance of Site Improvements
32 06 30 - Schedules for Site Improvements
32 30 00.00.01 - Site Improvements
32 71 00.00.01 - Constructed Wetlands
32 72 00.00.01 - Wetlands Restoration
33 47 16.13 - Pond Covers
33 47 16.53 - Reservoir Covers
33 47 19.13 - Water Distribution Ponds
33 47 19.16 - Water Retainage Reservoirs
33 47 19.23 - Cooling Water Ponds
33 47 19.33 - Fire-Protection Water Ponds
33 47 23 - Sanitary Sewerage Lagoons
33 47 26 - Storm Drainage Ponds and Reservoirs
33 47 26.13 - Stabilization Ponds
33 47 26.16 - Retention Basins
33 47 26.19 - Leaching Pits
34 01 13 - Operation and Maintenance of Roadways
34 01 43 - Operation and Maintenance of Bridges
34 05 13 - Common Work Results for Roadways
34 05 43 - Common Work Results for Bridges
34 06 13 - Schedules for Roadways
34 06 43 - Schedules for Bridges
34 73 23 - Manufactured Airfield Control Towers
35 73 13 - Earth Embankment Dam
40 41 13 - Process Piping Heat Tracing
40 41 13.13 - Process Piping Electrical Resistance Heat Tracing
40 41 13.16 - Process Piping Electrical Conductance Heat Tracing
40 41 13.19 - Process Piping Gas Heat Tracing
40 41 13.23 - Process Piping Steam Heat Tracing
40 41 13.26 - Process Piping Thermal Fluids Heat Tracing
40 41 23 - Process Equipment Heat Tracing
40 41 23.13 - Process Equipment Electrical Resistance Heat Tracing
40 41 23.16 - Process Equipment Electrical Conductance Heat Tracing
40 41 23.19 - Process Equipment Gas Heat Tracing
40 41 23.23 - Process Equipment Steam Heat Tracing
40 41 23.26 - Process Equipment Thermal Fluids Heat Tracing
41 01 40 - Operation and Maintenance of Container Processing and Packaging
41 01 60 - Operation and Maintenance of Mobile Plant Equipment
41 06 40 - Schedules for Container Processing and Packaging
41 06 50 - Schedules for Material Storage
41 06 60 - Schedules for Mobile Plant Equipment
41 08 10 - Commissioning of Bulk Material Processing Equipment
41 08 20 - Commissioning of Piece Material Handling Equipment
41 08 40 - Commissioning of Container Processing and Packaging
41 08 50 - Commissioning of Material Storage
41 08 60 - Commissioning of Mobile Plant Equipment
43 01 30 - Operation and Maintenance of Gas and Liquid Hi-Purification Equipment
