A. T. KLEMENS & SON
A. T. KLEMENS & SON is a federal contractor, registered under UEI ZNBNMLHAMCZ3 and CAGE code 48670. It has been awarded $661,037 in federal contracts. Primary work spans Plumbing, Heating, and Air-Conditioning Contractors, Unknown NAICS, and Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance. Top awarding agencies include Department Of Defense, Department Of The Interior, and General Services Administration (gsa).
Contact Information
Registration and classification details
Registration
UEI Code
ZNBNMLHAMCZ3CAGE Code
48670Entity Structure
Corporate Entity (Not Tax Exempt)Established
N/ABusiness Classifications
NAICS Codes
Federal Contracting Overview
Award totals, agency breakdown, NAICS distribution, and geographic footprint.
AI Capability Profile
A. T. KLEMENS & SON specializes in the installation and integration of split air conditioning systems and related HVAC infrastructure for federal facilities, with demonstrated expertise in precision climate control solutions for sensitive operational environments. Their technical capabilities includ...
A. T. KLEMENS & SON specializes in the installation and integration of split air conditioning systems and related HVAC infrastructure for federal facilities, with demonstrated expertise in precision climate control solutions for sensitive operational environments. Their technical capabilities include ductless mini-split system deployment, refrigerant line routing, electrical load balancing, and thermostat integration—skills critical for maintaining environmental compliance in law enforcement and wildlife management facilities. The contractor’s work emphasizes energy-efficient, low-profile HVAC installations that minimize structural disruption while ensuring optimal thermal performance in mission-critical spaces. Their approach reflects a strong understanding of building science, airflow dynamics, and system zoning tailored to federal facility requirements. The company has delivered services to the Department of the Interior, specifically supporting the U.S. Fish and Wildlife Service with climate control upgrades for special agent operations centers. This engagement suggests a pattern of working with federal land management and conservation agencies that require reliable, quiet, and space-efficient HVAC systems in remote or retrofit-sensitive locations. Their experience aligns with the unique operational needs of federal sites where environmental control supports both personnel comfort and equipment integrity. Operating under NAICS 238220, A. T. KLEMENS & SON focuses on plumbing, heating, and air-conditioning contracting, with a narrow but specialized vertical in non-ducted, high-efficiency cooling systems for federal infrastructure. This positions them as a niche provider for agencies requiring targeted HVAC interventions rather than full-scale renovations. Their market presence is defined by precision installations in existing federal buildings, emphasizing minimal downtime and code-compliant execution. As a small business structured as a 2L entity based in Great Falls, Montana, the contractor maintains a regional footprint with direct access to federal facilities across the Northern Rockies. While no formal government certifications are listed, their ability to secure and execute federal contracts demonstrates proven compliance with procurement standards and facility-specific technical requirements.
Key Performance Metrics
Awards Count
19
All time
Active
0
Currently performing
Completed
19
Past period of performance
Total Awards
All time
Contracts
Prime · all time
Subcontracts
Sub · all time
Grants
Prime · all time
Subgrants
Sub · all time
Award Analytics & Distribution
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