National Air Balance Company, Inc.

What National Air Balance Company, Inc. does

National Air Balance Company, Inc. (NABCO) is an independent Test and Balance (TAB) firm founded in 1968 and headquartered in Pleasanton, California. The company provides HVAC testing, balancing, and commissioning services for the built environment, operating across California and Nevada from offices in the Bay Area, Sacramento, Central Valley, and Reno. NABCO serves enterprise and institutional clients in healthcare, commercial office, education, government, life sciences, sports and entertainment, hospitality, and distribution; its marquee customer base includes Google, Apple, Salesforce, Meta/Facebook, UCSF, Kaiser Permanente, Stanford, the San Francisco 49ers, BART, and Amazon, with several of these relationships documented as multi-decade.

The firm's core offering is Total System Balancing (TSB), which encompasses air balance, hydronic balance, control system verification, smoke management system testing, fume hood certification, Title 24 mechanical acceptance testing, and door fan and duct leakage testing. NABCO extends into building commissioning via AABC Commissioning Group (ACG) certification. Its technical methodology is grounded in ANSI-accredited AABC National Standards, and field technicians complete a rigorous five-year TABB certification program. AABC membership prohibits affiliation with mechanical contractors, design engineers, or equipment manufacturers, creating a structural conflict-of-interest firewall that is often a hard requirement in healthcare, government, and life science procurement.

NABCO generates revenue through project-based professional services contracts, with pricing determined by scope, complexity, and square footage rather than published tiers. The firm employs roughly 55 people and operates an enterprise field-sales motion targeting general contractors, mechanical contractors, design engineers, and building owners. It is privately held and closely held, with family ties evident across CEO Duane Davies, President Greg Rothe, Controller Dalton Rothe, and other leadership positions. Distribution is direct via field service delivery, supplemented by visibility through AABC, SMACNA, and ASHRAE participation, a project case-study library, and an active LinkedIn presence.

Name

National Air Balance Company, Inc.

Legal name

National Air Balance Company, Inc.

Website

https://nabco.biz

Company type

Private

Founded year

1968

Operating status

Operating

Short description

National Air Balance Company (NABCO) is an independent Test and Balance firm providing HVAC testing, balancing, and commissioning services for healthcare, commercial, government, and institutional facilities across California and Nevada.

Ownership category

akta.pro rank

Product category

HVAC Test and Balance Services

NAICS

Electronic and Precision Equipment Repair and Maintenance (81121)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Indoor Air Quality (IAQ) Testing & Monitoring (HSAOAIAD)

Keywords

• HVAC test and balance
• Air and hydronic balancing
• Building commissioning services
• Mechanical acceptance testing
• HVAC system verification

Headquarters

HQ city

Pleasanton

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Test and Balance Services: Professional services revenue generated from providing independent Test & Balance (TAB) services for HVAC systems in the built environment. Services include air balance, hydronic balance, control system verification, and compliance testing for commercial, healthcare, education, and government projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

National Air Balance Company, Inc. (NABCO) provides independent Test and Balance (TAB) services for heating, ventilation, and air-conditioning (HVAC) systems in commercial, institutional, healthcare, and government buildings. The core offering is Total System Balancing (TSB), which tests and balances HVAC systems and related controls to achieve verified optimal performance, delivered by certified technicians through field-based project execution across California and Nevada.

Product overview

National Air Balance Company, Inc. (NABCO) provides Test and Balance (TAB) services for Heating, Ventilation and Air-Conditioning (HVAC) systems. The company's primary offering is Total System Balancing (TSB), which includes testing and balancing HVAC systems and related control systems for optimal performance. NABCO offers a comprehensive suite of TAB services including air balance, hydronic balance, smoke management testing, door fan testing, duct leakage testing, fume hood certification, and Title 24 mechanical acceptance testing. The company also extends services into commissioning (Cx) through AABC Commissioning Group (ACG) certification. All services are delivered by certified technicians trained through a rigorous 5-year certification program, with AABC membership ensuring independence from mechanical contractors, design engineers, or equipment manufacturers to prevent conflicts of interest.

Differentiator

Problem solved

Functional benefit

Products and services

• Total System Balancing (TSB)
• Test and Balance (TAB) Services
• Commissioning (Cx) Services
• Title 24 Mechanical Acceptance Testing
• HCAI/JCACO Compliance Testing
• Fume Hood Testing and Certification
• Existing System Surveys

Quantifiable outcome

• Optimal HVAC system performance with verified test results
• +2 more outcomes

Named customers17 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Four partnerships are on record, tiered core.

• Associated Air Balance Council (AABC)coreStrategic or Co-development PartnerAABC is the world's leader in the Independent Test and Balance (TAB) industry. It is the only TAB certifying organization that prohibits its members from having any affiliation with mechanical contractors, design engineers, or equipment manufacturers, ensuring objective and unbiased services. AABC is accredited by ANSI and sets the most comprehensive and widely respected national standards for Total System Balance (TSB).
• Testing Adjusting and Balancing Bureau (TABB)coreStrategic or Co-development PartnerTABB provides certification for TAB technicians. Each NABCO technician undergoes a rigorous 5-year training program and obtains certifications for the suite of Test and Balance services offered.
• AABC Commissioning Group (ACG)coreStrategic or Co-development PartnerAABC Commissioning Group extends NABCO's suite of services into the Commissioning (Cx) arena, allowing the firm to strategically partner with clients in the most equitable way.
• American National Standards Institute (ANSI)coreStrategic or Co-development PartnerANSI has accredited AABC National Standards for Total System Balance (TSB), which are the most comprehensive and widely respected in the TAB industry.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• ME Engineers: National MEP engineering and commissioning firm that overlaps with NABCO's commissioning (Cx) work on large commercial, sports, and healthcare projects where both firms are engaged.
• Affiliated Engineers, Inc. (AEI): Large national MEP consulting engineering firm with active commissioning practice serving healthcare, university, and research clients that overlap with NABCO's life-science and healthcare verticals.
• Southland Industries: Large mechanical contractor with design, build, and TAB-adjacent commissioning practices; competes for commissioning and lifecycle services on the same large commercial and healthcare projects NABCO services.
• EMCOR Group, Inc. Diversified facility services and mechanical contractor whose mechanical installation and building-services divisions sometimes bundle TAB and commissioning work, competing for portions of NABCO's project scope.

Direct peers

• TAB Services, Inc. Independent Test & Balance contractor providing air and hydronic balancing and HVAC testing services for commercial buildings across multiple U.S. regions; directly comparable pure-play competitor.
• Engineered Air Balance Co., Inc. Long-standing AABC-member independent TAB firm offering air and hydronic balance, commissioning, and sound/vibration testing; comparable scope, certifications, and customer base to NABCO.
• Hargis + Associates, Inc. Independent Test & Balance firm with AABC/TABB certifications serving the western U.S., directly comparable to NABCO in service mix, certifications, and project types.

Others

• ACCO Engineered Systems: West Coast mechanical contractor that often performs initial system setup and TAB on projects where NABCO serves as the independent third-party tester; adjacent rather than directly competing, as NABCO's independence prohibits affiliation.

Emerging players

• 4EA Building Sciences: Boutique commissioning and energy consulting firm focused on high-performance and zero-net-energy buildings in California; competes for commissioning engagements on LEED-targeted projects in NABCO's geography.
• kW Engineering (now part of Stantec): Energy and commissioning consultancy historically serving California public agencies and K-12 districts; overlaps with NABCO's Title 24 commissioning workflow on government and education campuses.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/national-air-balance-company-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about National Air Balance Company, Inc.