Air Conditioning Contractors of America

What Air Conditioning Contractors of America does

Air Conditioning Contractors of America (ACCA) is a national, member-driven trade association founded in 1968 and headquartered in Alexandria, Virginia, that serves HVACR (heating, ventilation, air conditioning, and refrigeration) contracting businesses across the United States. Its core offering is a portfolio of industry-defining technical standards, most notably Manual J (residential load calculation), Manual S (equipment selection), and Manual D (duct design), together with the ANSI ACCA ResNet ICC Standard 310, which collectively codify the procedures U.S. contractors follow for proper system design and installation. ACCA has productized access to these standards through the Ask ACCA AI assistant, a natural-language chat interface that lets contractors query the manuals conversationally. The association also operates a Quality Installation (QI) accreditation and certificate program, a contractor directory used by homeowners and building managers, and a multi-format training catalog spanning in-person, live-virtual, on-demand (via HSI), and credentialed programs such as EPA 608, A2L refrigerant safety, and EPIC instructor certification.

ACCA's business model combines recurring membership dues, event revenue (ACCA 2026/2027 annual conferences, Next Level, Smart Tech Summit, ComfortU), training and certification fees, QI certificate and accreditation fees (including a 2025 unlimited flat-fee option), advertising (ACCA Now Magazine, HVAC Blog), and publications. Members include thousands of contracting firms ranging from SMBs to mid-market operators, supported by affiliated state associations, MIX Group peer-networking chapters, and a consumer-facing Contractor Locator that funnels leads to accredited members. Beyond commercial services, ACCA plays an active federal and state advocacy role, most visibly in EPA refrigerant and AIM Act rulemaking, and is investing in workforce development through a $10 million apprenticeship initiative targeting 5,000 HVAC technicians by 2027. The organization is governed by a member-elected Board of Directors under President and CEO Barton James.

Name

Air Conditioning Contractors of America

Legal name

Air Conditioning Contractors of America Association, Inc.

Website

https://acca.org

Company type

Private

Founded year

1968

Operating status

Operating

Headcount range

11–50 employees

Short description

ACCA is the national U.S. trade association for HVACR contracting businesses, providing industry-standard technical manuals (Manual J/S/D), quality installation accreditation, education, events, workforce development, and federal advocacy on refrigerant and labor policy.

Ownership category

akta.pro rank

Product category

HVACR Trade Association Services

NAICS

Technical and Trade Schools (6115), Apprenticeship Training (611513)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

EPA 608 & Refrigerant Handling Compliance Training (EDAOACAN)

akta.pro secondary industry

Quality Management Systems (QMS) & ISO Training (ISO 9001/IATF/AS9100) (EDABAKAD)

Keywords

• HVACR technical standards
• Contractor trade association
• Quality installation accreditation
• HVACR workforce training
• Refrigerant certification programs

Headquarters

HQ city

Alexandria

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Membership Dues: ACCA generates primary revenue through annual membership dues from HVACR contracting businesses. No dues increase was implemented for 2025 per the Board of Directors decision.
2. Annual Conference and Events: ACCA organizes and hosts major annual conferences (ACCA 2026, ACCA 2027, Next Level, Smart Tech Summit, ComfortU) generating revenue through registration fees, sponsorships, and exhibitor fees.
3. Education and Training Programs: Revenue from in-person training, live virtual training, on-demand training, private training, instructor certification (EPIC), and refrigerant handling (EPA 608) certification courses.
4. QI Certificate and Accreditation Fees: Revenue from the Quality Installation (QI) Certificate program, accreditation fees, and the unlimited QI certificates flat-fee offering introduced in 2025.
5. Publications, Advertising, and Online Store: Revenue from ACCA Now Magazine advertising, the ACCA HVAC Blog advertising media kit, online store merchandise, and the Industry Buyer's Guide marketplace.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels10 records

Core offering

ACCA is a national trade association that develops and licenses proprietary HVACR technical standards (Manual J, S, D), delivers education, certification, and workforce training to HVACR contracting businesses, runs a Quality Installation (QI) accreditation and certificate program, and advocates on regulatory and legislative issues affecting the industry. Its offerings are anchored by the Ask ACCA AI assistant, an extensive events portfolio (ACCA Annual Conference, Next Level, Smart Tech Summit), and a $10 million apprenticeship program designed to train 5,000 new HVAC technicians by 2027.

Product overview

ACCA (Air Conditioning Contractors of America) is the national trade association for HVACR contracting businesses, offering a comprehensive portfolio of products and services organized around industry standards, education, workforce development, and professional recognition. The core technical products include Manual J, S, and D standards (residential HVAC load calculation, equipment selection, and duct design) accessible through the Ask ACCA AI assistant. Quality assurance offerings comprise the Quality Installation (QI) Certificate Program and QA Accreditation Program for contractor certification. Education and training products span online/on-demand training through HSI, in-person training, A2L Refrigerant Safety Training, Safety Series videos, Codes and Coffee webinars, and the annual conference events (ACCA 2027, Next Level Conference, Smart Tech Summit). The workforce development suite includes a $10 million HVAC Tech Apprenticeship Program targeting 5,000 technicians by 2027. Additional products include ACCA Now Magazine, ComforTools customer education materials, MIX Groups networking, Contractor of the Future research studies, and various digital tools like CalcuNow and Hey Ed. ACCA also publishes standards including ANSI ACCA Resnet ICC Standard 310 and provides EPA 608 refrigerant handling certification resources.

Differentiator

Problem solved

Functional benefit

Products and services

• Manual J, S, and D Standards ACCA's flagship technical standards for residential HVAC system design: Manual J calculates heating and cooling loads, Manual S selects properly sized equipment based on the load, and Manual D designs duct systems. These ANSI-recognized standards are the foundational procedures HVACR contractors follow for proper system design and are also embedded in the Ask ACCA AI assistant.
• Quality Installation (QI) Certificate Program Third-party verification program that enables HVACR contractors to certify the quality of individual residential and light commercial installations. Members use QI Certificates to prove installation quality to homeowners, efficiency programs, and utility incentives, helping them stand out in the market.
• QA Accreditation Program
• Ask ACCA AI Assistant An AI-powered chat assistant that gives HVACR contractors conversational access to ACCA's Manual J, S, and D technical standards. Users type questions in natural language and receive answers drawn from the standards, enabling quick lookup of load calculation, equipment selection, and duct design procedures on the job.
• Online Training Hub (ACCA/HSI) 24/7 on-demand online training platform for HVACR professionals, delivered in collaboration with HSI. Includes courses on Understanding Finance, Mentor Coaching, and an updated Residential HVAC program, supporting member professional development, credential maintenance, and career advancement.
• HVAC Tech Apprenticeship Program $10 million nationwide apprenticeship program training 5,000 new HVAC technicians by 2027 through partnerships with community colleges. Focuses on hands-on skills including refrigerant handling and smart system certification to address skilled labor shortages in the HVACR industry, with enrollment open to students and employers.
• ACCA Annual Conference (ACCA 2026 Las Vegas, ACCA 2027) Major annual national conference for HVACR contractors featuring four days of breakout sessions, exhibitor hall, networking events, and contractor awards ceremonies. ACCA 2026 is held at Caesars Palace in Las Vegas, and ACCA 2027 is announced as the next edition.
• Next Level Conference Leadership and professional development conference for HVACR service managers, operations managers, and learning and development managers, featuring three tracks: Effective Team Leadership, Recruiting and Skill Development, and Strategy and Communication.
• ACCA Smart Tech Summit Annual technology summit focused on smart, connected, and emerging HVACR technologies, addressing AI adoption, smart diagnostics, sustainable technologies, and the digital transformation of contracting businesses.
• ACCA Now Magazine ACCA's official industry magazine published in print for members and digitally online, covering HVACR technical topics, contractor profiles, business strategies, and ACCA news. Carries advertising as a revenue channel via the magazine media kit.
• Safety Series Training Videos Training video library for HVACR contractors and technicians covering essential safety protocols in the field, including fire extinguisher safety, hazard communication, OSHA compliance, and workplace safety.
• A2L Refrigerant Safety Training Specialized training covering the safety requirements, handling procedures, and code compliance for A2L (mildly flammable) refrigerants, supporting the industry's transition away from higher-GWP refrigerants under the AIM Act.
• Codes and Coffee Webinar Series Monthly webinar series focused on current HVACR code and law topics, hosted by ACCA's Manager of Codes and Standards with invited expert guests. Topics include GFCI compliance, supply chain forecasts, refrigerant transitions, and consumer market awareness, with an archived library for members.
• Refrigerant Handling (EPA 608) Certification Training and certification program covering EPA Section 608 refrigerant handling requirements, ensuring HVACR technicians are properly trained and certified on refrigerant management, recovery, and reclamation regulations.
• ANSI ACCA ResNet ICC Standard 310 ANSI-approved national standard for HVAC installation quality, developed collaboratively by ACCA, RESNET, and ICC, providing specifications for quality installations that interoperate with broader building performance standards.
• CalcuNow Calculator Tools Online calculator tools for HVACR professionals supporting various HVAC calculations and equipment sizing needs, complementing ACCA's Manual J/S/D workflow.
• Hey Ed Educational Resource Educational resource designed to help HVAC technicians explain HVAC concepts and systems to customers, supporting consumer-facing communication and sales enablement.
• ComforTools Leave-Behind Materials Single-page customizable leave-behind materials for contractors to use with customers, covering HVAC-related topics such as the 25C Energy Efficiency Tax Credit, to support education, sales, and trust-building on the job.
• Contractor of the Future Study Annual research study produced in partnership with Farmington Consulting Group that analyzes the habits and strategies of high-performing HVACR contractors based on surveys of over 1,000 contractors, with data-driven insights on marketing spend, technology adoption, financing, and operational practices.
• MIX Groups (Management Information Exchange) Management Information Exchange groups that provide contractor-to-contractor peer networking, helping members succeed through shared best practices, business development learning, and operational benchmarking.

Quantifiable outcome

• Over 7,500 people trained in 2024
• +5 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• HSI (Workforce Training Solutions)coreStrategic or Co-development Partner · 1 May 2026ACCA expanded its online training hub for HVACR professionals through a collaboration with HSI, a workforce training solutions provider. The training hub offers 24/7 on-demand courses for professional development, including Understanding Finance, Mentor Coaching, and an updated Residential HVAC program. ACCA's president stated the partnership supports members in building skills, maintaining credentials, and advancing their careers.
• Plumbing-Heating-Cooling Contractors Association (PHCC)coreStrategic or Co-development Partner · 1 March 2026ACCA and PHCC launched a strategic collaboration to deliver enhanced value to members and position the sector for long-term growth. A joint Steering Committee of volunteer leaders from both organizations is evaluating collaboration opportunities in events, education, workforce development, and legislative partnerships. Near-term, members of both associations will receive registration discounts to each other's major events, and ACCA's advocacy leaders will participate in PHCC's legislative fly-in in 2026 and 2027.
• Federated InsurancecoreStrategic or Co-development PartnerFederated Insurance is a Platinum Corporate Partner of ACCA, providing risk management resources, safety training downloads, OSHA-related guidance, and annual sponsorship of the Federated Insurance ACCA Super S.T.A.R. Award. They offer free seminars through their Risk Management Academy exclusively for ACCA members and contribute safety content to the ACCA HVAC Blog.
• Adrian SteelminorStrategic or Co-development PartnerAdrian Steel is an ACCA strategic partner providing vehicle equipment and solutions for HVACR contractors, helping technicians with the right tools for the job. The partnership is featured as part of ACCA's strategic partner program.
• Midea America Corp.minorStrategic or Co-development PartnerMidea America Corp. is an ACCA Corporate Partner that contributes content on inverter heat pump technology and multi-zone systems for light commercial applications. David Rames, Senior Product Manager, has authored articles on Midea's commercial HVAC solutions published through ACCA's blog.
• Farmington Consulting GroupcoreOthersACCA partners with Farmington Consulting Group to conduct the annual 'Contractor of the Future' study, surveying over 1,000 HVAC contractors nationwide to identify habits and strategies of high-performing contractors. The study provides data-driven insights on marketing spend, technology adoption, financing strategies, and operational practices.
• CarrierminorStrategic or Co-development PartnerCarrier, led by Sr. Director Braden Cook, collaborates with ACCA as an industry association partner supporting workforce development initiatives including training programs at facilities like the Indianapolis center, upskilling initiatives covering smart diagnostics and sustainable technologies, and the TechUp initiative connecting aspiring technicians with hiring dealerships.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• NATE (North American Technician Excellence): NATE is the leading HVACR technician certification body in the U.S. It directly overlaps ACCA's certification and training mission (e.g., EPA 608, A2L) and competes for the same contractor training wallet.
• ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers): ASHRAE is the leading global technical society setting HVAC&R standards and guidelines. It is directly comparable to ACCA because both author foundational HVAC standards (e.g., ASHRAE 90.1 vs. ACCA Manual J/S/D) and serve overlapping engineering and contractor audiences.
• RSES (Refrigeration Service Engineers Society): RSES provides HVACR training, certification and continuing education to technicians and contractors. It is a direct peer in workforce credentialing and competes for ACCA's training and certification revenue streams.
• PHCC (Plumbing-Heating-Cooling Contractors Association): PHCC is the national trade association for plumbing and HVAC contractors. It is highly comparable to ACCA in mission, membership base, and advocacy role, and entered a strategic collaboration with ACCA in March 2026 covering events, education and legislative fly-ins.
• HARDI (Heating, Air-conditioning and Refrigeration Distributors International): HARDI is the national association for HVACR distributors and a co-litigant with ACCA on the EPA Technology Transitions Rule. Comparable because it serves a different HVACR channel with similar advocacy, education and benchmarking offerings.

Broad incumbents

• ABC (Associated Builders and Contractors): ABC is a large national construction-industry trade association that includes mechanical/HVAC contractors among its members. Comparable as a broader construction-industry incumbent that overlaps ACCA's advocacy and training functions for shared contractor members.
• AHRI (Air-Conditioning, Heating, and Refrigeration Institute): AHRI is the trade association representing HVACR equipment manufacturers. It is comparable to ACCA as a peer HVACR industry association but addresses the manufacturer side of the value chain rather than contractors, making it a broad incumbent rather than a direct competitor.

Emerging players

• RESNET (Residential Energy Services Network): RESNET administers residential energy-efficiency rating standards and is ACCA's partner on ANSI ACCA ResNet ICC Standard 310. Comparable because it shapes the same residential HVAC quality and energy-performance standards ACCA's Manual J/S/D underpin.
• BPI (Building Performance Institute): BPI certifies building analysts and contractors in whole-home energy performance. It is comparable as a credentialing body whose contractor certifications increasingly intersect with ACCA's QI and quality-installation offerings.
• SMACNA (Sheet Metal and Air Conditioning Contractors' National Association): SMACNA represents sheet metal and HVAC contractors with strong focus on ductwork and fabrication standards. Comparable to ACCA on the commercial/duct design side (Manual D adjacency) and on advocacy for the contracting community.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Air Conditioning Contractors of America