Who is MCAA?
Built on a legacy of unwavering commitment, the Mechanical Contractors Association of America (MCAA) is the leading authority for mechanical contractors. For over 135 years, our story has been one of continuous innovation, steadfast advocacy, and a relentless focus on safety.
MEMBER ORGANIZATIONS
MSCA
PCA
NCPWB
JRGF

The Mechanical Service Contractors of America (MSCA), a subsidiary of MCAA, is the leading national resource for HVACR contractors specializing in service, maintenance, and repair of building systems. MSCA provides education, advocacy, and best practices to help contractors deliver quality, value, and expertise while strengthening performance and profitability across the mechanical service industry. LEARN MORE ABOUT MSCA.
The Plumbing Contractors of America (PCA), a subsidiary of MCAA, represents union plumbing contractors nationwide in partnership with the United Association of Plumbers and Pipefitters. PCA provides education, advocacy, and industry resources to strengthen contractor performance, foster collaboration with organizations such as IAPMO, ASSE, ASPE, and the World Plumbing Council, and ensure members deliver quality, value, and expertise across the plumbing industry. LEARN MORE ABOUT PCA.
The National Certified Pipe Welding Bureau (NCPWB), a subsidiary of MCAA, helps contractors stay at the forefront of welding and brazing technology. NCPWB provides qualified welding and brazing procedures, training, and compliance resources that save contractors time and money, reduce risk, and ensure the highest standards of safety and quality across the industry. LEARN MORE ABOUT NCPWB.
The John R. Gentille Foundation (JRGF), established in 1989 as the non-profit arm of MCAA, supports education and research to address critical issues in the mechanical construction and service industry, including workforce development, productivity, and technology. Designed to provide professional, neutral insights and solutions beyond the scope of MCAA’s direct work, the Foundation draws on MCAA’s extensive resources to advance the industry. Renamed in 2020 to honor longtime MCAA’s CEO John R. Gentille, the Foundation continues his legacy of leadership and commitment to strengthening the future of the industry. LEARN MORE ABOUT JRGF.
Our Mission
Our mission is to guide and support member success to build a stronger, more sustainable future for the mechanical contracting industry. Through member-driven resources, comprehensive education, and strategic partnerships, we empower members to shape a future of unparalleled innovation and growth.
Why Members Join MCAA
We’ll be your trusted guide and voice in the ever-evolving mechanical contracting industry, ready to help you navigate change, elevate careers and embrace new opportunities with unwavering confidence.
LEADERSHIP
In an ever-evolving industry, the future can feel uncertain. But while some approach it with caution, mechanical contractors approach it with confidence. We cross the threshold of the unknown into a frontier radiating with possibility and coming alive with the energy of transformation. At the 2026 MCAA Annual Convention, every innovation, every partnership, every member is part of a bigger, more vibrant picture.
Brian Hughes Convention Message, President, MCAA
NATIONAL STAFF
MCAA 2024 by the numbers…

3,000 of the nation’s most professional and best
qualified mechanical industry contractors
670 business resources
free as a benefit of membership

42 student chapters
at colleges and universities across North America

131 years of excellence
representing the mechanical construction industry
1,625 Personnel
from sales backgrounds whose sales skills have been enhanced by MSCA
1,300 of the nation’s
leading service contractors
737 industry leaders
who graduated from our one-of-a-kind Advanced Leadership Institute during the last 20 years
875 service managers
trained through the Mechanical Service Contractors of America (MSCA) over the last 20+ years
600+ project managers
graduated from our Advanced Institute for Project Management over the last 21 years
769 contractors
who look to the National Certified Pipe Welding Bureau for technical support on welding, brazing, and code compliance
114 of the industry’s leading
manufacturers and suppliers
93 affiliated local associations
across the United States
2,750+ Students graduates
from our Institute for Project Management during the last 35 years
2000+ Students
in our Preliminary Institute for Project Management in the last 2 years

FEATURED RESOURCE
WebLEM
WebLEM is an online tool that allows MCAA member contractors to quickly and accurately estimate labor hours for different jobs.
