Landscaping Contractors Trade Associations

Arizona Landscape Contractors Association

Arizona’s statewide trade group for landscape contractors, offering training, certification, advocacy, and networking; it represents a network of over 420 professional landscape and affiliated companies.

https://alca.org Membership: 420

Associated Landscape Contractors of Colorado

Colorado’s statewide association for landscape contractors, focused on advocacy, education, water stewardship, and business resources; it reports 600+ member companies.

https://www.alcc.com Membership: 600

California Landscape Contractors Association

California’s nonprofit trade organization for licensed landscape contractors and related professionals, providing certification, advocacy, and statewide chapter support; membership is approximately 3,200.

https://clca.org Membership: 3,200

Columbus Landscape Association

A Central Ohio association supporting landscape contractors with education, networking, and consumer outreach; the organization notes nearly one hundred members.

https://www.columbuslandscape.org Membership: 100

Florida Nursery, Growers & Landscape Association

The nation’s largest state nursery and landscape association, serving growers and landscape professionals with education, certification, and advocacy; more than 2,000 industry firms are members.

https://www.fngla.org/ Membership: 2,000

Illinois Landscape Contractors Association

Illinois’ statewide contractor association delivering training, events, and advocacy for landscape companies and suppliers; it has more than 800 member firms.

https://ilca.net Membership: 800

Irrigation Association

The leading membership organization for irrigation manufacturers, distributors, designers, and contractors in agriculture and landscape, advancing efficient water management; it has about 1,800 member companies.

https://www.irrigation.org/ Membership: 1,800

Maryland Nursery, Landscape and Greenhouse Association

Maryland’s statewide green‑industry association (including landscape contractors), providing advocacy, certification, education, and networking; membership is 300+ firms.

https://mnlga.org Membership: 300

Massachusetts Association of Landscape Professionals

Massachusetts’ association for landscape contractors and allied professionals, offering certification (MCLP), continuing education, and member marketing; membership is roughly 600 strong.

https://mlp-mclp.org/ Membership: 600

Michigan Green Industry Association

Michigan’s statewide green‑industry trade association serving landscape contractors with education, certification, events, and advocacy; it serves more than 800 members.

https://www.landscape.org/ Membership: 800

Minnesota Nursery & Landscape Association

Minnesota’s statewide nursery and landscape association representing contractors, designers, irrigation, and allied firms; about 900 firms are members.

https://www.mnla.biz/ Membership: 900

National Association of Landscape Professionals

The U.S. national trade association for landscape, lawn care, design/build, maintenance, and related firms; a recent update cited 3,399 member companies (excluding students), alongside programs in advocacy, certification, and workforce.

https://www.landscapeprofessionals.org/ Membership: 3,399

New Jersey Landscape Contractors Association

New Jersey’s statewide contractors association providing education, monthly meetings, trade shows, and advocacy; historically, it has represented nearly 500 landscape contracting firms.

https://njlca.org/ Membership: 500

New York State Nursery & Landscape Association

New York’s statewide nursery and landscape association uniting regional chapters, offering certification (CNLP), education, and advocacy; it represents 700+ green‑industry professionals.

https://www.nysnla.com/ Membership: 700

Ohio Green Industry Association

Ohio’s statewide green‑industry association including landscape contractors, designers, and maintenance firms; it reports more than 1,300 members and a century‑long history.

https://ogia.org/ Membership: 1,300

Pennsylvania Landscape & Nursery Association

Pennsylvania’s leading green‑industry association serving landscape contractors, garden centers, and growers with certification, education, and lobbying; membership is about 750.

https://www.plna.com/ Membership: 750

Snow & Ice Management Association

North America’s trade association for snow and ice management contractors—many of whom are landscape companies—providing training, credentials, and advocacy; it reports 1,200+ members.

https://www.sima.org/ Membership: 1,200

Texas Nursery & Landscape Association

Texas’ statewide nursery and landscape association supporting contractors with legislative advocacy, education, and networking; it represents over 2,000 members.

https://www.tnlaonline.org/ Membership: 2,000

Washington Association of Landscape Professionals

Washington State’s contractor‑focused association offering education, chapter networking, and advocacy; the organization notes a community of 300+ members.

https://www.walp.org/ Membership: 300

Wisconsin Nursery & Landscape Association

Wisconsin’s statewide nursery and landscape association serving contractors, growers, and suppliers with education and advocacy; it counts nearly 250 members.

https://wnla.net/ Membership: 250