To be eligible for Associate membership, an applicant must not qualify as a Regular member, must be engaged in business for profit within the United States, Canada, or Mexico, and must be a supplier of ladder materials and/or components used in the manufacturing of ladders.

To be eligible for Affiliate membership in the ALI, an applicant must not qualify as a Regular or Associate member, must be engaged in business for profit in the United States, Canada, or Mexico, and must provide services to the ladder industry, including, but not limited to, insurance services, and ladder distribution services. 

To be eligible for Alliance membership, an applicant must not qualify as a Regular, Associate, or Affiliate member, must be located in the United States, Canada, or Mexico, and must provide a rational and clearly expressed reason for wishing to become aligned with ALI (for example to become an ally with ALI in the perpetuation of ladder safety).  Businesses or organizations that may request Alliance membership include, but are not limited to:

• Trade, labor, and technical associations
• Safety organizations
• Major ladder users (construction companies, chemical companies, etc.)
• Ladder retailers

To be eligible for International Alliance Membership, an applicant must not qualify for any other membership class, must not be a manufacturer of ladders, and must provide a rational and clearly expressed reason for wanting to be associated with ALI.  Businesses or organizations that may request International Alliance Membership in ALI include, but are not limited to:

• International safety organizations
• International ladder distributors