Treecologic Competitors

Established in 1938 as the National Arborist Association, today's Tree Care Industry Association (TCIA) is a trade association of more than 2,000 commercial tree care firms and affiliated companies. Our mission is to advance tree care businesses. TCIA develops safety and education programs, standards of tree care practice, and management information for arboriculture firms around the world. Produced by arborists, for arborists, and tested in the field, you can be confident that all training material is relevant and applicable. In addition to training, we provide continuing education, conferences and publications to promote the safe and appropriate practice of tree care. TCI Magazine is the most circulated and read publication in the industry; TCI EXPO is the world's largest tree care industry trade show and conference; and Winter Management Conference is the premiere business conference for the tree care industry. TCIA also works to help consumers identify proper tree care and qualified tree care companies. Through TCIA's Accreditation program, consumers can find tree care companies that have been inspected and accredited based on adherence to industry standards for quality and safety; professionalism; and dedication to ethics and quality in business practices.

As the Los Angeles region faces severe impacts from climate change, TreePeople unites the power of trees, people and nature-based solutions to grow a more climate-ready city. The organization inspires, engages and supports Angelenos to take personal responsibility for the urban environment, facilitates collaboration among government agencies, and promotes leadership by grassroots volunteers, students and communities. Together, we are growing a greener, shadier, healthier and more water-secure Los Angeles for present and future generations. For more info, visit treepeople.org.

Through research, technology, and education, the International Society of Arboriculture (ISA) promotes the professional practice of arboriculture and fosters a greater worldwide awareness of the benefits of trees, and has been doing so since its inception in 1924. ISA exists so that professionals, allied professionals, public officials, and consumers worldwide recognize the economic, environmental, and societal benefits and values of trees and their care at a cost that demonstrates the wise stewardship of resources. We are registered in the State of Illinois as a 501c (5) nonprofit organization. The following guiding principles provide a framework for our objectives and inspire us to advance ISA’s mission and communicate our philosophy to our diverse audiences. These guiding principles steer our organization and support our vision as we advance ISA's mission. Research ISA is focused on research and the dissemination of results to contribute to a world with healthier trees, sustainable communities, and a green economy. Public Awareness ISA is recognized by the public as the worldwide network for science-based information on the benefits and care of trees. The public recognizes the value of trees, the need for proper tree care, and the benefits of trees to the environment. Membership ISA is a proactive, dynamic, and inclusive organization that provides for the needs of its diverse membership, resulting in engaged members that value the mission. Professional Development ISA is a cohesive, inclusive network of practitioners, scientists, and students that is recognized as the global source for arboricultural information and knowledge. Promoting the Profession Arborists are recognized as qualified, competent, and safe tree care professionals who are sought out the by the public, government organizations, and other professions. Safety Professional tree care practitioners have the required knowledge, training, and expertise to perform proper tree care safely.