Trillium supports business and technology community involvement with memberships in a wide range of organizations.


Illinois Technology Association

With over 700 member companies, ITA represents organizations from start-up to leader across the industry – software, mobile, internet, consulting, online services, electronics, telecommunications, green and across all industries – business, consumer, financial services, travel, manufacturing, healthcare, and so on – that represent Illinois’ diversity of companies “that make the technology, that make businesses run.”  

Project Management Insitute

PMI is the world’s leading not-for-profit membership association for the project management profession, with more than half a million members and credential holders in more than 185 countries. Our worldwide advocacy for project management is supported by our globally-recognized standards and credentials, our extensive research program, and our professional development opportunities.

Assocation Forum of Chicagoland

The Association Forum of Chicagoland is the "association of associations" in Chicago. Founded in 1916, the Association Forum has:  Approximately 3,000 members; These members represent more than 47,000 association professionals from nearly 2,000 Chicago organizations; and, These organizations serve 37 million members, have 9 million donors and generate $22 billion annually in global economic impact.

The Executives Club of Chicago

The Executives’ Club of Chicago (EC) is a business forum for thought leadership, professional development, and best business practices. Founded in 1911, The Club is one of the nation’s oldest and most prestigious business organizations. The Executives’ Club serves Chicago’s business community by providing information and resources needed to establish effective global partnerships, enhance intellectual exchange, develop future diverse business leaders, and promote Chicago as a world class global business center. In 2011, The Executives’ Club of Chicago observes its Centennial, celebrating 100 years of The Club’s Global Thinkers and Doers. The Centennial is marked by a variety of programs, marketing and communications initiatives. These include four Centennial Summits addressing women’s leadership, technology leadership, new leaders, and U.S.-India trade and investment relations.

Highland Park Chamber of Commerce

For 100 Years, the Highland Park Chamber of Commerce has been the premier business organization for the Highland Park community.  It is the voice advocating on behalf of business interests – its strength coming from the voluntary membership of business owners dedicated to improving the business climate for all.  The Chamber of Commerce is also the “Front Door” for residents, shoppers, and visitors to our wonderful community.  We are here to welcome, to promote, to educate and to be a resource for all.  We are the Resource for Business Success and we are here for all of Highland Park. 

Business Forums International

Founded by Houlihan Lokey, an international investment bank, Business Forum provides its members with the opportunity to meet and effectively network with other highly successful business professionals. The Business Forum offers its members the opportunity to generate more business, gain exposure to other leading professionals and their resources, and form relationships that often transcend business. It distinguishes itself from other organizations because of its members’ high standards of Integrity, Accountability and Excellence.

The Trillium Leadership Team also has individual memberships in organzations such as:

The Union League Club of Chicago

Established in 1879 to uphold the sacred obligations of citizenship, promote honesty and efficiency in government, and support cultural institutions and the beautification of the city, the Club has been a contributing partner in the growth and development of Chicago. Through the efforts of its dynamic membership, the Club has been a catalyst for action in nonpartisan political, economic and social arenas – focusing its leadership and resources on important social issues.

The Economic Club of Chicago

The Economic Club of Chicago was organized in 1927 "to aid in the creation and expression of an enlightened public opinion on the important economic and social questions of the day.” Equally important, through its membership policies, the Club works to identify upcoming young leaders to insure a continuum of knowledge and traditions within Chicago’s civic and business community as the torch of leadership passes from one generation to the next. 

Society for Information Management - Chicago Chapter

The Chicago chapter of SIM is one of the largest chapters in the association with more than 200 members. SIM Chicago provides a unique opportunity to interact with thought leaders throughout the technology and business fields and to join peers in giving back to the industry and community. SIM Chicago fully supports all of the SIM International organization's initiatives as well as its own efforts.