Bob Doyle, the youngest of Ed’s two sons and one of nine children, joined the family business, creating the company known as E.P. Doyle & Son. Bringing in a business degree and expanding Doyle’s portfolio to include commercial and industrial construction services, Bob succeeded his father as President within just nine years, in 1969. 

Bob relocated the company’s operations to his family home in Glen Ellyn, where he ran the business alongside his wife, Judy, while raising their family. Bob’s exceptional work ethic drove him to spend his days on the jobsite as a carpenter and his evenings handling the books. In 1979, he expanded the business into a corporation.

Bob’s son, Tim Doyle, who grew up immersed in the industry, joined the family business, after gaining experience as a project superintendent and later a project manager, delivering large-scale projects in downtown Chicago. His expertise broadened the company’s operations to include construction management and design-build services. 

E.P. Doyle & Son, Inc.’s sterling reputation led to continued growth, allowing the firm to move into its first non-residential office in Glen Ellyn in 1998. This marked the transition of the firm’s legal name to E.P. Doyle & Son, LLC, Tim’s move to Vice President and part owner, and the company simultaneously becoming informally known simply as “Doyle.” Four short years later, in 2002, Doyle relocated again, as a larger office space was needed to accommodate the firm’s employee growth. 

Financial institutions were the backbone of Doyle's early days, with collaborations like Firstar, MidAmerica, Liberty Federal, & Hinsdale Federal Bank. In the early 2000s, as the industry evolved through mergers, Doyle reestablished key relationships, forming master service agreements with JP Morgan Chase, PNC, Wintrust Financial, and Community Bank. Over the past 25 years, Doyle has built and renovated over 80 financial institutions across Chicagoland, solidifying its strong presence in the sector.

In 2006, Doyle embarked on its largest project to date and its first major breakthrough into the Industrial sector, building new facilities on the Chicago Electric Fish Barrier to protect the ecosystem of the Great Lakes while also supporting growth within the sport fishing industry. This project marked the first of eight projects with the U.S. Army Corps of Engineers and represented contracts of over $64 million within a 13-year period.

In 2007, Doyle broke into the medical industry with the DuPage Eye Surgery Center at the Wheaton Eye Clinic, a relationship that has led to multiple projects over the years. Since then, we've collaborated with notable healthcare clients such as Edward-Elmhurst Medical Group, Marianjoy Rehabilitation Hospital, Rush Copley, and Northwestern Memorial Healthcare, including Central DuPage Hospital, Cadence Health, and Delnor Hospital, establishing a strong presence in the medical sector through long-term relationships.

Doyle purchased a new office building, successfully relocating its operations to Wheaton. This move not only provided a fresh space for the team, but also positioned the company to better serve its growing regional client base while facilitating steady workforce expansion.

Tim became sole owner and President of the company, just 11 years after forming a partnership with his father. A year into his presidency, he took the significant step of purchasing the business outright, solidifying his leadership and vision for its future.

Doyle expanded its Wheaton office by building out the remaining space in its two-story building in order to prepare for planned growth, enhance its capabilities, and allow for greater service delivery to clients while accommodating a still-increasing employee headcount.

E.P. Doyle & Son, LLC proudly celebrated 75 years in business in 2021, achieving a significant milestone in its rich history and commitment to excellence.