The Zweig Group Hot Firm List recognizes the 100 fastest-growing architecture, engineering, planning, and environmental consulting firms in the United States and Canada. In an industry comprised of over 100,000 firms, the Hot Firm List highlights those that have outperformed the economy and competitors to be leaders in their fields. With the number of submissions growing each year, ISG earned the 58th spot on the 2016 list.To view the complete list, please visit: https://zweiggroup.com/awards/the-zweig-letter-hot-firm-list/


ISG launches the ISG Impact Fund to empower employee-driven philanthropy and strengthen communities. Celebrating Employee Ownership Month, the fund supports nonprofits aligned with ISG’s core values.

I&S Group (ISG), a full-service architecture and engineering firm with offices spanning seven states, has acquired Lift Environmental Design, an award-winning landscape architecture and planning firm in Durham, North Carolina.