Exceptional infrastructure real
estate services delivered by
dedicated professionals who care.

Founded in 1997 by the late W. Howard Armstrong, the Pinnacle Group was born out of a vision to create an industry-leading infrastructure real estate firm.

Alongside his dedicated partners, Lisa R. Harrison and Jennifer Harrison, Howard laid the foundation for a company built on a commitment to excellence for our clients, equal opportunity and benefits for our team, and outstanding service to the public.

Today, Lisa, along with her partners Marcus Boyd and Aaron Adkins, continues to build on that legacy.

By enhancing efficiency, ensuring quality assurance, promoting work-life balance, and expanding communication with the public, they are committed to advancing the Pinnacle Group’s original mission.

What We Do

Pinnacle Annual Volleyball Tournament 2023

Pinnacle Annual Employee Retreat at Lake Austin Spa and Resort 2022

Pinnacle provided the land acquisition and relocation services to the City of Arlington for the Dallas Cowboy Stadium and supporting areas.

Marcus Boyd during his presidency of International Right of Way Association's Chapter 36 introducing the Pinnacle staff who were in attendance.

Pinnacle Anniversary Party 2018

Buzz Haltom marketing at the International Right of Way Annual Conference

Ann Chaney's retirement party with Jennifer Harrison and Lisa Harrison - 3 of the original 5 staff members.

Parking lot basketball break at the Oklahoma City office.

Pinnacle crew attending the International Right of Way Association's Annual Conference welcoming reception.

Pinnacle provided subject matter expertise regarding compliance with the URA to the Michigan Department of Transportation for the Gordie Howe International Bridge project.

Lisa Harrison in her role as International President of the International Right of Way Association (2014)

Pinnacle provided project management, land acquisition, relocation assistance, and property management for the Green Line, Blue Line and Silver Line for Dallas Area Rapid Transit (DART).

Join Us

At Pinnacle, we believe that professional excellence requires cooperation, empathy, authenticity, and high personal standards.

Who We Are