Grounded. Honest. Accountable.
With You All the Way.

The GHA Way is our proactive and personalized approach to client partnership. We stay grounded in your priorities, communicate honestly, and own our actions to deliver infrastructure solutions that you can proudly stand behind.

45+

Years of Service

150+

Employee Co-Owners

24/7

Client Availability

>75%

Repeat Clients

3

Midwest Offices

See the Difference

Beyond Infrastructure Expertise

See what Grounded, Honest, Accountable partnership looks like in practice—and why it
makes a difference for every client outcome.

What Guides Us

People.
Purpose.
Progress.

Founded in 1981 by Dave Gewalt and Bob Hamilton, GHA has evolved alongside our clients while staying true to the principles that define who we are.

Dedicated to personalized partnership, we deliver innovative infrastructure solutions that positively impact people’s lives and communities.

GHA will:

  • Be the premier consultant partner in the Midwest, providing high-quality services and designs for our clients and community.
  • Be forward-looking, working toward a common vision built upon diversity and inclusion, a feeling of belonging, and strong internal and external relationships.
  • Be a world-class place to build a career, focused on staff development and training at all levels, creating challenging and rewarding opportunities for all staff.
  • Build and maintain a strong culture, rooted in trust, growth, and our core values.

Taking responsibility for the firm’s success; viewing its goals and outcomes as your own.

A personal choice to uphold oneself consistently with moral and ethical standards.

An internal enthusiasm that motivates us to perform, inspire, and engage.

Recognizing opportunities, anticipating challenges, and acting independently.

Holding one another to high standards and being willing to have difficult conversations if needed.

How We Work

Proactive & Personalized

Infrastructure needs are different. That’s why our approach to every client initiative is rooted in:

  • Understanding how infrastructure will be used and maintained over time.
  • Communicating candidly, surfacing risks early, and staying ahead of costly surprises.
  • Working as an extension of the client team and taking ownership from day one.
What Clients Gain

Trusted Outcomes

The GHA Way creates infrastructure solutions that meet today’s needs while providing long-term value. That’s why we’ve earned clients’ confidence for 45+ years, and why clients keep partnering with us on their critical infrastructure initiatives.

Featured Projects

The best way to understand The GHA Way is to see it in action. Explore projects that reflect our commitment to being a trusted infrastructure partner.

Ruth Barn Relocation & Site Improvements

Long Grove, IL

Barrington High School Stadium

Barrington, IL

Lake Zurich Cusd 95 – May Whitney

Lake Zurich, IL