Successfully completed projects across various sectors.
Communities served. Join us to reach the next 160.
Now Located in Philadelphia & King of Prussia
Complex Projects. Clear Solutions.
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We Put Clients & Employees First
"At ARRO, we leverage the strength of our team’s experience and embrace forward-thinking technology to deliver exceptional solutions and build lasting partnerships.
We take pride in the culture we’ve built—one that puts clients and employees first. Together, we turn challenges into opportunities, and we look forward to partnering with you on what’s next."
The Latest From ARRO
Expanding its presence in eastern Pennsylvania, ARRO has acquired Ott Consulting, a well-established engineering firm with more than two decades of experience.
As ARRO celebrates its 80th anniversary, the firm honors its history while building on a strong foundation for the future.
Experienced HR leader joins ARRO as Director of People, bringing 10+ years of strategic people operations expertise to elevate culture, engagement, and organizational growth.
There's nothing more expensive than cheap engineering.
Too often, municipalities stay with a firm that isn’t delivering simply because switching feels like more hassle than it’s worth. But if the relationship isn’t working, the hidden costs add up: delays, rework, missed opportunities, and lost trust.
At ARRO, we make it easy to have a real partnership without starting from scratch. We invest in understanding your systems, your goals, and your constraints.
So, you can lead with confidence with the support of a trusted advisor who is committed to serving your community.
How To Work With ARRO
Give us a call, drop us an email, or click on the Let’s Talk button and tell us what you’re dealing with.
Our team maps out practical, forward-thinking solutions tailored to your timeline, budget, and community needs.
You get a dependable partner who walks with you from kickoff to completion and beyond.