We’re a team of passionate engineers and consultants. That's the short and simple of who we are.

For nearly 80 years, ARRO Consulting has been delivering practical solutions in municipal engineering, water, wastewater, stormwater, environmental compliance, GIS, technology, planning, parks and recreation, and more. Headquartered in Lancaster County, PA, we serve the Mid-Atlantic region from 11 strategically located offices.

Our clients rely on us not just for technical excellence, but for consistent, long-term partnership. We tailor every solution to meet real-world challenges, deliver on time and within budget, and help communities thrive.