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Guided by Values,
Driven by Impact.

Through excellence in engineering, planning, and project leadership, we’re building a better tomorrow, together.

Who We Are Our Market Sectors
Concrete dam with a spillway releasing water beneath a rusted steel truss railway bridge in a forested mountain gorge.
High-voltage transmission towers and power lines stretch across rolling golden grassland with a winding dirt road under a clear blue sky.
Sunny view of a transit center with glass bus shelters and a bus, bordered by trees and a row of curved metal art panels with fish designs along the sidewalk.
Aerial view of a sprawling suburban neighborhood with winding streets and cul-de-sacs, rows of dark-roofed houses, and a large central green space with paths and ponds, bordered by lush forested hills.
Aerial view of a multilane roundabout in a suburban commercial area, with cars circulating and a central island landscaped with tall colorful flower sculptures.
Aerial view of a suburban neighborhood green space with winding gravel paths, native plant beds, small boulders, and a circular picnic area, bordered by manicured lawns and houses near a forested backdrop.

We Focus on People.

At MacKay Sposito, we deliver engineering, planning, and design that strengthens communities and everyday experiences. To achieve this, we put people first, inspired by the opportunity to make a real difference and guided by our core values of honesty, dedication, and relationships.

Meet Our Team

MacKay Sposito three-photo collage of team members collaborating in a modern office, reviewing papers and plans at white desks.
MacKay Sposito three-photo collage of team members collaborating in a modern office, reviewing papers and plans at white desks.

We Focus on People.

At MacKay Sposito, we deliver engineering, planning, and design that strengthens communities and everyday experiences. To achieve this, we put people first, inspired by the opportunity to make a real difference and guided by our core values of honesty, dedication, and relationships.

Meet Our Team

Building Strong Communities.

Backed by a dynamic collection of project experience and technical expertise, we empower our team with the resources, support, and inspiration to create lasting impact. We take the time to fully understand and align with the goals of our clients, leading projects with precision and care across our full suite of market sectors and disciplines.

Community playground with green canopy-topped structures, a metal tube slide, and rope bridges, surrounded by landscaped greenery with townhomes and tall trees in the background.
High-voltage transmission towers and power lines stretch across rolling golden grassland with a winding dirt road under a clear blue sky.
Aerial view of a sprawling suburban neighborhood with winding streets and cul-de-sacs, rows of dark-roofed houses, and a large central green space with paths and ponds, bordered by lush forested hills.
MacKay Sposito team member with arms crossed stands beside a branded black pickup truck with colorful graphics in an outdoor parking area.

Dedicated Service, Expert Guidance.

With deep expertise in civil engineering, land surveying, landscape architecture, environmental permitting, land use planning, and construction management and inspection, we specialize in delivering infrastructure solutions that support growth and vitality for our clients and communities alike.

Our Services

Projects with Purpose.

For over five decades, we’ve seen our portfolio grow through our practiced and proficient suite of services, and an expanding roster of resources. And we’re just getting started—with the upcoming era of community and connection shining brighter than ever.

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