Lennon, Smith, Souleret Engineering, Inc. (LSSE), founded in 1985, is a civil engineering and surveying firm that serves the municipal government/authorities, commercial, industrial, institutional, residential and utilities markets.  LSSE has a proven reputation for meeting client expectations and our steady growth is attributed to client satisfaction, repeat business, and client referrals.

LSSE’s services are delivered throughout Pennsylvania and the Tri-State region from our headquarters located in Coraopolis (Allegheny County) and branch offices in in PA (Westmoreland County, Erie County, Beaver County) and OH (Franklin County).

LSSE maintains one of the region's largest engineering units dedicated solely to civil engineering and has over 30 years of experience in the successful completion of projects relating to planning, design, and maintenance programs for municipal infrastructure (water, wastewater, stormwater, roads, pavement, parking, parks and recreational facilities, etc.); civil-site design for commercial, industrial, institutional and residential sites; surveying; MS4 programs; green infrastructure; hydrologic and hydraulic modeling; GIS/mapping and asset management; and grants/loans procurement and administration.

LSSE serves over 60 regional municipal clients including cities, counties, boroughs, townships, municipal water and wastewater authorities and redevelopment authorities.  LSSE's current management and design teams have successfully completed planning, design, permitting and construction phase services for recent projects that total over $350 million in construction value.

LSSE’s recent civil-site experience includes engineering and surveying services for an 833-acre industrial park site; 50 big-box commercial sites; 16 warehouse/package delivery sites; residential developments comprising of over 3,500 housing units; riverfront brownfield redevelopment; and special, multi-use recreational, commercial and residential sites.

Lennon, Smith, Souleret Engineering, Inc.

Lennon, Smith, Souleret Engineering, Inc.'s headquarters in Coraopolis, PA, United States

Ned Mitrovich

The Engineering and Design team at Lennon, Smith, Souleret Engineering, Inc. (LSSE) is responsible for the planning, designing, and execution of civil engineering projects across various sectors, including municipal infrastructure and commercial developments. This team collaborates on innovative solutions, leveraging expertise in environmental engineering, CAD design, GIS mapping, and project management to ensure that projects meet regulatory standards and client goals. Their work supports LSSE's commitment to delivering high-quality engineering services and enhancing community infrastructure throughout Pennsylvania and the Tri-State region.

Engineering and Design

The Project Management team at Lennon, Smith, Souleret Engineering, Inc. is responsible for overseeing the planning, execution, and delivery of civil engineering projects across various sectors. This team ensures that projects are completed on time, within budget, and to client specifications, acting as the primary liaison between clients, contractors, and stakeholders. With a focus on effective communication and strategic resource allocation, the team plays a crucial role in maintaining LSSE's reputation for client satisfaction and successful project outcomes.

Lennon, Smith, Souleret Engineering, Inc.

Org chart

Teams

Engineering and Design

Project Management

Offices

Lennon, Smith, Souleret Engineering, Inc.

Org chart

Teams

Engineering and Design

Project Management

Offices

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