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Engineering Firms
Ranked by No. DE Employees
RankCompany
No. DE Employees
Company Description
Notable DE Projects
Person in charge
Year Founded
1
KCI Technologies
1352 Marrows Rd, Ste 100
Newark, DE 19711
www.kci.com
(302) 731-9176
115
KCI is an employee-owned engineering, consulting and construction firm serving clients throughout the US. Multi-discipline services allows for turnkey service to government, institutional and private-sector clients.
Statewide Environmental & Water Monitoring
South Bethany Tidal Pump
Allen Fear Elementary School
Villages of Stoneybrook
Ryan Slickinger (Office Manager)
1955
2
Pennoni
121 Continental Drive, Suite 207
Newark, DE 19713
www.pennoni.com
(302) 655-4451
113
Pennoni is a multidisciplinary firm who's services include construction, environmental, landscape architecture, MEP, survey and geomatics, infrastructure, and water resources.
DELDOT Bridge Ratings
Brownfield Investigation at Curtis Mill
I-95 Rehabilitation
Cool Spring Reservoir Park
Edward F Rasiul (Vice President, Office Director, Newark )
Mark Davidson (Associate Vice President, Office Director, Milton )
1966
3
Century Engineering
4134 N. DuPont Highway
Dover, DE 19901
www.centuryeng.com
(302) 734-9188
111
Century Engineering, Inc. is a full-service consulting, planning, engineering, surveying and inspection firm. Offering customer-oriented services in Civil, Survey, Geotechnical, Landscape Architecture, Mechanical, Electrical, Plumbing, Structural, Environmental and Transportation engineering throughout the Mid-Atlantic region.
Delaware City DMV
City of Lewes Pedestrian Improvements
The Capital City Trail
I-95 & US-202 Interchange
Scott L. Rathfon, P.E. (Executive Vice President)
1977
4
Duffield Associates, Inc.
5400 Limestone Rd
Wilmington, DE 19808
www.duffnet.com
(302) 239-6634
100
Duffield Associates is an engineering firm and provider of geoscience technology. Their firm fosters a “living green” culture and uses their experience to accomplish client’s engineering and geoscience objectives.
Delaware City Waterfront Revitalization; Hockessin Athletic Club Redevelopment; UD STAR Campus; White Clay Creek Tidal Capture Structure
Stacy Ziegler (Chief Executive Officer)
Deirdre Smith (Chief Operating Officer)
Guy Marcozzi (President)
1976
5
TekSolv
130 Executive Drive Suite 5
Newark, DE 19702
www.teksolv.com
(302) 738-1050
100
TekSolv provides professional services to industrial markets with a focus on safety training services, engineering consultation, systems integrations, oilfield automation, and occupational health service. They specialize in the oil/gas petrochemical and energy industries.
DND
John Mouser (CSP, President)
1999
6
Tetra Tech, Inc.
240 Continental Drive, Suite 200
Newark, DE 19713
www.tetratech.com
(302) 738-7551
68
Tetra Tech has been providing professional services in Delaware for nearly 70 years. Their environmental staff provide environmental services from planning and permitting to EHS compliance to environmental remediation.
DelDOT Rt. 141 Bridge asbestos removal Upper Darby Landfill Project Watson Johnson Landfill Project
Robert M. Maffia (Vice President)
1949
7
DEDC, LLC
315 South Chapel Street
Newark, DE 19711
www.dedc-eng.com
(302) 738-7172
62
DEDC is a full service multi discipline engineering and design firm. Offering service in HVAC, electrical, plumbing, process/chemical, structural and instrumentation/control engineering.
WSFS HQ
DuPont Building Renovations
DuPont Solar Research Facility
Pizza By Elizabeth
Howard P. Krinsky (Principal)
2010
8
BrightFields, Inc.
801 Industrial Street
Wilmington, DE 19801
www.brightfieldsinc.com
(302) 656-9600
48
BrightFields, Inc. is a woman-owned, full-service environmental consulting, evaluation, investigation, and remediation services firm. They specialize in the cleanup and redevelopment of contaminated properties.
Brownfield redevelopment of Wilmington Riverfront

Marian R Young (President)
Mark A Lannan (Principal)
2003
9
Davis, Bowen & Friedel, Inc.
1 Park Ave.
Milford, DE 19963
www.dbfinc.com
(302) 424-1441
38
Davis, Bowen & Friedel, Inc. provides sustainable services in architecture, engineering and surveying. Offering new building design, restoration, facility support, feasibility studies, ecosystem restoration, and mapping services for their clients.
Blades Marina
Atlantic Sands Hotel
Greenwood Library
W. Zachary Crouch (Principal)
1983
10
VanDemark & Lynch, Inc.
4305 Miller Road
Wilmington, DE 19802
www.vandemarklynch.com
(302) 764-7635
38
VanDemark & Lynch approaches each project by seeking innovative and practical solutions to complex and evolving circumstances. As experts in navigating regulatory approvals, they have successfully designed sites for projects through-out Delaware. Their expertise encompasses institutional, commercial, industrial sites, and residential developments.
Port of Wilmington Flood Control
Town of Whitehall - Mapleton Village
JP Morgan Data Center
Townsend Fire Station
Stephan Lehm (President)
1937
11
Becker Morgan Group
309 S Governors Ave.
Dover, DE 19904
www.beckermorgan.com
(302) 734-7950
33
Becker Morgan Group designs solutions to balance function and creativity, while respecting their clients budget, schedule, and programmatic requirements.
Dover International Speedway; Dover Downs Hotel & Casino; William F Cooke, Jr. Elementary School; DuPont Environmental Education Building
W. Ronald Morgan
Gregory V. Moore
J. Michael Riemann
Brad A Hastings
1983
12
Environmental Alliance
5341 Limestone Road
Wilmington, DE 19808
www.envalliance.com
(302) 234-4400
32
Environmental Alliance, Inc. works to provide effective cleanup strategies to eliminate contamination from sites in order to promote human health and sustain the quality of the environment.
DND
Bill Smith (President)
1991
13
Paragon Engineering
708 Philadelphia Pike
Wilmington, DE 19809
www.paragon-eng.com
(302) 762-6010
32
Paragon Engineering Corp. is a privately owned, full service mechanical and electrical engineering firm located in Wilmington. PEC provides consulting services for new and renovated commercial, institutional, governmental and industrial sites.
Delaware School for the Deaf; Delaware Army National Guard Aviation Support Facility; W.L. Gore & Associates Renovations; Tatnall School Performing Arts Center
David P. Bobiak (P.E., LEED AP)
1985
14
Karins and Associates
17 Polly Drummond Center, Suite 201
Newark, DE 19711
www.karinsengineering.com
(302) 369-2900
30
Karins & Associates specializes in civil engineering, planning, surveying, laser scanning and construction services with knowledge of local regulatory processes.
Hindu Temple of Delaware Expansion
The Village of Bayberry
IKO Manufacturing
Dev Sitaram (President)
1973
15
Landmark Science & Engineering
200 Continental Dr. Suite 400
Newark, DE 19713
www.landmark-se.com
(302) 323-9377
30
Landmark Science & Engineering is an integrated civil engineering, surveying, and environmental consulting firm specializing in civil engineering, water resources, landscape design, ecology, remediation, land surveying and GIS mapping.
Kent County Courthouse Expansion
CSC HQ
Newark Charter Primary School
Mill as White Clay Creek Brownfield Adaptive Re-Use
Ted C Williams (President)
1987
16
Studio Jaed
2500 Wrangle Hill Rd, Ste 110
Bear, DE 19701
www.studiojaed.com
(302) 832-1652
22
Studio JAED serves the planning, design and construction document/administration needs of educational, governmental, industrial, commercial, and private clients across the nation. They offer full services in architecture as well as mechanical & electrical engineering.
Delaware DNREC Field Facility
Seaford High School
Lewes Energy Audit & Design Upgrades
Jim Hutchison (CEO)
1978
17
Kellogg Brown and Root
242 Chapman Road
Newark, DE 19702
www.kbr.com
(302) 452-9000
20
KBR is a global provider of differentiated professional services and technologies across the asset and program life cycle within the Government Services and Hydrocarbons sectors.
DND
Pete Howe (Director of Engineering Operations)
1919
18
Nowland Associates
2009 Ogletown Rd
Newark, DE DND
www.nowlandassociates.com
(302) 731-1333
201
Nowland Associates can successfully and professionally manage a project from conception to completion. Their staff of project managers, on-site superintendents, estimators, engineers, architects and skilled craftsmen can assist with site selection and development to building design, budgeting and construction, post occupancy issues and maintenance.
Gore Papermill Offices
Hockessin Memoral Hall
St. Andrews Library Renovations
Wilmington Friends School Global Learning Center
Jeff Nowland (Owner)
19
Blake and Vaughan Engineering, Inc.
800 Woodlawn Avenue
Wilmington, DE 19805
www.blakevaughan.com
(302) 888-1780
15
Blake and Vaughan Engineering, Inc. specializes in building control and automation systems, fire suppresion systems, emergency power back-ups, photo voltaic systems, security and surveillance systems.
Mike's Famous Harley-Davidson
Bethany Blue's
Jeff Vaughan (Principal)
Dan Blake ( Principal)
2003
20
Cooperson Associates
1504 N French St
Wilmington, DE 19801
www.coopersonassoc.com
(302) 655-1105
9
Cooperson Associates offers professional experience with diverse building types: institutional, commercial, medical, educational, judicial, governmental, religious, recreational, and residential — both single and multi-family. With work encompassing the design of new structures and the renovation, remodeling, expansion and adaptive re-use.
Ashland Nature Center
Beth Shalom Synagogue
Smyrna Opera House
Jay N. Cooperson (Principal)
Michael E. Lukshides (Partner)
2008
21
Bohler Engineering
18958 Coastlal Hwy, Suite D
Rehoboth Beach, DE 19971
bohlerengineering.com
(302) 644-1155
8
Bohler Engineering provides consulting services for land development projects. Integrating multiple disciplines of civil engineering to simplify the development process for their clients. With clients spanning multiple market sectors including retail, industrial, government, healthcare, & residential.
DND
Dave Kuklish (Associate, Bohler Delaware Branch Manager)
1981
22
Larson Engineering Group, Inc
910 S Chapel St. Suite 200
Newark, DE 19713
larsonengineering.net
(302) 731-7434
8
Larson Engineering Group, Inc. designs have included land planning, site layout, water and sewer distribution, storm drainage, storm water management, erosion and sediment control, parking facilities, road design, and entrances.
Deer Park Plaza
Four Seasons Plaza
Johnson Farm Residential Development
Paper Mill Plaza
George H Larson (President)
1996
23
ForeSite Associates
208 Delaware St.
New Castle, DE 19720
www.foresiteassociates.com
(302) 351-3421
7
ForeSite Associates, Inc. brings a diverse range of technical solutions to their industrial, commercial, and municipal clients. They maintain a strong desire to continue to build upon their firmly established reputation for providing quality consulting services for civil engineering and land planning.
DND
Andrew Hayes
2005
24
Tech International Corp
102 Webster Bldg, 3411 Silverside Road
Wilmington, DE 19810
www.techinternationalcorp.com
(302) 478-2301
6
Tech International Corp. has employed different technologies and solutions to enable better information capture, analysis and management. They utilize customized mobile computing devices for extensive asset data collection and mapping involving assets such as pipelines, sewers, valves, hydrants, pump stations, facility lighting, and road assets.
Wastewater Treatment Plant Upgrades
City of Wilmington Transportation CIP Program

Eugene Amobi (President)
1999
25
Archology
107 S Washington St
Milford, DE 19963
www.archologyde.com
(302) 339-5566
4
Archology believes every building site offers opportunities afforded by the mixture of built and natural features on and around a site. The goal of their firm is to mix Architecture with Ecology to create spaces that enhance the value of their client’s construction dollar.
DND
Mark Redden (Principal)
2010