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Architecture Firms
Ranked by No. DE Employees
RankCompany
Phone / Fax
No. DE EmployeesManaging Partners
Year Founded
1
Tetra Tech, Inc.
240 Continental Drive, Suite 200
Newark, DE 19713
www.tetratech.com
(302) 738-7551
(302) 454-5989
66*
Robert M. Maffia (Vice President)
1949
2
Davis, Bowen & Friedel, Inc.
23 North Walnut Street
Milford, DE 19963
www.dbfinc.com
(302) 424-1441
(302) 424-0430
38*
Randy Duplechain (Principal )
Jason Loar (Principal ) Principal s
1983
3
Mitchell Associates, Inc
One Avenue of the Arts
Wilmington, DE 19801
www.mitchellai.com
(302) 230-5200
(302) 594-9420
30*
Lou Rosenberg (CEO)
1965
4
Becker Morgan Group
309 S Governors Ave.
Dover, DE 19904
www.beckermorgan.com
(302) 734-7950
(302) 734-7965
28
Gregory V. Moore (VP)
1983
5
Abha Architects
1621 N Lincoln St
Wilmington, DE 19906
www.abha.com
(302) 658-6426
(302) 658-8431
17
Chandra Nilekani
Denis O O'Brien
Michael Deptula
Scott Lester
Carl Krienen
1949
6
Bernardon
123 Justison Street, Suite 101
Wilmington, DE 19801
www.bernardon.com
(302) 622-9550
(302) 622-9554
15*
William E. Holloway (Principal)
Kerry R. Haber (Principal)
Robin E. Tait (Director of Interior Design)
1973
7
Architectural Alliance
1309 Veale Road, Suite 22
Wilmington, DE 19810
www.archalli.com
(302) 478-3777
13
Bruce Cavin
Rudolph Ducharme
Kevin Wilson
1987
8
Tevebaugh Associates
2 Mill Road, Suite 210
Wilmington, DE 19806
www.tevebaugh.com
(302) 984-1400
12
Bill Lenihan (President)
Sean Goodrick (Principal)
Shawn Crowley (Principal)
1987
9
Buck Simpers Architect + Associates
954 Justison St.
Wilmington, DE 19801
www.simpers.com
(302) 658-9300
(302) 658-1125`
10*
R.W. Buck Simpers (Owner)
1979
Homsey Architects
2003 N Scott St
Wilmington, DE 19806
www.homsey.com
(302) 656-4491
10*
Eldon Homsey
19501
Moeckel Carbonell Associates Inc
One Avenue of the Arts
Wilmington, DE 19801
www.architectsde.com
(30) 571-0840
10*
Harold E. Judefind, Jr. (President)
1909
Studio Jaed
2500 Wrangle Hill Rd, Ste 110
Bear, DE 19701
www.studiojaed.com
(302) 832-1652
(302) 832-1423`
10*
Jim Hutchison (CEO)
1978
13
Breckstone Architecture
2417 Lancaster Ave
Wilmington, DE 19805
www.breckstonearchitecture.com
(302) 654-3646
(302) 654-3648
9
Todd T Breck (President)
David P Mengers (Vice President)
1990
14
Cooperson Associates
3700 Oak Ridge Rd
Wilmington, DE 19808
www.coopersonassoc.com
(302) 239-1805
(302) 655-1139
8
Jay N. Cooperson (Principal)
Michael E. Lukshides (Partner)
Robert Spring (Partner)
Frederick S. Roland (Vice President, PE, SECB, RA, CFEI, CFII)
2008
Element Design Group
231 N. Market Street
Wilmington, DE 19801
www.elementdg.com
(302) 299-8335
8*
Douglas M. Warner (Principal)
2004
R G Architects, LLC
200 West Main St.
Middletown, DE 19709
www.rgarchitects.net
(302) 376-8100
(302) 376-9581
8
Gerald D Rozanski (Principal)
Robert A Grove (Principal) Principals
2005
17
Moonlight Architecture
29003 Lewes Georgetown Hwy
Lewes, DE 19958
www.moonlightarch.com
(302) 645-9361
6*
James Clark (Owner)
1999
18
Design Collaborative
1211 Delaware Ave Ste Dc1
Wilmington, DE 19806
www.dciarchitects.com
(302) 652-4221
5*
Lee Sparks
Joseph T. Chickadel
1979
Rothberg Marjorie Architecture
1225 N King St Ste 500
Wilmington, DE 19801
www.m10x10.com
(302) 655-6595
5*
Marjorie Rothberg (Architect, Principal)
1998
20
Staikos Associates Architects
900 Philadelphia Pike Ste 2
Wilmington, DE 19809
www.staikos.com
(302) 764-1678
3*
Nicholas D Staikos (Principal)
1986
21
Archology
107 S Washington St
Milford, DE 19963
www.archologyde.com
(302) 339-5566
2*
Mark Redden (Principal)
2010
Becker Morgan Group
Rittenhouse Station, 250 South Main Street, Suite 109
Newark, DE 19711
www.beckermorgan.com
(302) 369-3700
2
1983
Robinson Anderson Summers, Inc.
30 Bancroft Mills Rd
Wilmington, DE 19806
www.raslainc.com
(302) 888-1544
2
1995
Ryan Architecture, LLC
140 Layton Ave., Suite 2
Georgetown, DE 19947
www.ryanarchitect.com
(302) 228-1111
2
Parick W. Ryan (Managing Member)
2015
Weymouth Architects and Planners
1827 Lovering Ave
Wilmington, DE 19806
www.weymoutharchitects.com
(302) 658-8760
2*
Charles Weymouth (AIA)
1968
26
andersen+ford architects
611 Haverhill Rd
Wilmington, DE 19803
www.af-architects.com
(302) 388-7862
1*
James Clark (Principal)
2007
D. Dalby Architect
170 E Main St
Newark, DE 19711
www.ddalbyarchitect.com
(302) 738-3811
(302) 738-0385
1*
David Dalby
2004
Delaware Architects
550 S Dupont Blvd E
Milford, DE NA
www.delawarearchitectsllc.com
(302) 491-6047
1*
Martin Dusbiber (Operations Manager)
2009
James Robert Clark Architect/Planner
14134 Union Street Ext # 734
Milton, DE 19968
(302) 684-0268
1*
James Clark (Owner)
1988
Michael Cohalan Architect
102 Savannah Rd
Lewes, DE 19958
www.michaelcohalan.com
(302) 645-5556
(302) 684-5974
1
1969
NR
Design Delmarva
1304 Savannah Rd
Lewes, DE NA
www.designdelmarva.com
(302) 644-8884
NA
NR
Fearn-Clendaniel Architects
6 Larch Ave Ste 398
Wilmington, DE NA
www.fcarchitects.net
(302) 998-7615
NA
NR
Gilbert Architects
100 S Broad St
Middletown, DE NA
www.gilbertarchitects.com
(302) 449-2492
NA
NR
Rockland Design- Build
1605 E Ayre St
Wilmington, DE 19804
www.rocklandinc.com
(302) 995-6800
NA
2002
NR
Scott Edmonston Architecture Studio
30396 Anderson Dr Unit 207
Ocean View, DE 19970
www.seagreenstudio.com
(302) 364-0821
NA
Scott Edmonston (President, AIA, LEED AP)
NR
Tetra Tech
240 Continental Dr, Ste 200
Newark, DE 19713
www.tetratech.com
(302) 738-7551
(302) 454-5988
NA