HapstakDemetriou+ Information

View Top Employees from HapstakDemetriou+

HapstakDemetriou+ is a creative and spirited architecture and design studio under the leadership of Peter Hapstak and Olvia Demetriou, FAIA—two accomplished design professionals whose careers have long been celebrated for their innovation and timelessness. The studio benefits from a diversely talented and experienced group of architects and designers who produce striking and inventive design solutions. Known for designing a full array of project types and sizes, HapstakDemetriou+ takes clients' ideas from conception to full realization. For more information, please visit www.hd-ad.com / 202.333.9038

Website	http://www.hd-ad.com
Revenue	$5 million
Employees	15 (11 on RocketReach)
Founded	2011
Address	2715 M Street NW 4th Floor, Washington, District of Columbia 20005, US
Technologies	JavaScript , PHP , Google Analytics +15 more (view full list)
Industry	Architecture and Planning, Architecture, Engineering & Design, Design Services, Construction
Keywords	Architecture, Design, Studio, Building Design, Architectural Design, Creative, Design Services, Design Consulting, Innovative Design, Space Planning, Interior Design, Sustainable Design, Construction Drawings, Architectural Visualization, Project Management, Master Planning, Drafting Services, Urban Design, Landscape Architecture, 3d Modeling
Competitors	Advantage Car Rental, Infinity Marketing Team, LLC, Media Dynamics, The Brand Crew, Brandify, Brand Builders \| Brand Activists, Buzzmarketing, Creative Minds Agency, AdWise, Copy Write Agency Inc +8 more (view full list)
SIC	SIC Code 87 Companies, SIC Code 871 Companies
NAICS	NAICS Code 541 Companies, NAICS Code 54131 Companies, NAICS Code 5413 Companies, NAICS Code 54 Companies

HapstakDemetriou+ Questions

What is the annual revenue of HapstakDemetriou+?

The HapstakDemetriou+ annual revenue was $5 million in 2026.

Who is the Founding Partner and Principal of HapstakDemetriou+?

Peter Hapstak is the Founding Partner and Principal of HapstakDemetriou+.

How many people are employed at HapstakDemetriou+?

11 people are employed at HapstakDemetriou+.

Where is HapstakDemetriou+ based?

HapstakDemetriou+ is based in Washington, District of Columbia.

What is the NAICS code for HapstakDemetriou+?

The NAICS codes for HapstakDemetriou+ are [541, 54131, 5413, 54].

What is the SIC code for HapstakDemetriou+?

The SIC codes for HapstakDemetriou+ are [87, 871].

Top HapstakDemetriou+ Employees

Peter Hapstak

Founding Partner and Principal at HapstakDemetriou+

Washington, DC, US
1
- hd-ad.com
3
- +1 202-487-XXXX
- +1 202-841-XXXX
- +1 202-333-XXXX
Soo Han

Senior Architectural Designer at HapstakDemetriou+

Washington, DC, US
2
- hotmail.com
- hd-ad.com
2
- +1 703-220-XXXX
- +1 703-646-XXXX
Chris Corneal

Project Manager at HapstakDemetriou+

Washington, DC, US
5+
- hd-ad.com
- gmail.com
- hotmail.com
- comcast.net
- aol.com
- yahoo.com
5+
- +1 202-808-XXXX
- +1 202-333-XXXX
- +1 703-772-XXXX
- +1 443-694-XXXX
- +1 410-647-XXXX
- +1 901-277-XXXX
Kendrea Snead

Director of Marketing at HapstakDemetriou+

Washington, DC, US
1
- gmail.com
1
- +1 434-409-XXXX
Bill Young

Studio Director at HapstakDemetriou+

Alexandria, VA, US
2
- hd-ad.com
- gmail.com
5+
- +1 571-239-XXXX
- +1 202-808-XXXX
- +1 908-477-XXXX
- +1 202-280-XXXX
- +1 202-243-XXXX
- +1 410-243-XXXX
Callie Gramling-Gobes

Interior Designer at HapstakDemetriou+

Falls Church, VA, US
1
- hd-ad.com
1
- +1 703-297-XXXX
Marc Louis Santos

Office Manager at HapstakDemetriou+

Silver Spring, MD, US
1
- hd-ad.com
1
- +1 571-431-XXXX
Alexi Adamstein

Architect at HapstakDemetriou+

Silver Spring, MD, US
1
- hd-ad.com
1
- +1 202-714-XXXX
Jeff Carroll

Project Designer at HapstakDemetriou+

Washington, DC, US
1
- gmail.com
1
- +1 831-331-XXXX
Elisabeth Oliver

Architectural Designer at HapstakDemetriou+

Washington, DC, US
1
- +1 908-358-XXXX