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Plumbob Information

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Architecture

Website http://www.onionflats.com
Revenue $4 million
Employees 14 (3 on RocketReach)
Address 111 W Norris St, Philadelphia, Pennsylvania 19122, US
Phone +1 215-426-6466
Fax (815) 301-3431
Industry Design, Architecture, Engineering & Design, Construction
Web Rank 8 Million
Keywords Facade Design, Architecture Design, Building Design, Architectural Services, Design Firm, Construction Drawings, Structural Design, Master Planning, Urban Design, Architectural Drafting, Building Plans, Space Planning, Interior Architecture, Sustainable Design, Landscape Architecture, Parametric Design, Architectural Visualization, Building Information Modeling, Computer Aided Design, Architectural Model Making
Competitors Habitat for Humanity International, Treehouse Software, Urban Design Associates | UDA, The Sustainable Design Group, ECO LOGICAL BUILDERS, Synergy Designer Homes, Affordable Housing Solutions, Craftsman Builders, Dream Homes Design, Renewable Energy Design +5 more (view full list)
SIC SIC Code 871 Companies, SIC Code 87 Companies
NAICS NAICS Code 541 Companies, NAICS Code 54131 Companies, NAICS Code 5413 Companies, NAICS Code 54 Companies

Plumbob Questions

The Plumbob annual revenue was $4 million in 2026.

Howard Steinberg is the Owner and Managing Partner of Plumbob.

3 people are employed at Plumbob.

Plumbob is based in Philadelphia, Pennsylvania.

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

The SIC codes for Plumbob are [871, 87].

Top Plumbob Employees

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