What Porter Construction does

Porter Construction (legal entity Bob Porter Company, Inc.) is a privately held, family-owned commercial general contractor founded in 1979 and headquartered in Woodbine, Maryland, operating across Maryland, Virginia, and the Washington, DC metro area. The firm delivers pre-construction consulting, general contracting, construction management, design-build, and Construction Management at Risk (CMAR) services to public- and private-sector clients, with demonstrated vertical specialization in automobile dealerships, government/municipal facilities, K-12 and higher education, grocery/retail, places of worship, and unique mixed-use spaces. Notable project scale includes a $7.8M+ athletic field development for Howard County, a five-story 800-space parking garage for the Fitzgerald auto group, and a 24,000 sqft firehouse for the Lisbon Volunteer Fire Company.

The business operates on a project-based, quote-driven revenue model with no publicly disclosed standard pricing; each engagement is bid or negotiated against scope, with multi-year contract cadences typical for commercial and institutional work. The company is led by Founder Robert H. Porter Jr. and third-generation President Steven Porter, supported by CFO Curtis DeHaan, with a core staff of 1–10 employees that executes via a subcontractor-heavy delivery model. Marketing is conducted primarily through the company website, project blog, social media, and targeted trade-association engagement (WANADA, ABC, Carroll County Chamber of Commerce), with sales driven by competitive bidding, RFP responses, referrals, and a Bid Center intake funnel.

Underlying technology is conventional for the sector — established project-management methodologies (CMAR, critical path scheduling, design-build integration with architects and engineers) — with no disclosed proprietary software, AI/ML tooling, or digital platform. Sustainability-aligned construction has emerged as a differentiator, including a 90kW rooftop solar installation at headquarters (Dec 2017, Aurora Energy) and an 891kW solar array integrated into the Fitzgerald parking garage project, signaling evolving capability around renewable-ready builds. The company has raised no external funding and operates as an organic, bootstrapped family enterprise.

Name

Porter Construction

Legal name

Bob Porter Company, Inc.

Website

https://porterco.net

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Nonresidential Building Construction (2362)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)

akta.pro secondary industry

Residential General Contracting (New Build) (IMAFAAAB)

Keywords

• Commercial construction services
• General contracting
• Construction management
• Design build services
• Pre construction consulting

Headquarters

HQ city

Woodbine

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain

Revenue model

1. General Contracting Services: Project-based revenue from providing general contracting services for commercial construction projects. Services include pre-construction planning, general construction, construction management, and design-build delivery methods.

Pricing tiers

Distribution channels1 record

Marketing channels4 records

Core offering

Porter Construction is a full-service general contractor providing pre-construction planning, general construction, construction management, and design-build delivery for commercial, governmental, educational, automotive, retail, grocery, and worship clients across Maryland, Virginia, and the DC metro area. The firm also offers Construction Management at Risk (CMAR) as an alternative delivery method with early involvement and transparent pricing.

Product overview

Porter Construction is a full-service commercial and residential general contractor offering a unified portfolio of construction services. The core service offerings include Pre-Construction Services, General Contracting, Construction Management, and Design-Build delivery methods, all delivered through a single integrated approach. The company also provides specialized construction services tailored to specific sectors including Automobile Dealerships, Grocery Stores, and Places of Worship. Additionally, the company offers Construction Management at Risk (CMAR) as an alternative delivery method that provides early involvement and transparent pricing. From concept to completion, the company brings building projects to life across Maryland, Virginia, and the DC metro area.

Differentiator

Problem solved

Functional benefit

Products and services

• Pre-Construction Services Early-stage consulting services including project planning, budget formulation, critical path method scheduling, and feasibility assessment to ensure projects are completed on time and within financial constraints. Targeted at commercial, governmental, and institutional clients.
• General Contracting Full-service project management from planning and design through completion and closeout, providing a single point of contact for all project aspects including coordination with architects and subcontractors. Targeted at commercial, government, and institutional clients.
• Construction Management Professional management of project cost, scope, and timing, including oversight of specialty trades such as glasswork, electrical work, and millwork. Targeted at commercial, government, and institutional clients.
• Design-Build Integrated design and construction services providing a single pathway for project owners to engage design, budget, and constructability aspects through collaboration with architects, engineers, and skilled tradesmen. Targeted at commercial and institutional clients.
• Automobile Dealership Construction Specialized construction services for automobile dealerships including state-of-the-art auto spaces, showrooms, waiting areas, service bays, and parts departments, with expertise in brand management through facility design. Targeted at automobile dealer groups and franchise operators.
• Grocery Store Construction Specialized construction services for supermarkets and food industry facilities, creating safe, clean, and impactful shopping spaces that meet customer needs and attract repeat business. Targeted at grocery chains and supermarket operators.
• Places of Worship Construction Construction services for places of worship designed around community belonging, visibility, and superior quality, with attention to the concerns of community members. Targeted at religious congregations and faith-based organizations.
• Construction Management at Risk (CMAR) An alternative project delivery method providing early involvement during pre-construction and design phases, with open-book pricing, value engineering, and competitive bidding for trade contractors, with CMAR taking total responsibility for construction completion. Targeted at commercial and institutional clients seeking transparent delivery.

Quantifiable outcome

• Expected to offset over 90% of building electric usage with 90kW solar system
• +3 more outcomes

Named customers15 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and minor.

• Aurora EnergycoreStrategic or Co-development Partner · 1 January 2018Partnered with Aurora Energy of Columbia, Maryland for solar power installation on the Fitzgerald parking garage project. Aurora installed 2,475 solar panels (891KW capacity) on the 275,385 sqft garage rooftop. Also installed Porter Construction's own 90kW rooftop solar system at headquarters in December 2017.
• Washington Area New Auto Dealers Association (WANADA)minorGTM or Marketing PartnerPorter Construction is sponsoring WANADA's 'Dealership of Tomorrow' seminar in 2018. WANADA is a regional trade association for automobile dealers in the Washington, D.C. metropolitan area.
• Carroll County Chamber of CommerceminorOthersPorter Construction is an active member of the Carroll County Chamber of Commerce, supporting the local business community in their primary operating region.
• Associated Builders and Contractors (ABC)minorOthersActive member of Associated Builders and Contractors, Baltimore Metro Chapter - a national trade association representing the construction industry.
• Therapeutic and Recreational Riding Center (TRRC)minorOthersPorter Construction is one of the largest contributors to TRRC of Glenwood, MD, supporting since 1983. Mr. Porter serves on its Board of Directors. The company provides free construction services and volunteer days for TRRC maintenance.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Whiting-Turner Contracting Company: Baltimore-headquartered commercial general contractor with deep Mid-Atlantic roots across government, education, healthcare, and commercial projects—directly comparable geography, delivery model, and customer mix to Porter Construction, though operating at substantially greater scale.
• Gilbane Building Company: Family-founded (now employee-owned) commercial GC with major Mid-Atlantic operations in education, government, healthcare, and corporate facilities. Comparable as a multi-generation firm offering pre-construction, CMAR, and design-build across similar vertical markets.
• Clark Construction Group: Bethesda, MD-based commercial GC with a heavy DC/Mid-Atlantic public-sector and commercial portfolio. Directly comparable on territory, customer types (government, education, civic), and full-service delivery methods including CMAR and design-build.
• Manhattan Construction Company: Family-owned commercial GC with diversified public and private sector work including education, government, sports, and healthcare. Directly comparable as a family-operated firm offering similar services across comparable customer verticals.
• Coakley & Williams Construction: Mid-Atlantic commercial GC focused on public-sector, education, healthcare, and institutional clients in Maryland, Virginia, and DC. Closely comparable to Porter on territory, customer base, and project scale.
• Barton Malow: Michigan-headquartered commercial GC with active Mid-Atlantic presence in K-12, higher education, sports, and government work. Comparable in vertical mix (especially education and government) and CMAR/design-build delivery.

Broad incumbents

• DPR Construction: National commercial GC with advanced technical-building capabilities and a broad portfolio across healthcare, education, life sciences, and corporate. Comparable delivery methods (CMAR, design-build) and customer types but operates at materially larger scale with national reach.
• McCarthy Building Companies: National employee-owned commercial GC with strong education, healthcare, and public-sector practices. Comparable on CMAR/design-build delivery and many of the same end markets as Porter, though at national scale.
• Tishman Construction (AECOM Tishman): National commercial GC (part of AECOM) with strong presence in commercial, education, hospitality, and government work. Comparable on delivery methods and customer types, but operates at far greater scale as part of a global infrastructure firm.
• Holder Construction: National commercial GC specializing in CMAR and design-build across corporate, education, sports, and public-sector markets. Comparable delivery methodology and customer overlap, but operates at significantly larger scale.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/PorterConstrInc

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Porter Construction