Hennessy Construction Services

What Hennessy Construction Services does

Hennessy Construction Services is a privately held, non-residential construction firm headquartered at 2300 22nd St. North, St. Petersburg, Florida, serving the Tampa Bay market. Founded in 1920 by A.P. Hennessy, the company has operated continuously for over a century and currently employs 11–50 people. Its service portfolio is built around three delivery models — Construction Management, General Contracting, and Design/Build — executed across six vertical segments: Community, Education, Commercial, Public, Multi-Family, and Religious. Notable named projects include the Florida Holocaust Museum, the Museum of Fine Arts (for which Hennessy built the original structure in 1964), Eckerd College, the Tampa Bay Rowdies' Al Lang Field renovation, PEMHS' Children's Stabilization and Crisis Center, City of Madeira Beach civic facilities, and Daystar Life Center.

The firm operates as a project-based professional services business. Revenue is generated through one-time, project-scoped fees for construction management, general contracting, and design/build engagements; pricing is not publicly disclosed and is quote-based per project. Its stated go-to-market is direct enterprise field sales — engaging clients from early planning through closeout — with the majority of work delivered under construction management, where the firm acts as 'guardian of the client's time and budget.' Repeat business and referrals are explicitly cited as the primary demand-generation channel, supported by long-standing subcontractor relationships in the Tampa Bay area that enable competitive bidding.

Operationally, Hennessy runs a low-headcount, relationship-driven model with no disclosed software platform, proprietary technology, API, or app product. The leadership team comprises President Mark Stalker, VP of Operations Ken Nielsen, Director of Development John Irvin, Preconstruction Services Manager/Senior Estimator Craig Hendrickson, and Safety/Quality Control/Warranty Manager Sam Hill. Ownership structure is not disclosed; there is no parent company, no institutional investor, no funding rounds, no M&A activity, and no patents or formal awards in the supplied record. Marketing is conducted almost exclusively through the company's website (hcsfl.com), which functions as a project portfolio and lead-generation surface.

Name

Hennessy Construction Services

Legal name

Hennessy Construction Services

Website

https://hcsfl.com

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

11–50 employees

Short description

Hennessy Construction Services is a privately held, Tampa Bay-based non-residential construction firm founded in 1920, delivering Construction Management, General Contracting, and Design/Build services across community, education, commercial, public, multi-family, and religious segments.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Nonresidential Building Construction (2362), Commercial and Institutional Building Construction (23622)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Construction Management (Agency/Owner’s Rep) (IMAFAAAC)

Keywords

• Commercial construction
• Construction management
• Design build services
• General contracting
• Non-residential construction

Headquarters

HQ city

St. Petersburg

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales

Revenue model

1. Construction Services: Hennessy Construction generates revenue through one-time project-based fees for construction management, general contracting, and design/build services. The majority of their business comes from construction management services where they serve as guardians of client time and budgets, delivering projects on time and within or below budget. Repeat business and client referrals form a significant portion of their revenue stream.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Hennessy Construction Services provides non-residential construction services in the Tampa Bay area, including Construction Management, General Contracting, and Design/Build delivery. The majority of its business is construction management, in which the firm acts as guardian of client time and budget from early planning through project completion and closeout.

Product overview

Hennessy Construction Services offers three core construction service offerings: Construction Management, General Contracting, and Design/Build. These services operate across six market segments: Community, Education, Commercial, Public, Multi-Family, and Religious. The company functions as a unified service portfolio rather than a software platform, with services tailored to Tampa Bay area projects including museums, schools, religious facilities, multi-family housing, and public works.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction Management Experienced project managers oversee every aspect of the construction project to ensure completion on time and within budget. Hennessy serves as guardian of the client's time and money, providing best value and ensuring no surprises from planning through project completion and closeout. This is the largest of Hennessy's three service lines.
• General Contracting Turnkey construction solutions from planning and design through construction and completion. Founded on providing at-risk general contracting services, with strong subcontractor relationships enabling competitive bids from the highest quality subcontractors.
• Design/Build Integrated design and construction approach as a single-source provider. Hennessy assembles Design/Build teams of top design professionals from the Tampa Bay area, analyzing all systems and evaluating cost and schedule implications to eliminate costly re-designs and protect client interests.

Quantifiable outcome

• Projects completed on time and within or below budget
• +1 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators2 records

Recent moves4 records

Direct peers

• Brasfield & Gorrie: Large Southeastern U.S. general contractor with deep Florida presence offering construction management, design/build, and general contracting across commercial, healthcare, education, and multi-family — directly comparable service mix and segment overlap to Hennessy in the Tampa Bay region.
• Moss Construction: Florida-based general contractor and construction management firm with strong Tampa Bay footprint, serving commercial, education, healthcare, and cultural clients — closely aligned delivery methods and regional concentration to Hennessy.
• The Weitz Company: Privately held national construction firm offering commercial construction management, design/build, and general contracting across similar institutional segments — comparable mid-size privately held GC profile.
• Manhattan Construction Company: Privately held regional and national general contractor offering construction management, design/build, and general contracting across commercial, institutional, religious, and cultural facilities — closely aligned delivery methods and segment mix.

Broad incumbents

• Suffolk Construction: National construction management and design/build firm with significant Florida operations, competing for many of the same commercial, institutional, and multi-family clients as Hennessy in the Tampa Bay market.
• Gilbane Building Company: Large privately held national construction manager and design/build firm with established presence across the Southeast, competing for institutional, healthcare, education, and public-sector projects similar to Hennessy's portfolio.
• Turner Construction Company: Largest domestic general contractor in the U.S. with national design/build and construction management capabilities and active Florida operations, competing for the same non-residential institutional and commercial work.
• Clark Construction Group: Major national construction management and design/build firm with Southeast presence, competing for large-scale institutional, healthcare, education, and civic projects similar to Hennessy's target segments.
• Hunt Construction Group: National construction manager with strong sports, entertainment, and cultural facility portfolio — directly comparable in stadium and museum work (e.g., Tampa Bay Rowdies-type venues) and broader institutional delivery.
• Balfour Beatty US: Large national general contractor and construction manager with active Florida operations serving commercial, education, multi-family, and public-sector clients — overlaps with Hennessy's segment focus.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/HennessyConSvc
• Facebookfacebook.com/Hennessy-Construction-Services-83771062730
• LinkedInlinkedin.com/company/hennessy-construction-services

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Hennessy Construction Services