TGB

What TGB does

TGB, Inc. is a specialty general contractor founded in 1983 and headquartered at 1104 S. Jefferson Avenue in St. Louis, Missouri. The company provides integrated construction services across electrical, mechanical, traffic signal/ITS, and airport lighting disciplines for government and public-sector clients in the St. Louis metropolitan area and adjacent regions of Illinois. Its service portfolio encompasses electrical power and communication installations, traffic signals and fiber optics infrastructure, FAA-grade airport lighting systems (PAPI, ILS, MALSR), and mechanical work including water, sewer, sprinkler, and HVAC installations. Revenue is generated through project-based contracts awarded via competitive bidding processes for public works, transportation, and civil utility projects; pricing is not publicly disclosed.

TGB holds Woman Owned Business Enterprise (WBE) certification in Missouri and Illinois, as well as Disadvantaged Business Enterprise (DBE) status, both of which provide preferential access to government contracting opportunities. The company is licensed, bonded, and insured, and holds state contractor licensing in both Missouri and Illinois. Notable clients include St. Louis County, the City of St. Louis, the State of Missouri, the City of Kirkwood, the City of St. Peters, the City of St. Charles, St. Louis City Water Division, MSD (Metropolitan St. Louis Sewer District), IDOT, Metrolink, the FAA, and Lambert Airport — spanning municipal, county, state, regional, and federal government tiers.

The business operates with a small in-house construction management team and supplements capacity through a network of trusted subcontractors. Leadership includes Sharon Tielke and Steve Tielke, suggesting family ownership and continuity. The company reports an average employee tenure exceeding 20 years, indicating strong workforce stability. No external investment, private equity, or venture capital backing is evident in the available information, and TGB operates as a privately held, independent corporation.

Name

TGB

Legal name

TGB, Inc.

Website

https://tgbinc.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

TGB, Inc. is a woman-owned specialty general contractor in St. Louis, Missouri, providing electrical, mechanical, traffic signal, ITS, and airport lighting construction services to municipal, state, and federal government clients across Missouri and Illinois.

Ownership category

akta.pro rank

Product category

Specialty Construction Contracting

NAICS

Electrical Contractors and Other Wiring Installation Contractors (23821), Power and Communication Line and Related Structures Construction (237130), Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Electrical Work (1731), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Traffic Management & Intelligent Transportation Systems (Signals, TMCs, Congestion) (BPAIALAC)

Keywords

• Specialty contracting services
• Electrical construction services
• Traffic signal installation
• Airport lighting systems
• Mechanical construction services

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales

Revenue model

1. Construction Services Revenue: Project-based revenue from construction contracts for government and public sector clients. Services include electrical, mechanical, water, sewer, sprinkler, and HVAC installations for transportation and civil utility projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

TGB, Inc. is a specialty general contractor that manages integrated construction projects across electrical, mechanical, and general trades for government clients. The company delivers transportation and civil utility construction — both underground and above ground — including electrical power/communication systems, traffic signals and ITS, airport lighting and signing (PAPI, ILS, MALSR), and mechanical installations (water, sewer, sprinkler, HVAC). Projects are secured through competitive bidding with municipal, county, state, and federal agencies primarily in the St. Louis, Missouri metropolitan area.

Product overview

TGB, Inc. is a specialty general contractor providing integrated construction services across electrical, mechanical, and civil trades. The company operates as a unified service organization rather than a software platform, offering four interconnected service lines: Electrical Services (power, communication, and service work), Traffic Signal and ITS Services (signals, fiber optics, roadway lighting), Airport Lighting and Signing Services (PAPI, ILS, MALSR systems), and Mechanical Services (water, sewer, sprinkler, HVAC). These specialty services are managed under a single construction management team to ensure seamless project execution for transportation, civil utility, and infrastructure projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Electrical Services
• Traffic Signal and ITS Services
• Airport Lighting and Signing Services
• Mechanical Services

Named customers12 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Independent Electrical Contractors (IEC)minorOthersActive membership organization providing networking opportunities, industry resources, and professional development for electrical contractors. Supports industry standards and best practices.

Scale indicators1 record

Recent moves5 records

Expansion highlights3 records

Broad incumbents

• MasTec: Large publicly traded infrastructure construction firm serving utilities, communications, and government across electrical, pipeline, and civil work. Overlaps with TGB's utility infrastructure, communications (fiber), and government contracting portfolio but at vastly greater scale.
• Primoris Services: Public infrastructure construction firm serving utilities, energy, and civil infrastructure markets. Comparable to TGB's utility and civil infrastructure construction focus including water/sewer and electrical work, but operates at national scale.
• Henkels & McCoy: Privately held infrastructure contractor providing engineering and construction for electric, gas, telecom, and government clients. Comparable to TGB in family-owned private status and government/utility contracting focus, with broader geographic reach.
• EMCOR Group: Public mechanical and electrical construction services provider for commercial, industrial, utility, and government clients. Comparable to TGB's combined electrical and mechanical (HVAC, water, sewer) service offerings, though much larger and diversified beyond municipal focus.
• MYR Group: Public electrical construction specialist providing T&D, commercial, and industrial electrical services including traffic signal and roadway lighting work. Larger and geographically diversified, but directly overlapping with TGB in core electrical contracting capabilities for public infrastructure.
• Quanta Services: Leading infrastructure construction company focused on electric power, oil & gas, communications, and renewable energy. Comparable to TGB's electrical/utility infrastructure work but operates nationally with significantly larger scale.
• IES Holdings: Electrical and communications infrastructure provider serving commercial, industrial, and utility markets. Comparable to TGB in electrical contracting and communications/fiber optic infrastructure work, though larger and more diversified.

Others

• HBK Engineering: Engineering and field services firm for utilities, transportation, and municipal infrastructure projects. Adjacent to TGB's traffic signal, fiber, and utility infrastructure work, often serving as a complementary engineering partner rather than a direct construction competitor.

Direct peers

• Aldridge Electric: Mid-size specialty electrical contractor focused on transportation infrastructure (highway lighting, traffic signals, rail transit) for government clients. Closely comparable to TGB in size, scope, and customer base, particularly for IDOT and similar DOT work in the Midwest.
• RailWorks: Specialty contractor for rail and transit infrastructure, including electrical systems, signals, and communications for agencies like Metrolink-style transit authorities. Direct overlap with TGB's Metrolink experience and traffic signal/ITS capabilities.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/tgb-inc

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 TGB