What Siegfried Engineering & Construction does

Siegfried Engineering & Construction is a Houston-based civil engineering consulting firm founded in 2011 by Robert H. Siegfried, P.E., MBA. The firm provides construction engineering and inspection (CEI), plans, specifications, and estimates (PS&E), public works, traffic and transportation engineering, and land development services to public-sector clients across Texas, including TxDOT, the Harris County Toll Road Authority, the North Texas Tollway Authority, Harris County, Montgomery County, and the City of Houston, as well as private developers. Its project portfolio spans contracts ranging from roughly $1.5 million to more than $200 million in construction value.

The firm is TxDOT-prequalified in more than 30 work categories and holds DBE, HUB, and SBE certifications, which qualify it to compete for both unrestricted and small-business set-aside contracts. Its leadership team collectively brings over 100 years of TxDOT experience, including former TxDOT District Directors and Area Engineers and a Vice President who previously managed more than $2 billion in freeway widening work. Siegfried Engineering & Construction is a privately held LLC operating from a single Houston office with between 11 and 50 employees.

Revenue mechanics follow standard professional-services consulting: fees are generated through fixed-price engineering contracts, cost-plus CEI assignments, and unit-rate inspection work, with new business captured primarily through competitive government procurement, qualifications-based selections, and renewals from prior TxDOT and local-agency clients. Customer concentration is heavily skewed toward Texas transportation agencies, with TxDOT serving as the anchor relationship.

Name

Siegfried Engineering & Construction

Legal name

Siegfried Engineering & Construction, LLC

Website

https://siegfriedec.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

11–50 employees

Short description

Siegfried Engineering & Construction is a Houston-based civil engineering consulting firm providing CEI, PS&E, traffic/transportation, and land development services to TxDOT, HCTRA, NTTA, and Texas municipal and county clients.

Ownership category

akta.pro rank

Product category

Civil Engineering Consulting Services

NAICS

Engineering Services (541330), Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Civil engineering consulting
• Construction engineering inspection
• Transportation infrastructure services
• Public works engineering
• Land development engineering

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Engineering Consulting Services: Professional engineering consulting services including Construction Engineering & Inspection (CEI), Plans Specifications & Estimates (PS&E), Public Works, Traffic & Transportation, and Land Development. Revenue is generated through project-based consulting contracts with government agencies and private sector clients. Projects range from small-scale roadway improvements to major freeway widenings exceeding $200M in construction costs.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Siegfried Engineering & Construction is a Houston-based civil engineering consulting firm that provides Construction Engineering & Inspection (CEI), Plans Specifications & Estimates (PS&E), Public Works, Traffic & Transportation, and Land Development services for state, regional, county, and municipal transportation agencies as well as private developers throughout Texas. Projects range from small-scale roadway improvements to major freeway widenings exceeding $200 million in construction cost, delivered under TxDOT, HCTRA, NTTA, City of Houston, and Harris County contracts.

Product overview

Siegfried Engineering & Construction, LLC is a professional engineering and consulting firm offering a unified portfolio of infrastructure services. The core offerings include Construction Engineering & Inspection (CEI), CEI & Engineering Services, Plans Specifications & Estimates (PS&E), Public Works, Traffic & Transportation, and Land Development services. These services work together to provide comprehensive project lifecycle support from planning and design through construction management and inspection, serving public agencies such as TxDOT, HCTRA, NTTA, and municipal clients throughout Texas.

Differentiator

Problem solved

Functional benefit

Products and services

• Construction Engineering & Inspection (CEI) Comprehensive construction engineering and inspection services including project management, roadway and bridge inspection, utility engineering, records/auditing, environmental inspection, and construction superintendent functions delivered to public agencies such as TxDOT, HCTRA, and NTTA on infrastructure projects throughout Texas.
• Plans, Specifications & Estimates (PS&E) Preparation of detailed plans, specifications, and cost estimates for roadway, bridge, and infrastructure construction projects for public agencies and private developers in Texas.
• Public Works Services Municipal infrastructure services including neighborhood sewer system improvements, pump station improvements, water main design, flood gauge and flood warning systems, and traffic and engineering on-call services for municipal clients.
• Traffic & Transportation Services Traffic engineering studies, signal timing, traffic control systems analysis and implementation, intelligent transportation systems (ITS), signing, pavement marking, channelization, illumination, signalization, and rail-highway design for state and municipal transportation clients.
• Land Development Services Site plans, traffic impact analyses (TIA), and permitting services for commercial and residential development projects in the Houston metropolitan area.
• CEI & Engineering Services Integrated engineering consulting encompassing traffic studies, traffic design, traffic control plans, route studies and schematic design, roadway design, highway design, and design-build services for traffic, ITS, and illumination projects.

Quantifiable outcome

• Managed 18+ complex freeway widening projects with combined costs exceeding $2 billion in construction value
• +1 more outcomes

Named customers6 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• HDR: Global engineering firm with deep Texas transportation and infrastructure presence, regularly winning TxDOT mega-programs. Comparable in transportation focus but with substantially broader geographic and service-line footprint.
• Burns & McDonnell: National employee-owned engineering firm with substantial Texas transportation, CEI, and infrastructure practice. Competes for the same TxDOT and toll-authority work but at much larger scale across multiple verticals.
• AECOM: Global infrastructure consulting firm with major Texas transportation practice serving TxDOT, HCTRA, and major toll authorities. Competes with SEC on large CEI and design pursuits but with vastly greater resources and self-perform capacity.
• Kimley-Horn: National consulting firm with a top-quartile transportation practice in Texas including TxDOT districts, toll authorities, and municipalities. Overlaps with SEC on CEI, traffic, and roadway design but operates at significantly larger scale nationwide.

Direct peers

• Pape-Dawson Engineers: San Antonio-headquartered civil engineering firm offering transportation, land development, water resources, and environmental services across Texas. Closely comparable to SEC in terms of Texas-focused public-sector transportation practice and mid-size scale.
• LJA Engineering: Houston-based full-service civil engineering and surveying firm serving TxDOT, municipalities, and private developers across Texas. Comparable in offering breadth (transportation, public works, land development) and geographic focus.
• Halff Associates: Texas-based engineering, architecture, and planning firm with strong TxDOT, municipal, and land development practices. Direct peer in transportation CEI and design across the same Texas market.
• KCI Technologies: Engineering firm with significant Texas transportation practice following acquisition of Brown & Gay Engineers. Direct overlap with SEC in TxDOT CEI and roadway design across multiple districts.
• Freese and Nichols: Texas-based engineering firm with deep municipal, transportation, and water/wastewater practices serving public agencies. Comparable in public-sector orientation and statewide Texas reach.
• Cobb, Fendley & Associates: Texas-headquartered infrastructure consulting firm specializing in transportation, utility coordination, and public works. Highly comparable niche focus on TxDOT support and similar scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/in/robertsiegfriedpe
• Xx.com/Siegfried_EC

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Siegfried Engineering & Construction