KDG Engineering, LLC

What KDG Engineering, LLC does

KDG Engineering, LLC (legal name Kobayashi Design Group Engineering LLC) is a Lakewood, Colorado-based professional engineering firm founded in 2009 by Stan Kobayashi, PE after a 33-year industry career. Operating as a minority-owned small business, the firm is certified as DBE, ESB, MWBE, EBE, and SBE, and is CDOT prequalified across seven disciplines: Bridge Inspection, Bridge Design, Civil Engineering, Highway and Street Design, Engineering Management (Contract Administration), Engineering Management (Construction), and Structural Engineering. The company employs approximately 10 people and serves government transportation agencies (including CDOT, Denver International Airport, Denver Transit Operators, and the Aerotropolis Regional Transportation Authority), engineering consulting firms requiring specialized structural support (AtkinsRealis, Shrewsberry Engineering, BEAM LONGEST and NEFF), and private infrastructure developers in the Denver metropolitan area and Colorado.

The firm's core service offerings span bridge design and rehabilitation, structural independent design checks, bridge load rating using AASHTOWARE BrR, nondestructive bridge inspection and asset management documentation, and site civil engineering for roadway and infrastructure projects. Underlying technical capabilities rely on industry-standard engineering software, including AASHTOWARE BrR for load rating, PS Beam and LEAP Concrete for prestressed beam analysis, LPile for substructure/deep foundation analysis, and Finite Element Analysis (FEA) for virtual modeling of complex bridge structures with virtual truck loading. The firm has developed specialized techniques for analyzing historical bridge structures dating to the 1930s in collaboration with CDOT Staff Bridge, and has won an American Concrete Pavement Association (ACPA) Award for the East Economy Lot Rehabilitation project with AtkinsRealis.

KDG generates revenue through project-based professional engineering services fees using a sales-led direct engagement model. The firm acquires clients through direct outreach, referrals, and demonstrated project track record, with no disclosed pricing model and no public pricing transparency. Its recurring revenue anchor is a multi-year annual inspection contract covering 45 commuter rail bridges operated by Denver Transit Operators. Marketing relies on the company website portfolio, client testimonials, and earned industry recognition. The company is privately held, founder-owned, and has not raised institutional funding.

Name

KDG Engineering, LLC

Legal name

Kobayashi Design Group Engineering LLC

Website

https://kdgengineering.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

KDG Engineering is a minority-owned Colorado-based professional engineering firm providing structural, bridge design, load rating, inspection, and civil engineering services to government transportation agencies and engineering consulting firms in the Denver metropolitan area.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Engineering Services (54133), Engineering Services (541330)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Structural engineering services
• Bridge design services
• Bridge inspection services
• Load rating analysis
• Civil engineering consulting

Headquarters

HQ city

Lakewood

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services - Structural Design: Project-based professional engineering fees for bridge design, minor structure design, and structural independent design checks. Services include superstructure/substructure design, bridge load ratings, and design verification.
2. Bridge Inspection Services: Recurring inspection contracts for bridge maintenance and asset management. Includes annual/periodic bridge inspection programs for transit authorities with documentation and maintenance recommendations.
3. Project Management and Construction Administration: Engineering management services including contract administration and construction phase support.
4. Site Civil Engineering: Civil engineering services including roadway design and site development for infrastructure projects.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

KDG Engineering, LLC is a minority-owned small business providing professional structural and civil engineering services. The firm specializes in new and rehabilitation bridge design, bridge inspection of highway and railroad bridges, bridge load rating using AASHTOWARE BrR, structural independent design checks, buried structure design and retrofitting, and site civil engineering for public and private clients primarily in Colorado.

Product overview

KDG Engineering, LLC provides professional engineering services primarily in structural design, including bridge design, minor structure design, and bridge inspections. The firm also offers civil engineering services such as project management, roadway design, site civil engineering, and construction management and administration. The company operates as a single-service firm organized around project categories: Bridge Inspection (DTO Bridge Inspection, CDOT Off-System Load Rating), Structural Design (I-70 Aerotropolis Parkway Interchange, Statewide Non-Project Specific Bridge Design Services), and Site/ Civil Engineering (Denver East Economy Parking Lot, United Airlines Remote Aircraft Parking Pad).

Differentiator

Problem solved

Functional benefit

Products and services

• Bridge Inspection Services
• Bridge Load Rating Services
• Bridge Design Services
• Structural Independent Design Checks
• Site Civil Engineering
• Project Management and Construction Administration

Quantifiable outcome

• Successfully delivered projects for public and private clients with positive client testimonials
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• HDR Inc. Global engineering, architecture, and environmental consulting firm with a substantial transportation and bridge practice. Competes with KDG for CDOT-style transportation work but offers a much broader portfolio.
• Stantec: Global engineering, architecture, and environmental consultancy with a sizable U.S. bridge and transportation infrastructure practice. Comparable on bridge and inspection services but operates as a broad incumbent across many sectors.
• TranSystems: Large transportation and infrastructure consulting firm serving DOTs, transit authorities, and airports with bridge, highway, and inspection capabilities. Overlaps with KDG on bridge and inspection work but operates broadly across transportation and freight as well.
• AtkinsRéalis: Major engineering services firm with U.S. transportation infrastructure practice spanning highways, bridges, and aviation. Both a client (AtkinsRéalis used KDG on East Economy Lot) and competitor for similar CDOT and DIA bridge scopes.
• AECOM: Global infrastructure consulting firm with a large U.S. transportation and bridges practice serving the same client types as KDG (DOTs, transit authorities, airports). Comparable only at the subconsultant-services level; far larger and broader.
• WSP USA: One of the largest global engineering consultancies with a deep bridge and transit infrastructure practice. Overlaps with KDG on bridge design, inspection, and load rating work for transit and DOT clients, but at vastly greater scale.

Direct peers

• KPFF Consulting Engineers: Structural and civil engineering consultancy with deep bridge and infrastructure practice. Closely comparable to KDG in delivery model — specialized structural/civil teams serving public agencies and large primes — but with significantly more staff and offices.
• Modjeski and Masters: Specialty bridge and structural engineering consultancy focused on bridge design, inspection, and load rating. Highly comparable niche to KDG's bridge design and inspection practice, although larger and serving multi-state DOTs.
• Wiss, Janney, Elstner Associates (WJE): Employee-owned engineering firm specializing in structural engineering, bridge inspection, and failure analysis. Comparable to KDG on structural investigation and independent engineering services, though much larger and national in scope.
• TYLin International: Global infrastructure consulting firm with one of the strongest U.S. bridge engineering practices. Comparable to KDG in core bridge design, load rating, and inspection services, with significantly greater scale and geographic reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kdg-engineering-llc

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 KDG Engineering, LLC