What Parthenon does

Parthenon Corporation is a privately held, Los Angeles-based professional services firm founded in 2018 (per the company website and incorporation records) and operating from 5410 E Beverly Blvd. The firm holds CUCP-certified Small Business Enterprise (SBE) and Disadvantaged Business Enterprise (DBE) designations, along with additional agency certifications, and is classified as a premier MBE/DBE firm in Southern California. Its core offering is the staffing and management of qualified design and construction professionals on major public-infrastructure projects, delivered predominantly as a joint-venture partner alongside tier-one prime contractors such as Skanska, Traylor, Stacy & Witbeck, and Shea. Headcount is in the 11–50 range, and the firm is independently owned, with E. Trias identified as a founder/principal.

The firm's project portfolio is concentrated on multi-billion-dollar Los Angeles transportation and infrastructure programs, with disclosed engagements including the $928M Regional Connector Transit Corridor (Skanska/Traylor JV), the $1.67B Purple Line Extension (STS Team JV), the $320M 6th Street Viaduct Replacement (Skanska and Stacy & Witbeck team), and the $22.3M Mullin Transportation Design Center at Art Center College of Design. Active engagements have broadened to include LAUSD, Los Angeles Community College District, the P2000 Light Rail Vehicle Overhaul Program, the LAWA Roadways Utilities & Enabling project, the San Fernando Valley Light Rail Transit Line, and the Hyundai/Kia Innovation Lab Project. Customer base is overwhelmingly public-sector, anchored by Los Angeles County Metropolitan Transportation Authority (LACMTA), the City of Los Angeles Bureau of Engineering, LAUSD, LACCD, LAWA, and Art Center College of Design.

Commercially, Parthenon operates a professional services revenue model, generating income through project-based subcontracts and JV participation agreements secured via competitive bidding on government procurements. Pricing is not publicly disclosed. The go-to-market is enterprise field sales into large prime-contractor JVs and direct engagement with public agencies in Southern California. Geographic reach is restricted to California, primarily the Los Angeles basin, with no evidence of international or out-of-state operations. There are no disclosed funding rounds, institutional investors, or external ownership.

Name

Parthenon

Legal name

Parthenon Corporation

Website

https://parthenoncorp.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Parthenon Corporation is a Los Angeles-based, CUCP-certified SBE/DBE professional services firm providing qualified design and construction professionals to public agencies and prime contractors on major Southern California infrastructure projects.

Ownership category

akta.pro rank

Product category

Construction Management Services

NAICS

Utility System Construction (2371), All Other Support Services (561990)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600)

akta.pro primary industry

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF)

Keywords

• Construction staffing services
• Infrastructure project management
• Design professional staffing
• Transit construction services
• DBE certified firm

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Others

Revenue model

1. Professional Construction Services: Revenue generated through providing qualified design and construction professionals on major infrastructure projects as part of joint ventures with prime contractors such as Skanska, Traylor, and Stacy & Witbeck.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels2 records

Core offering

Parthenon Corporation provides qualified design and construction professionals for major public infrastructure projects in Southern California. The firm operates as a CUCP-certified Small Business Enterprise (SBE) and Disadvantaged Business Enterprise (DBE) subcontractor within joint venture teams led by prime contractors such as Skanska, Traylor, and Stacy & Witbeck, delivering professional staffing and project support for transit corridors, bridge replacements, and educational facility construction.

Product overview

Parthenon Corporation is a CUCP-certified SBE and DBE professional services firm offering comprehensive design and construction professional staffing for major infrastructure projects in Southern California. The company operates as a single unified service offering, providing qualified professionals across multiple project engagements including transit corridors (Regional Connector, Purple Line Extension), bridge construction (6th Street Viaduct Replacement), and educational facility development (Mullin Transportation Design Center). Rather than a platform-plus-modules architecture, the company delivers project-based professional services tailored to construction management, design, and engineering needs of public agency clients including LACMTA, City of Los Angeles Bureau of Engineering, and Art Center College of Design.

Differentiator

Problem solved

Functional benefit

Products and services

• Design and Construction Professional Services

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core.

• Skanska/Traylor: Regional Connector Constructors JVcoreStrategic or Co-development PartnerParthenon Corporation is part of the Skanska/Traylor: Regional Connector Constructors JV led by Skanska USA Civil West California District Inc. in partnership with Traylor Bros., Inc. The JV is delivering the $928 Million Regional Connector Transit Corridor Project for LACMTA, linking Metro Gold Line, Blue Line, and Expo Line through downtown Los Angeles.
• Skanska Traylor Shea (STS) TeamcoreStrategic or Co-development PartnerParthenon Corporation is part of the STS Team for the Purple Line Extension (Westside Subway) Project, valued at $1.67 Billion. The project extends LACMTA heavy rail from Wilshire/Western to Wilshire/La Cienga.
• Skanska and Stacy & Witbeck TeamcoreStrategic or Co-development PartnerParthenon Corporation is an integral member of the Skanska and Stacy & Witbeck Team for the 6th Street Viaduct Replacement Project valued at $320 Million. The CMGC project involves demolition of existing bridge and construction of new iconic bridge structure over the Los Angeles River.

Scale indicators2 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Kleinfelder: Engineering, construction management, and environmental services firm active in California transportation and infrastructure. Comparable on CM/professional services delivery for transit clients like Caltrans and LA Metro.
• Anser Advisory: DBE/SBE-certified construction management and advisory firm specializing in transit, aviation, and infrastructure programs. Comparable on California public-sector program management work and similar JV positioning.
• Cordoba Corporation: Los Angeles-based minority/women-owned engineering and program management firm providing infrastructure, transportation, and CM services. Highly comparable as a DBE-certified professional services firm pursuing similar JV opportunities on Southern California public infrastructure.
• Psomas: California-based engineering, planning, and construction management firm providing services on transportation, water, and site development projects. Strong peer given shared Southern California transit focus and comparable service scope.

Broad incumbents

• Stantec: Global design and consulting firm with infrastructure and transit capabilities. Comparable on transportation CM and program management services, though at much larger scale.
• AECOM: Global infrastructure consulting firm with a major Los Angeles practice. Serves as a prime contractor or JV partner on the same mega-projects Parthenon supports, making it both a competitor for contracts and a likely contract counterparty on DBE-protected scopes.
• WSP USA: Major global engineering and CM firm. Competes for and participates in California transit programs in roles overlapping with Parthenon's professional staffing scope.
• AECOM Technical Services (legacy Hunt Construction Group): Construction management and at-risk delivery group within AECOM. Comparable work in large-scale public infrastructure delivery where Parthenon participates as a DBE member.
• Jacobs Solutions: Large engineering and program management firm with substantial California transit presence. Provides overlapping CM/professional services for infrastructure clients.
• Hill International: Global construction management and program management firm with deep transit/transportation experience. Overlaps on large public-sector program management work but at far broader scale and depth than Parthenon.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/parthenon-corporation

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Parthenon