Rinker Design Associates, P.C.
Rinker Design Associates, P.C. is a Virginia-based civil engineering firm with 250+ employees across 10 offices, delivering transportation, water, wastewater, environmental, surveying, and right-of-way services primarily to VDOT, municipalities, and utilities across the Mid-Atlantic.
- Company typePrivate
- Founded1980
- HeadquartersManassas, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Rinker Design Associates, P.C. does
Rinker Design Associates, P.C. (RDA) is a Virginia-based professional civil engineering corporation founded in 1980, employing 250+ staff across 10 offices spanning Manassas (HQ), Fairfax, Fredericksburg, Richmond, Virginia Beach, Waynesboro, Abingdon, Galax, and Big Stone Gap. The firm delivers integrated engineering, surveying, environmental, right-of-way, construction management, and GIS services to government agencies, municipalities, utilities, and private developers, with deep specialization in VDOT and AASHTO standards and 13 documented service lines ranging from transportation and structures/bridges to water, wastewater, utilities, traffic, and site civil design.
RDA's commercial model is professional services revenue generated through project-based fees under competitive bidding and on-call contracts, with an enterprise field sales motion targeting state DOTs, municipalities, and utility authorities. The firm reports 10,000+ cumulative projects and 33 alternative delivery engagements (Lead Designer on 22), including VDOT's first Progressive Design-Build project, indicating capability in higher-margin collaborative delivery models. Customer concentration sits with public-sector clients — most prominently VDOT — supplemented by municipal water/sewer authorities and a smaller portfolio of private development work.
In 2024, RDA became part of Trilon, a multi-platform infrastructure consulting group targeting Top 5-10 industry status by 2030. The partnership positions RDA alongside sister firm DRMP, with stated intent to expand work across the southeastern United States beyond its Virginia core. Leadership comprises President/CEO Mo Kim, PE, DBIA; COO/Director of Engineering Mark Gunn, PE, DBIA; and CBO Darell Fischer, PE, DBIA. Technology footprint centers on GIS, AASHTO/VDOT design standards, and alternative project delivery know-how rather than proprietary software products.
Rinker Design Associates, P.C. firmographics
Firmographics- Name
- Rinker Design Associates, P.C.
- Legal name
- Rinker Design Associates, P.C.
- Website
- https://rdacivil.com
- Company type
- Private
- Founded year
- 1980
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Rinker Design Associates, P.C. is a Virginia-based civil engineering firm with 250+ employees across 10 offices, delivering transportation, water, wastewater, environmental, surveying, and right-of-way services primarily to VDOT, municipalities, and utilities across the Mid-Atlantic.
- Ownership category
- akta.pro rank
Rinker Design Associates, P.C. industry classification
Industry- Product category
- Civil Engineering Services
- NAICS
- Other Specialized Design Services (54149)
- SIC
- Water, Sewer, Pipeline, Comm & Power Line Construction (1623)
- akta.pro primary industry
- Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)
- akta.pro secondary industry
- Urban Planning & Master Planning (BPAHAKAD)
Keywords
Where Rinker Design Associates, P.C. is headquartered
LocationHeadquarters
- HQ city
- Manassas
- HQ country
- United States
- HQ region
- North America
Offices10 records
Markets served
Rinker Design Associates, P.C. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Others
Revenue model
- Civil Engineering Professional Services: RDA provides professional civil engineering services to government agencies, municipalities, and private industries. Revenue is generated through project-based fees for design, surveying, construction management, and inspection services across transportation, utilities, water, wastewater, and environmental disciplines.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels5 records
Rinker Design Associates, P.C. product offering
Product offeringCore offering
Rinker Design Associates, P.C. is a civil engineering professional services firm delivering planning, design, and construction management for public infrastructure. Its services span transportation, utilities, water, wastewater, environmental, GIS, surveying, right of way, site civil, structures and bridges, traffic engineering, construction management, and alternative project delivery, primarily for Virginia Department of Transportation, local municipalities, and private developers.
Product overview
Rinker Design Associates (RDA) is a Virginia-based civil engineering firm offering a comprehensive portfolio of 13 core professional services for infrastructure projects. The services span transportation (highways, interchanges, bridges), utilities (water, wastewater, gas, electric, fiber), environmental compliance, land acquisition, surveying, and construction management. These services operate as an integrated offering, with teams often collaborating across disciplines on projects—for example, Right of Way teams supporting Transportation projects, or GIS technology enhancing Water and Wastewater asset management. The company operates as a single unified civil engineering practice rather than discrete software products.
Differentiator
Problem solved
Functional benefit
Products and services
- Transportation Engineering Planning, design, and engineering services for roadway and transportation infrastructure projects, delivered primarily to state departments of transportation and municipal clients.
- Utilities Engineering Engineering services for utility infrastructure, including stormwater and underground utilities, serving public agencies and private developers.
- Water and Wastewater Engineering Planning and design of water and wastewater systems for municipalities, utilities, and private clients.
- Environmental Services Environmental engineering and permitting services supporting infrastructure and development projects.
- GIS Services Geographic Information Systems mapping and spatial data services for infrastructure and asset management.
- Surveying Land surveying services supporting infrastructure, land development, and right-of-way projects.
- Right of Way Services Right-of-way acquisition and management services for transportation and infrastructure projects.
- Site Civil Engineering Site civil engineering services for land development and private development projects, including grading, drainage, and site layout.
- Structures and Bridges Structural engineering and bridge design services for public infrastructure projects.
- Traffic Engineering Traffic engineering and analysis services supporting transportation and land development projects.
- Construction Management Construction management and inspection services for public infrastructure projects.
- Alternative Project Delivery Alternative project delivery services such as design-build and similar methods for infrastructure clients.
Quantifiable outcome
- Over 10,000 projects successfully delivered over 44 years
- +2 more outcomes
Companies that use Rinker Design Associates, P.C.
Customer profileNamed customers8 records
Segments5 records
Ideal customer profiles2 records
Rinker Design Associates, P.C. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Rinker Design Associates, P.C. partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and minor.
- TriloncoreRDA joined the Trilon family of infrastructure consulting firms in 2024. Trilon aims to build a Top 5-10 infrastructure consulting firm by 2030 by bringing together the nation's best engineering and planning firms. The partnership enables RDA to benefit from expanded resources and sister firm support while maintaining its identity and operations. President Mo Kim noted the partnership enables RDA to become an even better company for employees and clients, fund growth and ownership transition, and compete in the consolidating architecture, engineering, and construction industry.
- DRMPminorDRMP is a sister firm within the Trilon family. With the recent partnership with Trilon and DRMP, RDA's work is continuing to expand across the southeastern United States. The relationship provides collaborative opportunities between the engineering firms under the Trilon umbrella.
- Virginia Department of Transportation (VDOT)coreRDA has extensive ongoing working relationships with VDOT, designing bridges and transportation infrastructure per VDOT standards. RDA has served as Lead Designer on VDOT's first Progressive Design-Build project. Staff are certified for VDOT inspections and work within VDOT frameworks and local standards.
Scale indicators8 records
Recent moves5 records
Expansion highlights5 records
Rinker Design Associates, P.C. competitors and assessment
Company assessmentDirect peers
- DRMP: Sister firm under the Trilon platform offering identical civil engineering, transportation, water, and construction management services. Direct peer given shared parent, overlapping service portfolio, and stated collaboration on projects across the southeastern U.S.
- Kimley-Horn: Top U.S. privately-held engineering consulting firm with strong transportation, water, and land development practices. Direct competitor for VDOT and Mid-Atlantic municipal on-call contracts, and a benchmark mid-sized peer by culture and ownership structure.
- Timmons Group: Virginia-headquartered civil engineering consulting firm with strong transportation, water resources, and land development practices. Direct peer competing for the same VDOT and Virginia municipal clients with similar service mix and regional footprint.
- Michael Baker International: Engineering consulting firm with deep transportation, bridge, and water practices serving state DOTs and municipalities. Direct competitor for VDOT and Mid-Atlantic infrastructure work with comparable mid-sized firm operating model.
- Volkert: Engineering firm with strong transportation and water practices serving state DOTs across the Southeast. Comparable by service mix, mid-sized scale, and public-sector client base, including design-build delivery experience.
- Whitman, Requardt & Associates (WRA): Mid-Atlantic engineering firm with deep transportation, water, wastewater, and structural bridge practices serving Virginia, Maryland, and D.C. agencies. Direct competitor for VDOT and Mid-Atlantic municipal on-call contracts with comparable size and service mix.
Regional players
- Clark Nexsen: Mid-Atlantic architecture and engineering firm with transportation, water, and site civil practices based in Virginia and North Carolina. Direct competitor for VDOT and Virginia local-government work, with comparable size and regional focus.
Broad incumbents
- WSP USA: Global engineering consulting firm with extensive transportation, water, and environmental practices operating in the Mid-Atlantic. Competitor for large VDOT and Virginia municipal projects, with broader geographic reach and larger scale.
- Stantec: Global engineering consulting firm with significant water, transportation, and environmental practices serving municipalities and DOTs. Competes for VDOT and Virginia local-government work with broader geographic and service breadth.
- AECOM: Global infrastructure consulting firm with major transportation, water, and environmental practices serving state DOTs and large municipalities. Competitor for the largest VDOT mega-projects and broader Mid-Atlantic public-sector work.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Rinker Design Associates, P.C. social profiles
Digital presenceRinker Design Associates, P.C. compliance and trust
Trust signalCompliance1 record
Rinker Design Associates, P.C. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rinker Design Associates, P.C. leadership team
Management profileNumber of profiles
Profiles3 records
Rinker Design Associates, P.C. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rinker Design Associates, P.C. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Rinker Design Associates, P.C.
What does Rinker Design Associates, P.C. do?
Rinker Design Associates, P.C. is a civil engineering professional services firm delivering planning, design, and construction management for public infrastructure. Its services span transportation, utilities, water, wastewater, environmental, GIS, surveying, right of way, site civil, structures and bridges, traffic engineering, construction management, and alternative project delivery, primarily for Virginia Department of Transportation, local municipalities, and private developers.
Is Rinker Design Associates, P.C. a public or private company?
Rinker Design Associates, P.C. is a private company. It is classified as corporate owned and is currently operating.
When was Rinker Design Associates, P.C. founded?
Rinker Design Associates, P.C. was founded in 1980. It employs 101 to 250 people.
Where is Rinker Design Associates, P.C. based?
Rinker Design Associates, P.C. is headquartered in Manassas, United States, in the North America region.
How does Rinker Design Associates, P.C. make money?
One revenue line is on record: civil Engineering Professional Services.
Who are Rinker Design Associates, P.C.'s main competitors?
Direct peers on record are DRMP, Kimley-Horn, Timmons Group, Michael Baker International, Volkert and Whitman, Requardt & Associates (WRA). Clark Nexsen is listed as a regional player. Broad incumbents are WSP USA, Stantec and AECOM.
Does Rinker Design Associates, P.C. have an API?
No public API is recorded for Rinker Design Associates, P.C..
What industry is Rinker Design Associates, P.C. in?
Rinker Design Associates, P.C.'s product category is Civil Engineering Services. Its primary akta.pro industry code is EUANALAE, Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight), with a secondary code of BPAHAKAD, Urban Planning & Master Planning. Its NAICS code is 54149 and its SIC code is 1623.