Public engineering firm directory

Find engineering consulting firms by capability and location.

Search engineering firm profiles built for buyers who need a shortlist, not a sales pitch.

Filters3

D4C Product Development Inc.

San Diego, CA

D4C Product Development is a San Diego-based engineering and product development practice that guides hardware products from concept to market. It integrates mechanical, electrical, and software engineering with industrial design, prototyping, and manufacturing support, serving consumer electronics, IoT devices, environmental technology, and public safety markets.

WebsitePhone1 office13 projectsUpdated Jun 2026

Project: Big Dipper Point of Sale

Service: Design & Research StrategyService: Product Requirements DefinitionService: Concept Development & Product ArchitectureIndustry: ElectronicsIndustry: Consumer ProductsType: Mechanical Engineering+36 more

E3R Inc

San Diego, CA

Exceptional Employees for Exceptional Results

WebsitePhone1 office4 leaders3 credentialsFounded 2011Size Estimate: 1-25 employees

Service detail: Program Management

Service: Program ManagementService: Cost, schedule, performance, and risk managementService: Acquisition document preparation and complianceIndustry: DefenseIndustry: GovernmentType: Defense Engineering+20 more

SB&O Inc

San Diego, CA

Your Vision. Our Expertise.

WebsitePhone2 offices4 projectsFounded 1967Size Estimate: 40 employeesUpdated Jun 2026

Project: Calpine/Otay Mesa Generating Plant

Service: Civil EngineeringService: Site GradingService: Utility PlansIndustry: ResidentialIndustry: CommercialType: Civil Engineering+46 more

SYMVIONICS, Inc.

Arcadia, CA

Developing the Highest Quality Hardware and Software Products

WebsitePhone3 offices2 projects2 leaders1 credentialsFounded 1988

Project: Submarine Skills Training Network (SubSkillsNet)

Service: Training SystemsService: Flight Test SupportService: Hardware EngineeringIndustry: AerospaceIndustry: DefenseType: Aerospace Engineering+19 more

Skyward, Ltd.

Dayton, OH

Service and Solutions Above and Beyond, Excellence Above All

WebsitePhone2 offices1 projects1 leaders16 credentialsFounded 1997

Project: Project Helping Hand

Service: Test & EvaluationService: Vulnerability IdentificationService: Lethality ValidationIndustry: DefenseIndustry: FederalType: Defense Engineering+21 more

Transpacific Technologies, Inc.

Pasadena, CA

Focusing on what Matters Most

WebsitePhone1 office4 projects4 leaders2 credentialsSize Estimate: 1-50 employees

Project: Mars 2020 Mission Software Tools

Service: Systems EngineeringService: Requirements DevelopmentService: Verification and ValidationIndustry: FederalIndustry: GovernmentType: Aerospace Engineering+41 more