AT Engineering Services is a California consulting engineering practice providing mechanical, process, oil and gas, energy, petrochemical, chemical, pharmaceutical, industrial, and power engineering services. AT Engineering Services has operated since 1993 and supports clients with technical engineering design and consulting.
WebsitePhone1 officeFounded 1993Updated Jun 2026
Service detail: Mechanical and Plumbing Engineering
Service: Mechanical and Plumbing EngineeringService: Process EngineeringService: Heat Transfer and Piping DesignIndustry: Oil & GasIndustry: PetrochemicalType: Mechanical Engineering+10 more
The right people. The right place. The right time.
WebsitePhone18 offices1 credentialsSize Estimate: 2,700 employeesUpdated Jun 2026
Service detail: Engineering Design
Service: Engineering DesignService: Conceptual and Front End StudiesService: Capital Projects EngineeringIndustry: AgricultureIndustry: ChemicalsType: EPC+27 more
Nebula Safety & Environmental is a process safety and environmental consulting firm headquartered in Irvine, California, with offices in Riverside, California, Columbus, Ohio, Post Falls, Idaho, and Henderson, Nevada. Founded by a team with over 40 years of combined experience, Nebula specializes in OSHA PSM and EPA RMP compliance, process hazard analysis facilitation, dust hazard analysis, hazard mitigation plan preparation, and environmental and health, safety, and environment consulting for pharmaceutical, aerospace, chemical, oil and gas, government, and manufacturing clients nationwide.
Website5 officesUpdated Jun 2026
Service detail: RMP/PSM Services
Service: RMP/PSM ServicesService: PSM/RMP Program DevelopmentService: Process Safety Compliance AuditsIndustry: PharmaceuticalIndustry: AerospaceType: Process Safety Engineering+13 more
Single-source solution to help you save time and money
WebsitePhone3 offices1 leaders22 credentialsUpdated Jun 2026
Service detail: Process and Industrial Piping
Service: Process and Industrial PipingService: Process and utility pipingService: Shop fabrication - pipingIndustry: IndustrialIndustry: ChemicalsType: Mechanical Engineering+32 more
Website5 offices3 publicationsFounded 2006Size Estimate: 500 employeesUpdated Jun 2026
Service detail: Data-Driven Reliability Programs
Service: Data-Driven Reliability ProgramsService: Reliability Data CollectionService: Reliability Data OrganizationIndustry: Oil & GasIndustry: PetrochemicalType: Process Safety Engineering+18 more
WebsitePhone1 office2 leaders5 credentialsFounded 1999Updated Jun 2026
Service detail: Tank Inspection
Service: Tank InspectionService: API 653 Storage Tank Inspection (External and Internal)Service: STI SP-001 External/InternalIndustry: Oil & GasIndustry: ChemicalsType: Materials Testing+13 more
Professional Chemical Engineering Design & Process Solutions
WebsitePhone1 office3 publicationsUpdated Jun 2026
Service detail: Chemical Process and Plant Design
Service: Chemical Process and Plant DesignService: Chemical Process DesignService: Biofuels Plant DesignIndustry: Biomass & BioenergyIndustry: ChemicalsType: Chemical Engineering+49 more
WebsitePhone3 offices6 projects2 leadersUpdated Jun 2026
Project: Packaging OT Network Backbone Upgrade
Service: Process EngineeringService: Mechanical Process EngineeringService: Piping & Utility Tie-InsIndustry: Food & BeverageIndustry: ChemicalsType: Process Engineering+39 more
WebsitePhone7 offices6 leadersSize Estimate: 50-99 employeesUpdated Jun 2026
Service detail: Air Quality Permitting
Service: Air Quality PermittingService: Air Quality Regulatory Compliance AnalysisService: Control Technology AnalysisIndustry: Oil & GasIndustry: PetrochemicalType: Environmental Engineering+25 more