AJ Engineering

What AJ Engineering does

AJ Engineering is a Placentia, California-based seismic structural engineering firm specializing in the design of mechanical, electrical, plumbing, and fire protection (MEPF) equipment and distribution systems for earthquake-prone West Coast construction. Its five core service lines — equipment anchorage design, seismic brace design, riser supports, thermal pipe design and analysis (with ASME B31 compliance reporting), and seismic-compliant steel design — are delivered as project-based professional services to West Coast contractors, engineering firms, building owners, and Fortune 500 owners of healthcare, entertainment, transportation, technology, and government facilities. The firm is the exclusive engineering partner of Mason West, Inc., the largest California supplier of vibration control and seismic restraint products, and co-developed the OSHPD OPM-0043-13 documentation governing MEPF seismic bracing in California hospitals, positioning the firm as a reference point for hospital seismic compliance.

The business operates as a B2B enterprise field sales motion: project-based, quote-based engagements initiated through website forms, phone, and email, with geographic coverage from four California offices (Placentia HQ, Los Angeles, Bay Area, San Diego) and stated reach into Oregon and Washington. Headcount of 11–50 employees includes 20+ in-house engineers, of whom 10 are specifically licensed for equipment anchorage design. The firm is privately held with no disclosed institutional investors, no public listing, and no disclosed revenue; a 2020 relationship with Gladstone Investment is the only capital-markets signal in the data. Marquee project references include Disney, Kaiser Permanente, Cedars Sinai, UCSF, UCLA, Intel, Qualcomm, YouTube HQ, LAX, San Diego International Airport, Universal Studios, Warner Brothers, and Paramount Pictures.

There is no public revenue, no app or API product, no disclosed AI/ML capability, and no patents or trademarks in the input data. Customer concentration is moderate, distributed across at least five verticals with several repeat engagements. The competitive position is anchored on regulatory authorship (OPM-0043-13), specialty talent credentials, and the Mason West product ecosystem lock-in rather than on technology platform differentiation.

Name

AJ Engineering

Legal name

AJ Engineering

Website

https://www.ajenginc.com/

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

AJ Engineering is a Placentia, California-based seismic structural engineering firm providing specialized MEPF equipment anchorage, seismic bracing, riser support, thermal pipe, and steel design services to West Coast contractors, engineering firms, healthcare systems, and Fortune 500 owners.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Engineering Services (541330), Engineering Services (54133)

SIC

Services-Engineering Services (8711)

akta.pro industry

PRIMARYBPAHAIAI

Systems Engineering & Technical Program Management

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Engineering & Technical Consulting

SECONDARYEUADAKAG

Engineering design services (line design, substation design, civil/structural)

Energy, Utilities & Environment/Electric Transmission & Distribution (T&D)/T&D Construction, Engineering & EPC Services

Keywords

• Seismic structural engineering
• Equipment anchorage design
• Seismic bracing design
• Thermal pipe analysis
• Riser support design

Headquarters

HQ city

Placentia

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Design Services: Professional engineering services for seismic structural design, equipment anchorage, seismic bracing, riser supports, and thermal pipe analysis. Billed as project-based professional services for contractors and engineers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

AJ Engineering is a seismic structural engineering firm that designs earthquake-safe anchorage, bracing, riser support, thermal pipe, and steel solutions for mechanical, electrical, plumbing, and fire protection (MEPF) equipment and distribution systems in commercial, institutional, and healthcare buildings. Services are delivered as project-based professional engineering engagements primarily for West Coast contractors, engineering firms, and building owners. The firm holds exclusive engineering partnership status with Mason West, Inc. and co-developed OSHPD's OPM-0043-13 documentation for California hospital seismic bracing.

Product overview

AJ Engineering is a seismic structural engineering firm providing specialized engineering design services for mechanical, electrical, plumbing, and fire protection (MEPF) systems. The company operates as a single unified service offering centered on seismic protection, comprising five core design services: Equipment Anchorage Design (vibration isolation and anchorage for equipment), Seismic Brace Design (bracing for MEPF distribution systems), Riser Supports (vertical riser support for multi-story buildings), Thermal Pipe Design & Analysis (thermal stress analysis for piping systems), and Steel Design (seismic-compliant structural steel design). These services work together to ensure building MEPF systems withstand seismic activity, with all designs meeting applicable state building codes and standards including ASME B31 compliance for pipe systems.

Differentiator

Problem solved

Functional benefit

Products and services

• Equipment Anchorage Design Specialized equipment anchorage and vibration isolation design for mechanical, electrical, plumbing, and fire protection equipment including pumps, tanks, custom air handling units, and cooling towers. Designs meet current state-specific building codes and include calculations for city, county, and state planning offices, with configurations covering direct floor anchorage, suspended systems, and vibration isolated setups.
• Seismic Brace Design Seismic bracing design for suspended piping, duct work, and electrical systems, including MEPF distribution systems. AJ Engineering helped develop the OPM-0043-13 document for California OSHPD hospital projects in partnership with Mason West, Inc. Includes 3D CAD/BIM coordination for commercial building seismic bracing plans.
• Riser Supports Earthquake-safe riser support design for multi-story MEP systems, including structural steel support for riser shafts with consideration for floor drift, gravity loads, seismic loads, and thermal expansion. Intended to stabilize vertical risers in multi-story buildings.
• Thermal Pipe Design & Analysis Thermal pipe stress analysis and support design that withstands gravitational, thermal, pressure, and seismic forces. Every design includes a final report demonstrating ASME B31 compliance, including support, guide, anchor loads, and pipe translations, and redesigns pipes to handle expansion and contraction from temperature changes.
• Steel Design Seismic-compliant steel design for contractors and engineers, including platform designs for plumbing, mechanical, electrical, and architectural non-structural components.

Quantifiable outcome

• Every thermal pipe design includes ASME B31 compliance report with support, guide, anchor loads, and pipe translations

Named customers22 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Mason West, Inc.coreStrategic or Co-development PartnerAJ Engineering is the exclusive engineer for Mason West, Inc., the largest supplier of vibration control and seismic restraint products in California. This partnership enabled the development of OSHPD's OPM-0043-13 documentation for MEPF seismic bracing in California hospitals. Mason West provides seismic restraint products while AJ Engineering provides the engineering design expertise.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• KPFF Consulting Engineers: Large national structural and civil engineering firm with substantial California presence and seismic practice. Overlaps with AJ Engineering on seismic design for West Coast buildings but at much greater scale and broader service portfolio.
• Walter P Moore: National structural and civil engineering firm with significant seismic design practice including healthcare and large commercial projects. Overlaps with AJ Engineering on seismic structural design for major institutional clients.
• Simpson Gumpertz & Heger (SGH): National structural, civil, and building-envelope engineering consultancy with strong seismic and nonstructural-component expertise. Comparable technically on MEPF and nonstructural seismic design, though broader in scope and geography.
• AECOM: Global multi-discipline engineering firm with structural and seismic practices serving California healthcare, aviation, and entertainment infrastructure. Competes for the same large West Coast projects AJ Engineering serves, often as prime consultant.

Direct peers

• Degenkolb Engineers: San Francisco-based structural engineering firm with a longstanding seismic design specialty serving West Coast healthcare, education, and commercial clients. Directly comparable in mission (seismic structural engineering), geography (West Coast), and client verticals (California hospitals, universities).
• Saiful Bouquet Structural Engineers: Southern California structural engineering firm specializing in seismic design of healthcare, education, and commercial buildings. Directly comparable on West Coast seismic structural engineering for OSHPD-regulated hospital projects.
• Forell/Elsesser Engineers: San Francisco structural engineering firm with deep seismic base-isolation and retrofit expertise serving West Coast healthcare, education, and civic clients. Comparable in seismic structural engineering focus and California hospital exposure.
• Martin/Martin Consulting Engineers: West Coast structural engineering firm with a dedicated seismic practice covering building structures and nonstructural components. Comparable in seismic consulting for healthcare, aviation, and entertainment projects.
• Tipping Structural Engineers: Berkeley-based structural engineering consultancy focused on seismic design, performance-based design, and seismic retrofit of buildings. Overlaps directly with AJ Engineering on seismic engineering services for West Coast buildings and infrastructure.

Others

• Mason West, Inc. Largest California supplier of vibration control and seismic restraint products and AJ Engineering's exclusive engineering partner. Not a direct competitor, but the closest ecosystem partner whose installed base drives a material share of AJ Engineering's referrals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors1 record

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 AJ Engineering