Mason West

What Mason West does

Mason West, Inc. is a Placentia, California-based sales and engineering company founded in 1973 that supplies engineered seismic restraint systems, vibration isolation products, acoustical noise control solutions, and flexible pipe connections to mechanical, electrical, plumbing, and fire protection (MEPF) contractors and design consultants. The company serves customers across California, Nevada, and Hawaii through four California offices (Placentia HQ, San Diego, Livermore/San Francisco, and El Dorado Hills/Sacramento) and operates as both a regional distributor and a value-added engineering services provider. Mason West is a subsidiary of Mason Industries, the parent company and global manufacturer of vibration control products, and operates as the exclusive or core Western U.S. channel for five additional manufacturers: Mercer Rubber Co., Metal-Fab Inc., Nexus Valve, Rovanco Piping Systems, and Gripple (platinum distributor).

The company combines product distribution with in-house design and engineering services delivered through sister company AJ Engineering, including seismic bracing, equipment anchorage, steel support, thermal pipe stress analysis, pipe expansion joint design, vibration isolation, sound isolation, riser design, and 3D seismic brace coordination. Mason West was the first company to achieve an OSHPD (Office of Statewide Health Planning and Development) OPM pre-approval in December 2013 that fully addresses MEPF distribution systems, providing a regulatory advantage in California hospital construction. Vibration isolation systems are stated to limit up to 99.99% of vibration energy, and the firm has delivered seismic restraint solutions for marquee projects including Disney Concert Hall, SOFI Stadium, 49ers Stadium, Apple campuses, Google, LAX, Cedars Sinai, Kaiser Permanente, UCLA, Boeing, Netflix, and Universal Studios.

Revenue is generated through two streams: one-time engineered product sales across its distributed brand portfolio, and professional engineering services through AJ Engineering. The go-to-market is sales-led and relationship-driven, with experienced sales staff embedded at each regional office working directly with MEPF contractors and design consultants during project conceptual, design, and construction stages. Mason West is privately held, has no public listing or disclosed institutional investors beyond a 2020 Gladstone Investment transaction, and has not disclosed revenue figures.

Name

Mason West

Legal name

Mason West, Inc.

Website

https://masonwest.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

Mason West is a California-based engineering distributor and seismic design services firm, founded in 1973, that supplies vibration isolation, seismic restraint, noise control, and flexible connection products to MEPF contractors across the Western United States.

Ownership category

akta.pro rank

Product category

MEPF Engineering Services

NAICS

Rubber and Plastics Hoses and Belting Manufacturing (326220)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Masonry Accessories & Reinforcement (Lintels, Ties, Mesh, Rebar) (IMADABAK)

akta.pro secondary industry

Subfloor Systems & Underlayment (Backer board, Moisture barriers, Acoustic mats) (IMADAJAK)

Keywords

• Seismic restraint systems
• Vibration isolation products
• Noise control solutions
• Flexible pipe connections
• MEPF engineering services

Headquarters

HQ city

Placentia

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Engineered Product Sales: Sales of seismic restraint systems, vibration isolation products, noise control products, and flexible connection systems. Products include items from Mason Industries, Mercer Rubber Co., Metal-Fab Inc., Nexus Valve, Rovanco Piping Systems, and Gripple.
2. Design & Engineering Services: Custom engineering design services through sister company AJ Engineering, including seismic bracing, equipment anchorage, steel support, thermal pipe stress analysis, pipe design at expansion joints, vibration isolation, sound isolation, and riser design.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Mason West is a sales/engineering company that distributes engineered seismic restraint systems, vibration isolation products, noise control solutions, and flexible pipe connections to mechanical, electrical, plumbing, and fire protection (MEPF) contractors and consultants in California, Nevada, and Hawaii. The company complements its product distribution with in-house design and engineering services delivered through its sister company AJ Engineering, providing custom seismic bracing, vibration isolation, acoustical design, and 3D seismic brace coordination.

Product overview

Mason West is a sales/engineering company that operates as both a distributor of third-party manufactured products and a provider of engineering services. The company distributes physical products from five main brand partners: Mason Industries (noise, vibration, and seismic control products including mountings, hangers, and flexible connectors), Mercer Rubber Co. (rubber expansion joints and flexible connectors), Metal-Fab Inc. (commercial chimneys and vents), Nexus Valve (hydronic valve packages and components), and Rovanco Piping Systems (pre-fabricated pre-insulated piping systems). Additionally, Mason West serves as a platinum distributor of Gripple gravity support products. The company complements its product distribution with five core engineering services: Seismic Restraint Systems, Vibration Isolation, Noise Control, Flexible Connections, and Design & Engineering Services provided through its in-house sister company AJ Engineering. The integrated product+service model enables the company to provide complete, code-compliant seismic design for mechanical, electrical, plumbing, and fire protection (MEPF) systems.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Up to 99.99% vibration energy isolation efficiency with appropriate system design
• +1 more outcomes

Named customers14 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and major.

• AJ EngineeringcoreStrategic or Co-development PartnerSister company providing in-house design and engineering services including seismic bracing, equipment anchorage, steel support, thermal pipe stress analysis, vibration isolation, sound isolation, and riser design. Mason West works closely with AJ Engineering to ensure optimal performance of customer systems.
• Mason IndustriescoreTechnology or IntegrationParent company and world leader in vibration control products. Mason West represents Mason Industries products including seismic mounts, spring mounts, hangers, bases, seismic snubbers, building isolation, air springs, flexible connectors, and floating floor systems. Products specified by consultants and architects worldwide.
• Mercer Rubber Co.coreTechnology or IntegrationAcquired by Mason Industries in 1982, specializing in rubber expansion joints for piping and duct work since the 1930s. Products include sleeve-type expansion joints, Teflon-lined joints, heavy-duty series, and flexible connectors for industrial applications.
• Metal-Fab Inc.coreTechnology or IntegrationProvider of commercial chimneys, vents, special vents for condensing appliances, fume exhausts, engine exhausts, and factory-built kitchen ventilation systems. Offers complete product line designed for changing industry needs.
• Nexus ValvecoreTechnology or IntegrationEstablished in 1994, providing highest quality hydronic system components at reasonable costs. Offers automatic flow control valves, coil paks, hose paks, unions, isolation valves, temperature control valves, and accessories for HVAC industry.
• Rovanco Piping SystemscoreTechnology or IntegrationManufacturer of pre-fabricated, pre-insulated pipe and piping systems founded in 1969. Products include urethan foam pre-insulated pipe, DEF piping systems, prefabricated manholes, and leak detection systems. Offered from San Francisco and Sacramento offices.
• GripplemajorChannel Partner/ Reseller/ DistributorPlatinum distributor of Gripple gravity support products. Gripple products complement Mason West's seismic restraint offerings for MEPF system support applications.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Mason Industries: Parent company of Mason West and the global technology leader in vibration control, seismic restraint, and noise control products. Comparable as the principal brand that Mason West distributes, and as a broader manufacturer covering the full portfolio of products Mason West applies to MEPF systems across the US and worldwide.
• Hilti: Global manufacturer of construction products and engineering services including anchors, firestop systems, and seismic bracing hardware. Comparable as a broad incumbent serving MEPF and structural contractors with seismic and modular support solutions that overlap with Mason West's seismic bracing and Gripple distribution offerings.

Direct peers

• Kinetics Noise Control: Manufacturer and supplier of vibration isolation, noise control, and seismic restraint products for MEPF and building applications. Directly competes with Mason West's Mason Industries, Mercer Rubber, and Gripple product lines for the same contractor and consultant customers specifying floating floors, isolated walls, isolated ceilings, and equipment isolation in commercial, healthcare, and entertainment facilities.
• Taylor Devices: Manufacturer of shock absorbers, seismic dampers, and energy-dissipation devices used in buildings, bridges, and critical infrastructure to protect against seismic and blast events. Comparable as a specialized seismic-protection vendor serving architects, structural engineers, and contractors on the same high-value California infrastructure and stadium projects as Mason West.
• International Seismic Application Technology (ISAT): Manufacturer of seismic bracing hardware, pipe, duct, conduit, and cable tray bracing systems, plus OSHPD-approved pre-approvals for healthcare construction. Directly competes with Mason West for the OSHPD OPM hospital market and MEPF contractors needing code-compliant seismic restraint in California hospitals and seismic-regulated facilities.
• Industrial Acoustics Company (IAC): Global manufacturer of noise control and acoustic products including acoustic enclosures, walls, doors, ceilings, and isolation chambers. Comparable to Mason West's noise control practice area and to the type of architect/contractor specifying floating floor, isolated wall, and suspended ceiling assemblies in commercial and industrial buildings.

Regional players

• California Dynamics Corporation: California-based manufacturer of vibration isolation and seismic restraint products for HVAC, piping, and equipment applications. Directly comparable as a regional competitor in the same California MEPF market as Mason West, addressing many of the same contractor and consultant customers with similar seismic and vibration isolation product lines.

Emerging players

• Acoustical Solutions: Supplier of acoustical and noise-control products and services including sound-absorbing panels, isolation products, and architectural acoustics. Comparable as a vendor in the noise control and vibration management space, competing for architect and contractor specifications that Mason West's noise control group also pursues for healthcare, entertainment, and educational facilities.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights5 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Mason West