Refinery operations at sunset
Partners Specialties, Inc.

Industrial solutions
without limits.

PRESSURE VESSELS • FIXED EQUIPMENT • SPECIALTY ALLOYS • FIELD EXECUTION • INDUSTRIAL FABRICATION • EMERGENCY RESPONSE

Trusted by leaders in energy, aerospace, manufacturing, semiconductor, data center, and industrial markets. PSI delivers code-certified fabrication, specialty alloy welding, field services, and emergency response solutions for critical assets nationwide.

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ASME U·S

Code Stamps

NBIC R

Repair Authority

0.77

EMR · 2026

24 / 7

Emergency Response

Specialty Service Lines

From fabrication to
field execution.

Delivering ASME-certified fabrication, specialty alloy expertise, field execution, and rapid response services for the industry's most demanding projects.

All services

Capabilities Matrix

The technical
depth chart.

Code authority, weld processes, alloys, and NDE — the things that decide whether the job stamps out and the unit comes back up.

Specs / Stamps / Standards

01 · Matrix

Certifications & Code Compliance

  • ASME U Stamp — Pressure Vessels
  • ASME S Stamp — Power Boilers
  • NBIC R Stamp — Repairs & Alterations
  • WPS/PQR & Welder Qualification Program
  • Documented Quality Management System

02 · Matrix

Welding & Fabrication Expertise

  • GTAW · SMAW · GMAW · FCAW
  • Orbital & Automated Welding
  • Tube-to-Tubesheet Welding
  • Weld Overlay & Cladding
  • Precision Fabrication & Assembly
  • Pre/Post Weld Heat Treatment

03 · Matrix

Specialty Alloys & Materials

  • Carbon & Low-Alloy Steels
  • Chrome-Moly (1¼Cr–9Cr)
  • Stainless 304 · 316 · 321 · 347
  • Duplex & Super Duplex
  • Inconel · Monel · Hastelloy
  • Titanium & Zirconium
  • Reactive & Exotic Alloys
  • Dissimilar Metal Welding

04 · Matrix

Quality, Testing & Documentation

  • RT · UT · PT · MT · VT
  • Phased Array UT (PAUT)
  • Positive Material Identification (PMI)
  • Hydrostatic & Pneumatic Testing
  • Complete Turnover Documentation
  • Material Traceability Programs

12

Service Lines

3

Operating Bases

3

Code Stamps

24/7

Mobilization

0.77

EMR · 2026

Why PSI

Bigger capability.
Single-source accountability.

PSI is not just another contractor. We combine engineering expertise, ASME and NBIC code authority, field execution, fabrication, portable machining, and rotating equipment service under one organization — so the work moves and the accountability never gets handed off.

Safety

EMR 0.77 in 2026. Stop-work authority for every craftsperson on site.

Engineering

ASME and NBIC code expertise integrated with field execution.

Single Source

Eight specialty service lines under one accountable organization.

Speed

24/7 emergency mobilization nationwide.

Precision

Controlled shop fabrication with hold-point inspection on every job.

Accountability

One project manager. One safety standard. Documented turnover.

PSI equipment on-site at SpaceX Starbase, Boca Chica, Texas
In The Field

Trusted at the
highest level.

PSI equipment and tooling on-site at SpaceX Starbase, Boca Chica, Texas — supporting critical infrastructure for the future of aerospace.

Captured during Booster 4 lift operations on the NASA Spaceflight live feed. Our portable machining and field service capabilities are trusted across energy, aerospace, and heavy industrial sectors nationwide.

Project Portfolio

Work that earns trust.

A proven track record of fabrication excellence, exchanger expertise, furnace repairs, and field execution.

View all projects
Exchanger Bundle Testing & Repairs

Heat Exchangers

Exchanger Bundle Testing & Repairs

Boiler Tube Bundle — Marked for Repair

Boilers & Furnaces

Boiler Tube Bundle — Marked for Repair

Pipe Flange Welding — Field Operation

Specialty Welding

Pipe Flange Welding — Field Operation

Column Piping — Shop Lift

Pipe Fabrication

Column Piping — Shop Lift

Coil Piping Repair in Reactor

Vessels & Tanks

Coil Piping Repair in Reactor

On-Site Operations

Field Work

On-Site Operations

Exchanger Retube

Heat Exchangers

Exchanger Retube

Boiler Waterwall Interior

Boilers & Furnaces

Boiler Waterwall Interior

Industries Served

Built for the toughest environments.

See all industries

Refining

Petrochemical

LNG & Midstream

Chemical Processing

Power Generation

Industrial Manufacturing

Terminals

Pipelines

Careers

Build the work
that keeps the INDUSTRY running.

We hire experienced welders, fitters, machinists, millwrights, and project leaders who want to do the kind of work they can point to twenty years from now. Competitive pay, real benefits, real safety culture.

Ready when you are

Plan your next turnaround
with a partner that delivers.

From scope to execution, PSI mobilizes skilled crews and specialized equipment to keep your facility safe, online, and on schedule.

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