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Meet The Team

Aaron Keith
Estimator Program Manager
Alejandro Ceja
Shop Manager
Edgar Navarro
Machining Lead"
Jaime Ramirez
Plant Manager
Jason Thacker
Production Manager
Keaton Savage
Program Manager Estimator
Ricardo Madrigal
Production Control
Rich Strever
Engineering Planning
Roberto Cunarro
Estimator Program Manager
Ronald DaVella
Skip Thomas
Engineering Planning
Teresa Sabol
Estimator Program Manager

We attribute our success to being grounded in the Christian principles of humility, honesty, integrity, respect, kindness and a sense of social responsibility. We create eternal value by striving to honor God in all we do. This is reflected in how we conduct our business and how we care for our employees – our greatest asset.

We have over:

  • 145 years of combined experience in welding
  • 200 years of combined experience in fabrication
  • 100 years of combined experience in design
  • 200 years of combined experience in machining
  • 130 years of combined experience in inspection
  • 108 years of combined experience in quality control
  • 40 years of combined experience in CAD/CAM programming utilizing Surfcam and Mastercam.

As noted above Pen Manufacturing Los Angeles has an extensive array of in-house machining equipment, including:

CNC Machinery at our Anaheim Jobshop:

  • Hurco VMX50 Vertical Mill with 4th Axis capability and 50" by 26" by 24" envelope
  • Hurco VMX42 Vertical Mill with 4th Axis capability and 42" by 24" by 24" envelope
  • Hurco VM3 Vertical Mill with an envelope of 50" by 18" by 18"
  • Hurco TM10 Lathe with a 10" chuck
  • Whacheon Lathe with 12" chuck
  • Femco Durga Lathe with 8" chuck

Welding Equipment: 

  • 6 MIG and TIG Welding Stations
  • Cobramatic Aluminum "Push-Pull" Station

Our Anaheim Manual Machine Shop Equipment:

  • Lathe 15" by 120"
  • Lathe 12" by 80"
  • Vertical Turret Lathe with 50" of swing, and a capacity of 54" round by 24" tall
  • 4 Knee Mills
  • Automatic Cut-off/Band Saw
  • 90 Ton Ironworker
  • 1, HYD-MECH Miter saw

Miscellaneous Support Equipment: including forklifts, a 3-ton bridge crane, and hand grinders.

Pen Manufacturing Los Angeles prides itself in running a flexible shop, one that can quickly and efficiently meet the needs of its customers. Short-run and prototype components can sometimes be completed in as little as 2-3 days, with a typical turnaround time for scheduled work being finished in 4-6 weeks, depending on the complexity of the project and any outside processing that may be required. Production quantities from 10 to 5000 can be handled in-house, depending on the size of the component. Along with the machining, welding, and metal fabrication services, additional in-house capabilities at Pen Manufacturing include plumbing, hydraulic assembly, electrical wiring, glass-beading, and delivery to the customer’s site. As part of our commitment to be your one-stop machining, welding, and fabrication source in Los Angeles, we have developed a group of dependable, reliable vendors that provide additional finishing services. These services include:

Sandblasting Special Nickel Plating
Heat Treating Sheet Metal
Roll Forming Punching & Forming
Hard Anodizing Centerless Grinding
Precision Laser Cutting Hard Chrome Plating
Blanchard Grinding Powder & Wet Painting

About Us - Learn More About Pen Manufacturing


About Us - Message from Pen Manufacturing


LADBS Certified Southern California Metal Fabricator & Machine Shop

Pen Manufacturing is now certified by The City of Los Angeles Department of Building and Safety (LADBS) recognizing proficiency with aluminum, stainless steel, carbon steel, high-strength steel, and others. You can trust Pen to have the expertise to take on public projects around LA and Southern California area. License number FB02883-0.

Pen Manufacturing provides these comprehensive services to customers that are looking for a complete “turn-key" solution. Contact the Pen Manufacturing team today for help in solving your unique manufacturing challenges.

Our Machine Shop service area includes many areas of greater Los Angeles including:

  • Fullerton
  • Santa Ana
  • Irvine
  • Yorba Linda
  • Newport Beach
  • Anaheim
  • Brea
  • Orange
  • San Diego
  • Los Angeles
  • Long Beach
  • Los Angeles County
  • Orange County
  • San Bernardino County
  • Riverside County
  • San Diego County


NAICS Code 332710 – Machine Shop

Pen Manufacturing is registered with the North American Industry Classification System (NAICS) under code 332710 – Machine Shop. As a full-service metal fabrication shop, we also have capabilities for the following NAICS codes:

  • 332999 – Other Miscellaneous Metal Product Manufacturing
  • 332312 – Fabricated Structural Steel
  • 332332 – Sheet Metal
  • 332313 – Plate Work Manufacturing
  • 333514 – Special Die and Tooling, Die Set, Jig, and Fixture Manufacturing
  • 344100 – Fabricated Structural Metal
  • 344199 – Fabricated Structural Metal
  • 34419901 – Building Components, Structural Steel

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