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GPI Prototype is Now Part of Fathom

GPI Prototype

We’re excited to announce that GPI Prototyping and Manufacturing Services is now part of Fathom.


See Official Press Release / /
Click Here

Who Is GPI Prototype & Manufacturing Services?

GPI Prototype and Manufacturing Services has been providing Direct Metal Laser Sintering (DMLS), also known as Direct Metal Laser Melting (DMLM), services since 2008. As one of the first metal 3D printing service providers in the country.

GPI has been dedicated to DMLS/DMLM, producing metal prototypes and end-use parts with complex geometries not possible with traditional machining.

Learn more about DMLS or metal 3D printing quotes for your project.

Who Is Fathom? // Fathom is the largest privately held service provider for rapid prototyping and on-demand additive manufacturing in North America. We are driven to create a differentiated customer experience driven by speed, complexity & agility to provide the most unique and impactful on-demand manufacturing in the industry.

Fathom Offers //

  • 14 Manufacturing Production Methods

  • 6 Additive Manufacturing Technologies

  • Over 90 Industrial Grade / Large Format Additive Systems

  • A Combination Of Over 125 Mills, Lathes, Presses & 3D Printers

  • Domestic CNC

  • Urethane Casting

  • Domestic and International Injection Molding

  • Enhanced Model Finishing & Assembly

What Does The GPI Acquisition Mean For The Company?

With the recent acquisition of GPI Prototype & Manufacturing, Fathom has doubled its metal additive capacity creating a more encompassing DMLS solution for its customers.

DMLS materials to include //

  • Stainless Steel (PH1, GP1, 316L)

  • Cobalt Chrome (MP1)

  • Maraging Steel (MS1)

  • Aluminum (AlSi10Mg)

  • Nickel Alloy (IN718)

  • Titanium (Ti-64, ELI)

In addition, we are adding EDM capabilities, additional metallurgical analysis equipment and mechanical quality assurance – In-Process Quality Assurance (IPQA) activities.

Fathom holds ISO 9001 and AS9100 Rev D certifications and is ITAR registered.


GPI is now part of the largest privately held digital manufacturing service provider in North America.

What Does This Acquisition Mean For GPI Customers?

This acquisition will give GPI customers access to a vast amount of additional manufacturing capabilities focused on technical expertise, speed, agility and complexity. We have 13 years of advanced manufacturing experience in metal additive and are looking forward to working with you on your next project or answer any questions you may have about Fathom.

GPI customers will now have access to our in-house CNC machining, post-processing and finishing capabilities, you’ll find Fathom will fulfill your prototyping and manufacturing needs comprehensively.

With over 35 yeras of experience manufacturing, we have thousands of materials ranging from plastics to polymers to composites and metals. Click here to see Fathom’s service overview // Download Brochure

Have a prototype or manufacturing project?

Who Do I Contact For My DMLS/DMLM Needs That GPI Was Handling?

Here are the ways in which you can contact us //

More About Fathom //

With over 90 large-platform industrial grade 3D printing machines and its national footprint with over 200,000 square feet of manufacturing capacity across five facilities, Fathom seamlessly blends in-house capabilities across plastic and metal additive.

Fathom also delivers traditional manufacturing technologies that include CNC machining, injection molding and urethane casting. Fathom is sought after for continually making the complex simple for its customers.

Founded over 35 years ago, Fathom is at the forefront of the Industry 4.0 digital manufacturing revolution, serving clients in the technology, defense, aerospace, automotive and IOT sectors.


Fathom Works With //

Every day, companies from all industries trust us with low- to high-volume projects because of our award-winning expertise, speed and commitment to quality. From aesthetic models to functional prototypes to end-use parts on factory floors and store shelves, our experienced team can help you identify what technology and material make the most sense for your application type.


Comprehensive Capabilities for Rapid Manufacturing

At Fathom we offer a unique advantage of speed and agility-our experts help companies go from concept to prototype to manufacturing in ways not previously possible. 

90+ Machines  
SLS / / Two-day  SLA / / Next-day 
FDM / / Next-day DMLS / / Three-day 
PolyJet / / Same-day MJF / / Two-day

Get A Quote

30 Second Quotes
Prototype Tool / / As soon as 10 days
10K Parts / / 10 days
Production Tool / / As soon as 3 weeks

Get A Quote

3 & 5 Axis Milling & Turning
(Plastics, Composites and Metals)

Tolerance Accuracy Range
from +/-0.001″ to 0.005″

Get A Quote

Injection Molding Adjacent
without High Costs of Metal Tools

Most Commonly Used for High-Volume
Prototyping & Bridge to Production

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Finishing, Production Painting and Color Matching

Assembling, Including Embedded Electronic
Components, Threaded Inserts, and More

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CAD, DFAM and DFM Services

Apply Methods to Increase Speed
and Decrease Total Cost

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Highly Trained Staff / / Full-Time & Part-Time
Support as Short-Term & Long-Term Strategy

Decrease Downtime with Customizable
Staffing Accelerates Implementation

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Let’s get started.

Fathom is driven by advanced technologies and methods that enhance and accelerate today’s product development and production processes.