Hastreiter Industries


St. Louis CNC Machine Shop

Proudly Serving St. Louis, Missouri

Modern Machine Shop “Top Shop Winner” (2018) Hastreiter Industries specializes in low, medium and high volume machining services and contract inspection services for a wide range of industries in St. Louis and all of Missouri, including  energy, electronics, prototyping, equipment & machinery, medical, defense and aerospace industries. 

St. Louis machine shops

Have you experienced missed deadlines, poor service, or unpredictable quality from another local St. Louis machine shop?

St. Louis. Home of The Gateway Arch, The Anheuser-Busch Brewery, hockey, beer and football. With storied sports franchises, to amazing museums, a number of the industries also call St. Louis home. Many of them rely on precision machining services to support their operations. This includes machining for the medical industry, St. Louis aerospace machining, medical device machining, machining industrial components, biotechnology, food and beverage manufacturing, heavy equipment machining and more. Hastreiter Industries can help you eliminate the frustrations that come with machine shops who make promises they can’t deliver. Our commitment is to make sure you don’t have to worry about your supply chain. Our machining services include

St. Louis Machining Services - Nationwide Delivery

A Few Local St. Louis Communities We Provide Machining Services For:



We’re proud to be a Wisconsin machine shop, providing a great option for companies in search of quality machining in St. Louis. We’re also proud of the awards and acknowledgement we’ve received from our industry. However, at the end of the day it’s about our customers. It’s important that they know and trust that Hastreiter Industries is a top quality machine shop who’s got their back. Hastreiter Industries ranks in the top 1.5% of machine shops based on dozens of performance metrics including:


Looking For Local St. Louis Machine Shops? Machine Shops in Missouri? Want a Better Option?

State of the Art 42,000 Square Foot Machine Shop

Our spacious CNC machine shop is equipped with Cutting Edge CNC machining including 5 axis milling, 4 axis turning machines as well as 3D printing capabilities. It was renovated from the ground up in 2019 with efficiency in mind.  From physical machine placement, floor organization/storage solutions, tooling and coolant usage, processes, documentation to our floor management system. Most importantly, we believe in our people and are blessed with the finest machining talent and problem solvers in our industry.

Hastreiter Industries invests heavily in being a leader in both machining capabilities and capacity. We also love a great challenge. If you’re in St. Louis, or elsewhere in Missouri and have a challenging part, or material requirement for your machining project we’d love to hear from you. We are able to machine most metals and plastics including titanium, Delrin, PEEK, exotic alloys and tool steels. Looking for high volume machining? We have the technology (including Live Tooling, 5 axis machining, 3+2 machining, lights out machining, in-house parts inspection, etc.) as well as the manpower (we run multiple shifts) and processes to ensure timely delivery of your high volume machining project. 

Whether you’re in search of a quality St. Louis CNC machine shop, Chesterfield machine shops, machine shops in St. Peters, or another location in St. Louis County, Hastreiter is here to provide a fantastic alternative for your local CNC machining needs in Missouri. 

St. Louis CNC milling


Need St. Louis CNC milling services? We provide 3-5 Axis CNC Milling as tight as +/- 0.0005” on anything from Aluminum to Heat Resistant Super Alloys. Complex 5-axis machined parts up to 20 inches in diameter. 3 Axis machined parts up to 40x20x20 inches in size. Small, medium and high volume production.


CNC Turning Services in St. Louis? We have a broad range of CNC turning capabilities. We can turn parts up to 9 inches in diameter and as small as 0.08 inches. 2-4 Axis CNC Turning as tight as +/- 0.0001” on anything from Aluminum to Heat Resistant Super Alloys.

Aerospace machining St. Louis
Precision parts machining St. Louis


Quality St. Louis machine shops need to have quality parts inspection equipment and the experience to deliver precise machined parts. Our in-house parts inspection capabilities means added efficiency. NIST Trace-able, Metrology Lab with state-of-the-art, scanning probe CMMs, camera inspection system and more. Our quality department is capable of handling even the most complex parts.


Are you in need of parts design or prototyping assistance? We can handle your models confidentially in Solidworks or Inventor for the purpose of manufacturing or supporting your engineers with DFM (Design for Manufacturability). Our 3D printing technology is ideal for both prototypes and end-use production parts. 

Machine shop St. Louis

Your One Stop St. Louis Machine Shop

Have special requirements for your machined parts needs in the St. Louis area of Missouri? With a single purchase order, we can handle your machining project from start to finish. This includes any secondary processes you may be needing to provide even tighter controls over dimensional tolerances and surface finishes. A few examples include: Annealing, anodizing, plating, powder-coating, brazing, deburring, painting, laser marking, CNC grinding, fabricating, welding, and even light assembly. 

Industries Served

The Missouri area is home to a diverse range of industries. We have experience providing machining services for a wide variety of industries.  A few include: 

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Helping Your Bottom Line

In building our machining business we knew it was of utmost importance to address actual challenges businesses face with machine shops. So we asked. And asked again. Overwhelmingly, these were (and still are) at the top of the list. When you work with Hastreiter the first thing you’ll notice is our commitment to YOUR needs. NOT OURS. If you’re looking to improve any of these areas, let us show you how we can help. 

Peoria CNC shops


We’re nimble and can react to tight deadlines. In fact, we have a 96.7% on-time delivery record*. Typical lead time: 2-6 weeks. One day lead time feasible via hot/rush job or stocking. (*2016-2020)


With our quality processes, procedures, machining equipment and talent we’ll help move from non-conformance to perfection. 99.74% of jobs with Hastreiter have zero machined parts with nonconformance* (*2016-2020).


Elite machining talent paired with cutting-edge CNC equipment means predictable results and high efficiency. We’re built around efficiency, and that means a better bottom line for you.


1 in 10 deliveries are late from average machine shops. Not here. We’re laser-focused on exceeding expectations. While no one’s perfect, we strive to be. In fact, our on-time delivery is among the highest in our industry.

We believe in providing you a worry free supply chain through transparency and production reliability. Who else publishes their statistics?
ISO 9001:2015 Certified | ITAR Registered | JCP (DD Form 2345) Certified

Have a Question or Need Pricing For Your Machining Project?

Reach Out To Our Machining Experts Today!

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What People Say About Hastreiter Industries


Seen in the Media:
Local machining company
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Wisconsin machine shops
Aerospace machining company
Best machine shop St. Louis
Years In Business
Precision machining St. Louis
Of Jobs Have Zero Nonconformance

* 4 year average (2016-2020)



CNC machine shops St. Louis Missouri
High volume machining St. Louis
Square Foot Facility
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On-Time Delivery Record*

* 4 year average (2016-2020)

Charitable Giving

We are blessed to be able to give back to our community, both financially, through our non-profit Shiloh Bound, and through mentorship programs. Hastreiter donates 50% of net profits to charitable causes, and our individual employees play a part in choosing where this money goes. 

"We strive to be in a position where we are the most reliable link in our customer's supply chain, assuring them of a worry-free supply chain"
Aerospace machined parts company
Ken Hastreiter, President and Kylan Hastreiter, Vice President