Welcome to Innkeeper

turn-key product manufacturing & testing solutions.

Let’s find the appropriate cost-effective solution regardless if you need retrofits, customized control software or equipment with expertise in durability and fatigue testing.

Take Control

Are you getting the best value from your current testing systems? Contact Innkeeper for more information regarding our configurable test systems

What We Do

Innkeeper provides Tools for Product Durability, Fatigue, Strength and Characterization Laboratories

About Us

Who We Are

Innkeeper LLC, a leading manufacturer of custom engineered test equipment, stands at the intersection of machine control and data acquisition for fatigue, strength, and durability testing. Founded in 2006 by Kevin Kretshmann, Innkeeper is dedicated to delivering top-notch solutions including machine design, control retrofit upgrades, and standardized test control systems. Our name may be unique, but our commitment to customer-centric service and support is what truly sets us apart.

We Are

  • Builders

  • Configurators

  • Testing Mixologists
  • Integrators

  • NextGenDIY

Industries We Serve

Key Markets & Outputs

Successful product validation includes physical testing methods. Innkeepers products support the physical testing processes of Mechanical Failure, Function failure and Quality Confirmation. We are not limited to the vehicle and aero markets. Using our adaptable design, there is a broad spectrum of test methodologies that can be applied across many types of sub-assemblies, component and finished goods.

  • Aerospace
  • BioMedical
  • Electronics
  • Marine
  • Automotive
  • Rail Systems
What We Do

Innkeeper In Action

We integrate controls, motion and data acquisition. The finished product is well balanced, providing a cost effective platform to solve today’s testing issues and can be adapted for future changes in sensors, actuators and test cycles. When necessary, we build the physical or software interfaces to help our customers get the job done.

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Why Choose Us

Customer Focused

We know your pain… product and component testing requirements rarely fit an exact description. Customer specifications are a moving target. At Innkeeper, we support your individual needs through hardware and software that is adaptable to meet performance requirements. You will benefit from responsive response, training services and remote support such as TeamViewer. We excel at providing the tools you need to perform and report product test results.


Our test platform is InnControl, a modular control and data acquisition platform that allows the user to configure, calibrate, program and execute reliable test sequences. Whether you need sequential functionality or closed loop control, we can help you build a system to fit your purpose including:

  1. Lease to own / piloting (on selected systems)
  2. Test kits with a DIY focus
  3. Standardized products such as AXIS
  4. Fully customized multi-channel controls
  5. Interfaces such as CAN/LIN, PLC, National InstrumentsTM


The bottom line is; practical product test and validation tools that are fit to purpose. Whether you test to failure or test to confirm product life, Innkeeper provides options to retrofit existing equipment or build new systems.  Let us know what you need, we would appreciate the chance to build something for you.

Contact Us

How Can We Help You?

We welcome your questions, comments, and suggestions. Whether you’re seeking information about our products, services, or just want to connect, our team is ready to assist.

Contact Details:
Phone: (734) 743-1707
Email: info@innkeeperllc.com
Address: 4902 Dewitt Rd. Suite 104, Canton, Michigan 48188

Hours of Operation:
Mon – Fri      8:00 am – 4:30 pm
Sat – Sun      Closed


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