Creating reliable cables that will save you time and cost.

Welcome to Fourmost Technology

Fourmost is your manufacturing resource for cable assemblies. We have years of experience serving the oil & gas industry assembling custom cables including Measurement-While-Drilling (MWD) assemblies such as the battery, interconnect, gamma, and transorb pigtails. We can enable you by supplying you with MWD pigtails or any custom cables that will enhance your performance.

Utilizing our production, you can continue to focus on providing your services without the burden of maintaining your own in-house manufacturing capability and inventory. We are typically able to ship you a completed product within 24 hours. When you need our services again, we are just a phone call or message away. 


Fourmost can be involved a little or a lot … the choice is YOURS.


Is the cost of downtime and system failures affecting your field operations? We can help! We have assembled thousands of MWD pigtails with zero manufacturing defects to date. 

Custom Cable Production

Whether your project is a discrete component or an assembly, we can help you cross the finish line.

Reliability Engineering

We conduct reliability reviews of MWD systems. We can assist you in identifying opportunities to improve your system performance.

Expert Witness Program

We offer expert witness services to assist in data analysis and compilation related to third-party MWD equipment performance as it relates to reliability and safety.

Improve your system reliability

At Fourmost, we take pride in marrying top quality components with our highly skilled and meticulous soldering and manufacturing skills. This allows us to produce best-in-class wired assemblies for our clients.

Where required, we can also provide precision machined components, such as the MWD gamma and transorb housings, to complement our custom cable solutions. All wired assemblies  are tested multiple times prior to shipping to ensure optimum quality. We can typically ship common completed assemblies by air from inventory for delivery within 24 hours ARO to most North American locations.

Our custom cable technicians have decades of experience in manufacturing wired assemblies as well as resolving telecommunications and computer equipment issues. Fourmost has supplied thousands of wired assemblies, including both downhole and surface cable assemblies, with zero product defects. We can design additional features into existing systems and provide sustaining engineering for those systems as required.

Contact us today by giving us a call at (403) 705-0460 or sending us an email at We would be happy to address all of your questions and concerns!

Jay H

Latest Projects

Downhole MWD Pigtails

Fourmost has developed its own custom solutions for the transorb pigtail assembly used in the Tensor and Tolteq MWD tool systems. We have developed our own in-house printed circuit board (PCB) design and source the boards themselves within North America. Depending on your system requirements, we can customize your final PCB assembly with components for a variety of applications. Our unique potting technique combined with our own fixture yields a final product such as the transorb pigtail that facilitates ready visual inspection of both components and solder joints.

Surface Cable Assembly

Fourmost can assist in developing detailed and optimized custom design specifications for cables that connect downhole tools such as an MWD system to surface programming units. We procure, assemble, and performance test each cable before shipping them to their required destination. We can expedite subsequent orders by procuring long lead components for our in-house inventory.

mwd pigtail assembly for oil drilling

Your next Cable Assembly

Contact us and let us know what you need!

We are trusted by clients in North America and Europe

Our personnel at Fourmost have decades of experience serving the oil & gas and telecommunications industries.


Get informed

Our Blog

Our latest blog.

Where Should You Source Your Manufacturing?

The 2020 Pandemic has shed a spotlight on many issues across various industries, including those in supply chain management. One of these issues is how reliant North American companies are on Asian manufacturing suppliers and, in particular, those in China.


China’s Economy Bounces Back As Pandemic Is Brought Under Control

If you have any questions, please feel free to get in touch below.

Contact Us

Contact Us

3750 46 Ave SE #303, Calgary, AB T2B 0L1

(403) 705-0460

Copyright Fourmost 2020. All rights reserved. Made with pride by Simba Creative