Welcome to the ISWM

Advancing the science of weighing and measurement.

Welcome to the International Society of Weighing & Measurement the trade association for weighing and measurement professionals. The ISWM is committed to promoting and enhancing the professionalism and success of our industry. ISWM members include manufacturers and dealers/distributors of weighing and various measurement equipment, state weights and measures officials and industry end-users. From the finest precision balance to massive railroad and truck scales, from pressure to linear measurement, and various process automation equipment, ISWM members supply products and services critical to global commerce. This equipment grouping helps all industries achieve the highest possible standards and efficiency.

Advertising Contract (2024)

Company News Guidelines are for all company members to post their news.

Membership Application (2024)

Qualified Military and Students may now join the ISWM at no cost.

Here is the link to Student and Military Member Applications.

2024 Handbook 44 Scale Code Available for Download. Just log into the ISWM Members Only section and download the pdf.  If you need assistance with your log-in, contact the ISWM staff at [email protected] or [email protected].  

Rapp/Mantes Scholarship Application 2024

Search ISWM W&M Dealer Listing by State

Search ISWM Manufacturer Listing

Online Training Detail

Click here to see our current online training offering, including Handbook 44 scale code.

Division Support 

Would your division like to have a meeting? If your division wants to meet virtually, the ISWM staff is happy to assist. Contact [email protected] or 715-651-9123 to schedule a Zoom Event for your division. 

Buying Commercial Scales Online - Things to Consider

Download the NCWM's guide to identifying red flags and avoiding some of the pitfalls of considering an internet purchase on a commercial scale.