Messer competes for high-performing subcontractors, which are the foundation of our ability to deliver on our commitments.

Developing strategic relationships with high-performing, certified, diverse subcontractors and suppliers helps create a competitive advantage that will better serve our customers and grow market share. 

Starting your partnership with Messer begins with three steps:

Step 1: Certify

Diverse businesses who are interested in doing business with Messer must first be certified by an approved certifying agency. We accept certifications from the National Minority Supplier Development Council (NMSDC) and its regional chapters, the Women’s Business Enterprise National Council (WBENC) and its regional chapters, the National Veteran Business Development Council (NVBDC), as well as any federal, municipal or state certifications.

Download the list of approved certifying agencies.

Step 2: Register

Messer is dedicated to having meaningful and trusting relationships with our subcontractors and suppliers.

Our goal is to provide the opportunity for you to successfully compete on our projects that match your capacity, skillset and financial strength.

All of our subcontractors and suppliers are required to complete the subcontractor enrollment process, which aligns with each of Messer’s departmental needs and requirements. 

The Messer Business Portal (MBP) is an online platform that will navigate the process of becoming a Messer business partner. The MBP provides clarity of compliance documents, process transparency and faster turnaround time on all documents submitted. 

Register your company on the Messer Business Portal.

You will need to use Internet Explorer 10 (or above), Google Chrome or Firefox. Here are helpful resources to learn more about the portal: MBP subcontractor's user guide and MBP overview video.

Step 3: Connect

Messer encourages potential subcontractors and suppliers to contact us to discuss specific areas of expertise. Prior to making contact, we ask that you do your research to understand our needs and what value proposition your business can bring. You can begin your research on

To schedule an appointment, if you need assistance becoming a certified diverse business, or if you have any questions regarding this process, please email or