Developing strategic relationships with high-performing, certified, diverse subcontractors and suppliers helps create a competitive advantage that will better serve our customers and communities. Start your partnership with Messer in three steps:

Step 1: Certify

You must 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 in the Messer Business Portal

Messer is dedicated to having meaningful and trusting relationships with our subcontractors and suppliers. All are required to complete the enrollment process starting with the Messer Business Portal (MBP). It is an online platform that will navigate the process of becoming a Messer business partner. It provides clarity of compliance documents, process transparency and faster turnaround time on all documents submitted. Register your company today.  You will need to use Internet Explorer 10 or above, Google Chrome or Firefox.

Here are helpful resources to learn more about the Messer Business Portal:

Subcontractors, please note: All Messer subcontractors and suppliers are required to submit valid, current insurance certificates in order to achieve compliance with the subcontract. Subcontractors are encouraged to participate in our Master Certificate of Insurance Program to streamline the document submission process. Use this link to see Messer's insurance compliance guide for an overview of the submission process for standard requirements. 

Insurance Brokers and Agents, please note: You can now submit insurance certificates on behalf of the subcontractors to achieve compliance. Click here to access the external document submission page. The purpose of this functionality is to further streamline the subcontractor insurance submittal process and to achieve compliance with the subcontracts.

Here is a helpful resource to guide you through the submission process :

Step 3: Connect

Messer encourages potential subcontractors and suppliers to contact us to discuss specific areas of expertise. Prior to making contact, 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, email