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Struggling With Your Telecom, Mobility and SaaS Expenses?

Calero-MDSL is the leading technology expense management solution for complex enterprises.

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One Partner to Manage All Your Expenses

Whether your enterprise needs help with one type of expense or all, Calero-MDSL automates the technology-spend lifecycle, providing full transparency and complete control. 


Free 90 Day UCaaS Trial

Try the Solution, Keep the Savings

Try our market-leading UCaaS Expense Management solution free for 90 days and effectively manage your Zoom and Teams licenses. Direct integrations allow a quick 10 minute setup, so you can immediately identify significant savings with a central location to discover, manage and optimize UCaaS estate.

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Our Industry Experience

More than 3,000 clients worldwide have confidence in Calero-MDSL to manage their mission-critical and highly complex recurring expenses across telecom, mobility and software subscriptions.

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Award Winning Solutions

CIO 100 Winner 2021 USA (Colour, Positive)CODIE_2021_winner_black



Countries Deployed


Billion Managed


Mobile Devices

We chose Calero-MDSL because they successfully demonstrated to us their extensive knowledge of Global telecom providers, contracts and billing. They go the ‘extra mile’ for their customers and the customer is always first.
Patrick O'Brien
Head of Telecoms Centre of Excellence, Danfoss
One of the greatest values is that I have a very accurate picture of all the services we provide to various departments.
Chris Magill
George Washington University
My management team was very pleased to see the volume of savings we have booked into the system and thanks for all your efforts to drive many outstanding items to a close, it truly helps me to show the value of the service.
Gary Fortune
Global Mobility Manager, SAP
The entire Calero-MDSL team is very professional and willing to take the "extra mile" in support of our global wireless mobility service requirements.
Software Project Manager
Industry Leading Document Management Technology Provider
My team at the present time is superb.  Much better than my previous TEM partner.
Program Owner
Industry Leading Airline
The Calero-MDSL management team is very knowledgeable and eager to determine a resolution to an issue as they come available.
Program Contributor
Global Credit Union

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Take Control of Your Technology Expense Management

Calero-MDSL is more than just software. We’re ready to provide real-time insight into your company's technology programs and assets.

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