What we do


As the world’s leading payments consultancy, we work with hundreds of Global 500 merchants, saving them millions every year. We collaborate with you and your partners to harness the power of data in order to maximize payments supply chain performance, all with the goal of increasing the profitability of every transaction.

Powerful Analytics. Deeper Insights. Amplified Results.


Unravel hidden fees, enhance strategies and unlock high-impact cost savings.
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Eliminate lost sales, reduce the cost of fraud and get more loyal customers through the checkout.
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Trusted by Clients and Partners

Client Stories

Unlocking Substantial Payments Budget Savings for a Top Digital Merchant

The client, a leading international digital merchant with a sophisticated payment team, faced challenges related to rising payment costs, performance comparisons, and fully maximizing cost-saving initiatives.

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Digital & Subscription Business Maximizes CNP Payments Performance with CMSPI

The merchant continues to work with us to monitor its performance and highlight new areas of opportunities to keep them ahead of the curve.

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Digital and Recurring Merchant Achieves Big Payments Cost Savings With CMSPI

After the successful completion of an audit and RFP, our experts are now focused on highlighting opportunities to drive incremental revenue growth.

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$10m in Annual Payments Cost Savings for Leading Multinational Gas & C-Store Retailer

The merchants’ partnership with our specialists has led to high-impact savings and market-leading arrangements.

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Latest Insights & Events

Blog May 28th 2024

“Fee Changes, Right Ahead!” Diving Into Spring Card Brand Releases Around the World

In April 2024, merchants around the world faced yet another set of changes to their card acceptance fees, estimated to cost them over $250 million in the U.S. alone.
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Blog May 21st 2024

Stakeholders Respond to Proposed Revision of U.S. Debit Interchange Fee Cap

For the first time since 2011, the U.S. Federal Reserve has proposed a revision to the maximum interchange fees charged on debit card transactions in the U.S.. With the comment period on the proposal now closed, CMSPI’s Insights team has analyzed the four main arguments against the rate revisions in light of public payments data.

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Blog May 13th 2024

There’s No Such Thing as European Payments: Six Steps for Merchants Going Local

At the Merchant Risk Council’s April conference in Barcelona, CMSPI’s Timo Pauget and Martha Southall were joined by Jérémie Fave, Payment and Fraud Expert at LVMH, to ask how multinational merchants are approaching one of the most complex payments markets around.

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Blog April 29th 2024

Reserve Bank of Australia Confirms Least Cost Routing Could Reduce Merchant Debit Costs by 20%

In April 2024, the Reserve Bank of Australia (RBA) released a study entitled “The Effect of Least-cost Routing on Merchant Payment Costs”, which confirmed that least cost routing could reduce merchant debit acceptance costs by 20%. Here are three major findings that Australian merchants need to know from the RBA’s analysis.

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