Sinch Mergers and Acquisitions Presentation Deck

Improved margin profile and balanced product mix 40% 30% 20% 10% 0% Gross margin & Adjusted EBITDA margin 25% 33% 35% Gross margin L12M Q2 21 ■L12M Q2 21 proforma Proforma including Inteliquent, MessageMedia and Pathwire 10% 14% 16% Adj EBITDA margin ■L12M Q2 21 proforma + Pathwire 100% 75% 50% 25% 0% Gross profit by product 10% 85% L12M Q2 21 22% 18% 59% L12M Q2 21 proforma 19% 13% 16% 51% L12M Q2 21 proforma + Pathwire ■ Other ■ Operators Email Voice & Video ■Messaging 6

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