Start Supplier Engagement
ctrl+s turns your priority supplier list into a running program – managed by procurement and sustainability together. Comparable supplier signals feed into your Scope 3 inventory, and into the reductions you can track against your targets.
Rated by the Scope 3 Peer Group
Supplier Engagement That Turns Into Real Reduction.
Run It Like a Program.
Procurement and sustainability work from one tool: invite the priority cohort, send reminders, track submissions, manage follow-ups. Filter, sort, and search across the supplier base. Quality flags and plausibility checks run in the background – cohort by cohort, cycle by cycle, year over year.
Engagement Suppliers Actually Complete.
ctrl+s is free for suppliers and returns something useful – their own Carbon Reduction score, peer benchmarks, and a free carbon accounting module. The self-assessment is industry-specific, tuned to each supplier's business model, and capped at 19 questions.
Comparable Suppliers, Steerable Reductions.
A program turns engagement into reduction when suppliers become comparable. ctrl+s gives every engaged supplier the same signal – across data maturity, industry, and geography – so procurement can steer, sustainability can report, and suppliers can see where they stand against peers. AI-enriched recommendations point each supplier to the next reduction step. Reductions land directly in your Scope 3 inventory – not in a separate report.
60–70% Supplier invitation response rate – well above the industry average.
With the supplier engagement module, ctrl+s created an easy-to-use tool which allows our supplier network to develop their individual path to net-zero emissions. It gives us the opportunity to discuss and align CO2-reduction ambitions with our suppliers and to reflect them into our daily sourcing decision.
Tobias Weirich
Siemens AG
Start Engaging Your Suppliers.
In a personalized demo, our Scope 3 experts show you how ctrl+s Supplier Engagement turns your priority supplier list into a running program – with response rates and reductions that land in your inventory.