Public procurement offers major business opportunities, but complex rules and limited transparency can restrict competition and SME participation. During OECD Public Procurement Week on 27–30 October, Business at OECD advanced recommendations for revising the 2015 OECD Recommendation on Public Procurement, building on our earlier work on competition and corruption risks. Our Governance and Regulatory Policy Committee Vice-Chair and Ibec's Aidan Sweeney called for greater transparency and a “Think Small First” approach to make procurement markets more accessible to businesses of all sizes.