Sleek has announced the appointment of Josie Klafkowska as its first chief marketing officer, joining the Board and senior leadership team as the organisation enters its next phase of growth.
Klafkowska joins Sleek from WPP global advertising network, VML, where she most recently served as global partner marketing director, driving ecosystem growth alongside technology vendors such as Adobe, Salesforce, Shopify and Stripe.
Her 20-year career spans advertising, martech, and experiential marketing, during which she has held various leadership roles across global networks and independent agencies, bringing a wealth of experience in B2B marketing, strategic growth and lead generation.
The hire follows a period of rapid momentum for Sleek, which has more than doubled in size since 2021, featuring in The Sunday Times list of fastest-growing private companies this year at number 21 and in the Business Leader Growth500 List.
The organisation is on track to achieve £50 million in revenue by 2026/27, underpinned by its people-first culture, strong ongoing partnerships with major clients such as Adobe, Amazon Web Services, Bentley, and SLB, and continued investment in creative excellence.
Founder and CEO, Jennifer Davidson, commented: “Josie’s arrival marks a real milestone for us. We’ve been growing fast with 80% of our projects coming from repeat clients and word of mouth, but now we’re focused on doing it in a more structured, strategic way. It’s taken us a year to find the right person for this role – someone who understands how to tell our story and bring our vision to life.
“Josie brings extensive experience working with many of the tech organisations that are part of our client base, which will be invaluable as we continue to scale. I’m incredibly proud that, while so many businesses are consolidating or cutting back, we’re continuing to invest in our people and our future.”
Klafkowska added: “What Jennifer and the team have built at Sleek is rare – a company that has managed to grow at pace without losing its culture or purpose. It’s this tight focus on ‘growth without compromise’ that attracted me to Sleek and it’s what keeps clients coming back. I’m excited to help shape the next phase of the Sleek story, strengthening how we connect with clients and working with them to achieve great outcomes through live events.”
Following the appointment, Sleek will continue to enhance its marketing and client development functions and explore strategic international opportunities for future growth.