Denise O'Leary MBE

Denise O’Leary MBE is the Founder and Managing Director of Purpol Marketing, a strategic marketing and bid writing consultancy with a 90%+ win rate and over £4.4bn in opportunities secured. With nearly 30 years of experience—particularly in the construction and manufacturing sectors—she empowers SMEs to win public sector contracts through ethical, evidence-led strategies. Awarded an MBE by Queen Elizabeth II in the 2022 New Year Honours for Services to Construction and Business Owners, Denise is also the creator of WINNER AI™, the UK’s first GPT-powered tool specifically trained to write high-scoring, judge-aligned business award entries. Based on her Amazon #1 bestselling book WINNER – How to Win Business Awards, the tool is transforming the award submission process for entrepreneurs, marketers, and consultants. A 54x Stevie® Award winner—three of which are Grand Stevie® Awards—Denise was named one of the Most Inspirational Business Women in STEM and Construction in 2023 & 2025. A Chartered Marketer for over 20 years, she mentors extensively and led one of the UK’s largest Kickstart schemes. In 2025, she was named an MP HERo for her leadership and community impact. Denise’s mission is to help businesses win with purpose, integrity, and results—whether through award entries, public sector bids, or now through WINNER AI™.