Strudwick received the award last week for his investigative work on the practice of 'conversion therapy'. His work for the Independent prompted the British Medical Association to pass a motion condemning the practice.
Times columnist Caitlin Moran, Daily Mirror sports journalist John Cross and freelance broadcaster and journalist Martin Popplewell were also in the running for this year's journalism prize.
Strudwick is a columnist for Gay Times and also writes for the Guardian. He was previously a senior contributing editor and columnist for Attitude magazine.
The Times was also praised by the charity and took the Publication of the Year Award.
"Gay issues have been an integral element of The Times' editorial agenda in the last year... from thought-provoking stories on equality to the knowing wit of Caitlin Moran and compelling analysis by Jeanette Winterson," a release from Stonewall says.
Free daily newsletter
If you like our news and feature articles, you can sign up to receive our free daily (Mon-Fri) email newsletter (mobile friendly).
Related articles
- Journalism and media awards in 2024
- UK’s first awards scheme for freelance journalists opens
- Jemima Villanueva, executive director EMEA at The Atlantic, on what makes an award-winning podcast
- What makes a successful news and current affairs podcast?
- Weekly journalism news update: artificial intelligence, podcast ad revenue and 'audience canvas'