The company explored partial investment and a full sale.
The company is now majority-owned by her two daughters: Debbie and Sue.
Hartswood is perhaps best associated withSherlock, the iconic BBC series starring Benedict Cumberbatch and Martin Freeman.

Hartswood Films/REX/Shutterstock
Sherlocklast aired in 2017, but talk of the show returning in some form has never dimmed.
Youll have to ask Benedict and Martin.
Sales stood at 29.7M ($37M), down nearly 40% from 49.1M the previous year.

Pre-tax profits were up 39% to 7.8M, according to a filing at the UKs Companies House register.
ITV Studios, owned by UK broadcaster ITV, posted record revenues of 2.2B in 2023.
EBITA increased 10% to 286M.
The studio has a plan to grow 5% a year by 2026.
ITV Studios and Hartswood declined to comment.