The appointment follows a strategic review at the charity that sets out a plan for the next five years, focusing on raising the profile of the medical research funded by the charity, as well as expanding its sources of fundraising.
Browne said: 'The work we do is responsible for changing the lives of thousands of children and families. There are babies alive today who simply wouldn't be without the research we've funded.'
Sparks funds research into conditions that affect babies from pre-birth to diseases and illnesses that can develop in the early years of life, such as cancer and meningitis.
Browne worked at the National Autistic Society for two-and-a-half years, before which she was an account manager at Hammond PR.