Family Fund provides grants for families raising disabled or seriously ill children and young people.
The "100ks of Summer" fundraiser will see participants attempt to complete 100ks in anyway they can, whether it be running, walking, swimming, skating or a combination of them all.
According to Inspire, over the last year, 76% of families raising seriously ill or disabled children reported they were in a worse financial situation because of the pandemic.
Lisa Henning, managing director of Inspire, said the company has a "very close working relationship" with Family Fund.