The British Surrogacy Centre has a list of potential sperm donors, and also a list of donors who are also looking for a co-parenting situation.
BSC members who are interested in a sperm donor who would like to be a willing participant in the upbringing of a child should also make contact with us and we can put you in touch with the opposite sex to get the ball rolling.
We use PrideAngel.com for all our sperm donation needs. They are a leading worldwide connection site, fertility forum and blog for lesbian, gay, single and infertile couples, wishing to become parents through co-parenting and donor conception. Specialising in health screening advice, fertility law support, along with artificial insemination and fertility products available to purchase.