I need internet research into handmade children's clothing businesses

I own a fabric boutique in West Yorkshire and have just started to offer trade accounts - offering discounts to those companies who would use the types of fabrics I sell. I would like to target small businesses in the UK who make their own unique children's clothes, such as Etsy sellers and those that are very active on social media to see if they would be interested in opening an account. I just need company names, locations and email addresses (if possible) or failing that, social media account names. I don't need you to approach them yourself.
Examples of the types of companies are Biddy and Bear and Juniper Childrenswear.