Comment by EC1

Cold call. Cold talk. Networking events. Developer meetups. It's honestly so easy. Handout business cards, have a decent site with a portfolio + some sort of automated contact form, maybe even an automated quote generator. Have one buddy do all the networking and bring you clients, you do the work, make money, reinvest in remote employees, keep doing this, get an office, hire some in person staff and boom, you have a consultancy.