Tyk (pronounced like "tyke", meaning small/lively child) got its start as an open source side project first for co-founder Martin Buhr, who is now the companys CEO, while he was working elsewhere, as a "load testing thing," in his words. And Tyk was born as a startup co-founded with James Hirst, who is now the COO, who worked with Buhr at a digital agency some years before. The key motivation behind building Tyk has stayed as its unique selling point for customers working in increasingly complex environments. “Martin and James have built a world-class team and the addition of this new capital will enable Tyk to accelerate the growth of its API management platform, particularly around the GraphQL focused Universal Data Graph product that launched earlier this year," said Martin Brennan, a director at SEP, in a statement. "We are pleased to be supporting the team to achieve their global ambitions.” Keith Davidson, a partner at SEP, is joining the Tyk board as a non-executive director with this round.