The group plans to use the proceeds to fund new company-owned and franchised openings in the UK.
It has already signed five locations with new and existing franchisees and is targeting at least 25 additional UK sites over the next 18 months as part of a plan to reach 100 UK locations by 2029.
Alongside the equity fundraise, the group has also launched a £200,000 crowdfund with Republic.
As part of the pre-registration, former rappers Casyo ‘Krept’ Johnson BEM and Karl ‘Konan’ Wilson BEM have made an undisclosed investment and joined the business as creative directors.
Launched in 2021 by Kaysor Ali, the company currently operates 14 sites across the UK.
Over the past year, the group has increased system sales by more than 50% to £7.9m, driven by new franchised store openings in Glasgow, Cardiff, and Brighton and a corporate store in London Victoria.
Its menu features items such as the Big Smack, made with four 2oz Angus beef patties, cheese, Smacks sauces, lettuce, gherkin and onion; and the Bacon Smackdown with two 2oz patties, turkey bacon, cheese, Smacks sauces, lettuce, gherkin and onion; as well as chicken burgers and a veggie burger.