The investment comprises an initial commitment from Hera Holdings alongside continued backing from the Teesside Pension Fund.
"This is fantastic news for GB Bank and everyone who has supported our purpose and ambitions since day one and is testament to the hard work of every single member of the team."
Populous makes a strategic investment in event planning software provider OnePlan.
"This investment opens an exciting new chapter for OnePlan, building on the fast growth we’ve experienced to date. The unrivalled knowledge and specialisms of the team at Populous will deepen the positive impact our software provides. We’re excited by the new opportunities this partnership opens, and the many benefits it creates for events and venues across the world."
Soulmates Ventures and Deeptech Seed Fund co-led the seed round, which includes £500k from Innovate UK.
"I couldn't be more excited and proud about this next stage in our growth. It is a landmark opportunity, a once in a lifetime moment, to build a transformative product."
Vala Capital represented the London family office in the early stage investment.
"Having spent three years developing our product and building a great team, we launched to market last October and quickly received strong uptake. We are delighted to gain such ringing endorsement from a prestigious family office and this extra funding will help us boost both revenue and market share."