Pickmybrain, a Tallinn-based platform that turns professionals' expertise into AI-powered 'Digital Brains', has raised a $2.1 million pre-seed round from business angels including Garri Zmudze, an early investor in drug discovery company Insilico Medicine, and Raison.app, an investment platform with $250 million in assets under management. The platform, formerly WOIS.io, hosts over 1,000 professionals across sports, entertainment, and business. The funding will be used to grow the team, scale into new markets, and improve the product.