By Jon Robinson Aventum Group, the insurance giant founded by the father of future F1 star Oliver Bearman, has almost doubled its revenue and profits, it has been revealed. According to newly-published accounts with Companies House the London-based group achieved a net revenue of £112.2m in the year to June 30, 2023, up from the £61.7m it achieved in the prior 12 months. The group also posted a pre-tax profit of £19.6m for the year, up from £10.1m. Aventum Group’s companies include Consilium, Rokstone and Mulberry Risk and is run by chief executive and founder David Bearman, the father of Oliv…