Cello Group takes controlling stake in Oomph

Cello Group, the marketing services group, is taking a controlling stake in Oomph, a digital marketing consultancy. Cello is buying 50.1% of Oomph for &£150,000. The remaining 49.9% is subject to a put option by the sellers for up to &£1.5m. Oomph’s clients include Cox & Kings, Cotswold Outdoor and Bristol & West.