- Plumbee is a top-10 social casino company founded in 2011 in London with over 60 employees. It has raised $16.8 million from investors. - The social casino industry is growing rapidly, projected to generate $3 billion in revenue in 2015, with the top 5 companies controlling over 50% of the market. Mobile gaming has surpassed web as the primary platform. - Slot games dominate the social casino category, accounting for over 75% of revenue. Successful companies like DoubleDown generate over 70% of revenue from slots games.