Castellani is a Tuscan wine producer and négociant based in Pontedera (Pisa province), operating across multiple Tuscan DOC and IGT wines including Chianti, Morellino di Scansano, and Tuscan IGT varietals from purchased fruit and own vineyards. The Villa Puccini and Principesco labels represent the estate's mid-range and premium tier respectively. Castellani's scale as a Tuscan négociant allows coverage of the full regional variety spectrum across different appellations and price points.

For programmes wanting accessible Tuscan wine representation across a range of styles Chianti, Merlot-based Tuscan IGT, Morellino without committing to single-estate pricing, Castellani's multi-label négociant model provides the breadth. The Villa Puccini branding (referencing the nearby birthplace of the composer Giacomo Puccini) connects the range to the Tuscan cultural heritage of Lucca province.