Would you like more insight into your customers? Does your database lack some essential criteria? Then why not enrich your database?
A plethora of lifestyle and socio-demographic criteria are available.
Your B2C database can be enriched on the basis of criteria such as age, individual/collective housing (= house or apartment building), social class, phone number, email address, etc.
As for B2B, many criteria (payroll, turnover, owners, financial data, phone number, email address, etc.) are also available.