Yes you can! We encourage you to validate your results against market data to provide greater certainty for you and we would love to help you with.
We recommend looking at behavioral data such as market and sales data to validate the data but also offer validation through opinion data such as: opinion polls if needed.
Here are some examples of sources you can validate your data against.
Market Data
Market share
Sales Data
Nielsen
Internal sales data
Opinion Polls
Contact us and we can help you validate your data. If you are looking for other validations we have done on Share of Search, look at our Share of Search validation library: