What is Federated Search?
What does 'Federated Search' mean?
Federated search sends a query out to several systems at once and merges what comes back into one ranked list, rather than relying only on a single index built in advance. Run live, it means nothing has to be copied into a central store, which removes a whole class of data residency and retention questions. The trade is latency and ranking: merging results from systems that score relevance differently is harder than ranking one index, and the slowest source sets the speed of the answer.
List of software with Federated Search functionality
About the reviewer
Rajat Gupta is the founder of Spotsaas, where he has built software research covering 25,000+ products across CRM, HR, AI, and finance. He applies hands-on product research and a background in commerce and the CFA program to evaluate software through a business and ROI lens. His goal: help teams make software decisions they won't regret.
Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].