Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.
Rock RMS - Rock RMS is a community supported open-source Church Management System that provides innovative features to churches of all sizes.
ElasticSearch - Elasticsearch is an open source, distributed, RESTful search engine.
eCatholic - eCatholic provides a total content management system that helps Catholic parishes, ministries, & dioceses create websites & website design.
Site Search 360 - Site Search 360 enhances and improves your built-in CMS or product search with autocompletion, semantic search, filters, facets, detailed analytics, and a whole lot of customization options.
ChurchInsight - ChurchInsight is a church website content management system (cms). It allows churches to have great church websites and the best church website designs.