Constellio - Enterprise Search engine

•    Java

Constellio Open Source Enterprise Search is based on Apache Solr and using Google Search Appliances connectors architecture, it allows, with a single click, to find all relevant content in your organization (Web, email, ECM, CRM etc.).

Searchdaimon - Enterprise Search

•    C

Searchdaimon is an open source search engine for corporate data and websites. It comes with a powerful administrator interface and can index websites and several common enterprise systems like SharePoint, Exchange, SQL databases, Windows file shares etc. It also supports many data sources (e.g., Word, PDF, Excel) and the possibility of faceted search, attribute navigation and collection sorting.

Open Distro for Elasticsearch - Elasticsearch enhanced with enterprise security, alerting, SQL, and more

•    Java

Open Distro for Elasticsearch is an Apache 2.0-licensed distribution of Elasticsearch enhanced with Enterprise Security, Alerting, SQL, Index Management, k-Nearest Neighbor Search, Performance Analyzer and more.

SharePoint Search Admin

SharePoint Search Admin is a windows form based tool to manage Microsoft Office SharePoint Server 2007 and Microsoft Search Server 2008 search functions. It can manage content sources, schedules, and crawl status. Please note that source code is included in release packages. ...

MOSS Wildcard Search Web Part

Finally, a dropin solution for wildcard searching using MOSS Enterprise Search. This web part simply replaces your existing CoreResultsWebPart in your search center. This is not a complete search center replacement like other wildcard search solutions. This allows you to confi

Wildcard Search Web Part for SharePoint 2010

The Wildcard Search web part for MOSS 2007 was wildly successful. Although, SharePoint 2010 has built-in wildcard searching functionality, the out-of-the box web part requires the user to add an asterisk to the search query. This web part resolves that issue.

Subject Search Result Evaluation Tool

A subject paired comparation tool for search engine result comparation. It is used to compare two sets of result files (text, xml or html), randomize the order and the set, to ensure a perfect evaluation. Originally written for SharePoint wordbreaker comparation, but can be ...

Project Server 2007: search data using SharePoint's BDC and Enterprise Search

Search Project Server data using SharePoint Server's BDC and Enterprise Search

fess - Fess is very powerful and easily deployable Enterprise Search Server.

•    Java

Fess is Full tExt Search System.