diff --git a/README.md b/README.md
index df0b1eb..fbcd3c4 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@
     - [SaaS – Software as a Service] (#software-as-a-service)
     - [DaaS – Data as a Service] (#data-as-a-service)
     - [Java] (#java)
+    - [C#] (#c#)
 
 - - -
 
@@ -185,6 +186,14 @@
 * [Apache SIS] (http://sis.apache.org/) - Apache Spatial Information System (SIS) is a free software, Java language library for developing geospatial applications.
 
 
+## C#
+
+* [SharpMap] (http://sharpmap.codeplex.com/) - SharpMap is an easy-to-use mapping library for use in web and desktop applications.
+* [DotSpatial] (https://dotspatial.codeplex.com/) - DotSpatial is a geographic information system library written for .NET 4.
+* [NTS Net Topology Suite] (https://github.com/NetTopologySuite/NetTopologySuite) - A .NET GIS solution that is fast and reliable for the .NET platform.
+* [Geo] (https://github.com/sibartlett/Geo) - A geospatial library for .NET
+
+