Top 20 NuGet IoC Packages

This package have been merged with MVC4. Download that package instead.
Simple InversionOfControl implementation for multiple .NET platforms.
.Net IoC
CleanIoc is a dependency injection framework that aims for simplicity and clean code.
An MVC4 web extension library for the Hiro IOC container framework.
A web extension library for the Hiro IOC container framework.
An MSBuild task extension library for the Hiro IOC container framework.
Simple IoC container for singletons
Simple InversionOfControl implementation for multiple .NET platforms added as source-code.
Library.Net
If you use constructor injection with Unity this utility will automatically inject mocks through the constructor of a given object, managing them in a container for later access (if required).
Caelan Framework for class building
Convention based configuration API for the Microsoft Unity IoC container. With just a few lines of code, you can now registere all your classes in the entire solution. If the built-in conventions doesn't fit your needs, it is very easy to extend with your own.
Package Description
A rest helper for Bridge.Net
A not so fancy IoC container that works.
Opinionated WebApi project setup and configuration
Wiesend's Dynamic Link Library is a collection of reusable code that I've written, or found throughout my programming career. It includes code to help with tasks including encryption, file management, compression, serialization, email, image manipulation, SQL, various file formats (CSV, iCal, etc.),...
Adds mocking capabilities to the LightInject service container.
An extension to the LightInject service container that enables dependency injection for ASP.NET MVC applications.