Top 20 NuGet ioc Packages

Envelop is a simple to use Dependency Injection and Inversion of Control container
This package will add the reference to MEF with the Copy Local flag set to false.
CleanIoc is a dependency injection framework that aims for simplicity and clean code.
An extension to the LightInject service container that enables dependency injection for SignalR applications. See LightInject.SignalR for the source distribution.
Facilitatates DI, IoC, Event Aggregation, and provides tools for Meta Developers, such as Reflection Extension Methods and Attribute Interpretation Services.
IOC'ish IOC..
This handy extension allows you to define code regardless of the final IoC container, simply add the packages for the containers you wish to support.
Allows types registration in Unity IoC container using naming conventions.
InjectionMap.Configuration is a small extension to InjectionMap for defining mappings in the application configuration file.
An extension to the LightInject service container that enables dependency injection in xUnit test methods.
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.
Inversion of control container for cross platform development on Android, iOS and WinRT
Dead Simple dependency mechanism provider to achieve loose coupling and easy mocking.
Unofficial.Unity
Mini IoC container.
Adds support for dependency injection to AsyncInit. Supported Platforms: * .NET Framework 4 * Silverlight 4 * Windows 8 * Windows Phone Silverlight 7.1 * Windows Phone 8.1 * Xamarin.Android * Xamarin.iOS * Portable Class Libraries
Adds asynchronous capabilities to the Unity Container. Supported Platforms: * .NET Framework 4.5 * Windows 8 * Windows Phone Silverlight 8 * Windows Phone 8.1 * Xamarin.Android * Xamarin.iOS * Portable Class Libraries
Simple IoC container for singletons