Top 20 NuGet IoC Packages

Common building blocks used INTERNALLY by MonoMod and Harmony which can be used to build your own libraries, f.e. RuntimeDetour's platform abstraction and Utils' DynamicMethodDefinition. For code that is ready to use reliably, use MonoMod.Utils.
Extremely Fast MessagePack(MsgPack) Serializer for C#(.NET, .NET Core, Unity, Xamarin).
Ninject extension that allows to automatically create factories.
DryIoc.MefAttributedModel is DryIoc extension to support Microsoft Managed Extensibility Framework for DryIoc container
Superset of MEF attributes. In addition to Export/Import contains attributes to support modern IOC (DryIoc) features
Register services using assembly scanning and a fluent API.
DryIoc is fast, small, full-featured IoC Container for .NET
Simple, powerful and fast expressions based Inversion of Control container for .NET.
The #1 pattern-aware extension to C# and VB.
This package contains Unity Container and Abstractions libraries as a single package.
Cecil is a library written by Jb Evain to generate and inspect programs and libraries in the ECMA CIL format. It has full support for generics, and support some debugging symbol format. In simple English, with Cecil, you can load existing managed assemblies, browse all the contained types, modify th...
Castle Core, including DynamicProxy, Logging Abstractions and DictionaryAdapter
Castle Windsor is best of breed, mature Inversion of Control container available for .NET.
Use these extensions to build Prism applications based on Unity.
Dependency injection support for Akka.NET
Unity Container Public Abstractions
SpecFlow plugin that enables to use Autofac for resolving test dependencies.
Provides a service provider-based container adapter for Rebus
An extension for Autofac-IoC to use Serilog and Microsoft's logging abstractions with ease.
Attributes and interfaces for .NET types serializable with MessagePack.