Top 20 NuGet composition Packages

MEF Contrib is a community-developed library of extensions to the Managed Extensibility Framework (MEF).
Puresharp is a Framework that provides the essential APIs to productively build high quality (.NET 4.5.2+ & .NET Core 2.1+) applications through reliability, scalability and performance without no compromise.
IPuresharp urbanize libraries with strategic private code to lay transparent foundations for Puresharp API .NET
Fluent-style class implementation / composition. Automapping, duck-typing, auto-implementation and more ...
ElegantDI is a dependency-injection container that helps build composite applications.
An MVC3 IDependencyResolver wrapper for the Managed Extensibility Framework (MEF).
A UWP Rating Control drawn by the Composition API.
A UWP SplashScreen animation by the Composition API.
MvvmLib Wpf Mvvm: ViewModelLocator, BindingProxy, etc. Navigation: NavigationService, ConfigurableNavigationService Data: ListCollectionViewEx, PagedList, PagedSource and commands ListCollectionViewCommands, PagedSourceCommands Interactivity: CallMethodAction with parameter, SelectorSel...
Services ViewModel Composition
Implements an opinionated 'parts folder' model out of the box for ASP.NET MVC and WebAPI applications.
Provides dependency injection into ASP.NET MVC controllers and filter attributes.
Adds a VS MEF system with a pre-computed, cached MEF graph.
Provides MEF based composition services to an ASP.NET MVC application
Provides MEF based composition services for an ASP.NET WebAPI application
A lightweight framework for building plugin based web applications using Asp.Net MVC and MEF.
DynamicProxy integration for Nkit.IocManager
Provides a new way of writing safe code that won't throw exceptions, using a more functional alternative.