Top 20 NuGet IoC Packages

Simple domain events.
Cross-Cutting.NetCore bits.
StructureMap.AspNetCore
Unity for ASP.NET WebApi
The Original IoC Container for .Net
Extension for Ninject which allows bindings to define additional scope types.
Extension for convention based binding for Ninject
Unity.WebAPI allows the simple Integration of the Unity IoC container with ASP.NET Web API.
Extension for Ninject providing integration with ASP.NET WebAPI 2
Contains probability distributions, statistical models and methods such as Linear and Logistic regression, Hidden Markov Models, (Hidden) Conditional Random Fields, Principal Component Analysis, Partial Least Squares, Discriminant Analysis, Kernel methods and functions and many other related techniq...
Contains a matrix extension library, along with a suite of numerical matrix decomposition methods, numerical optimization algorithms for constrained and unconstrained problems, special functions and other tools for scientific applications. This package is part of the Accord.NET Framework.
Extension for Ninject providing integration with ASP.NET MVC5
Simple Injector ASP.NET Web API Integration.
DryIoc is fast, small, full-featured IoC Container for .NET
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.
Generate Audit Logs by intercepting operation calls on any class without changing its code.
A simple caching AOP extension library based on Castle
The PPWCode Vernacular NHibernate Castle Windsor library version II.
Auto-generate hook helper .dlls, hook arbitrary methods via events: On.Namespace.Type.Method += YourHandlerHere;
Glader.Essentials provide basic essential .NET/C# development libraries for day-to-day development needs. The models library has Refit library related Attributes and HTTP Types.