Top 20 NuGet ORM Packages

ASP.NET Identity providers that use NHibernate.
**Note this is a .NET 4 version which uses the Microsoft.Bcl.Async library to run** An extremely easy to use Micro-ORM supporting Sql Server, MySQL, PostgreSQL, Oracle, Sqlite, SqlCE. Originally Schotime's PetaPoco branch.
Cache provider for NHibernate using MemoryCache.
A library that extends the functionality of Entity Framework 6.1 by adding batch update, future queries and audit logs.
Early preview of some testing helpers for Entity Framework.
Lightweight near zero-configuration library for easy conventional mapping for nhibernate.
Entity Framework Core operators for FluentRestBuilder.
InMemory extensions for FluentModelBuilder
T4 templates for generating repositories with NecroNetToolkit.
An extension for the MicroLite ORM Framework to add OData 4.0 query support to MicroLite.Extensions.WebApi.
A library for handling soft deletes & timestamps in Entity Framework.
This is a repository pattern for Entity Framework (EF) Core.
A small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system.
Extension, to translate DATEDIFF to SQL Server (Server / Client Eval)
EF Core - Generic Repository
Functions similar to iBATIS and Dapper, but without XML
An implementation of M.Repository abstraction using EntityFramework.
Quickly test your NHibernate mappings using the PersistenceSpecification class
Providers access to the INFORMATION_SCHEMA via EntityFramwork and LINQ.
A set of extensions for entity framework classess providing useful functionality, such as update or delete methods for EF Queries, as well as some utility extensions.