Nuget

EF4

EF5

EF6

Supports

• All EntityFramework releases available in nuget
• Code-First
• Database-First (from ef 6.0.0)
• Inserting Table-Per-Hirerachy entities
• Inserting Table-Per-Type entities

Usage

Extension itself is in namespace EntityFramework.BulkInsert.Extensions. So to reveal the extension method add using 

using EntityFramework.BulkInsert.Extensions;

And then you can do this

context.BulkInsert(entities);

NB! This action is executed immediately in its own transaction. To combine bulk insert with DbContext, TransactionScope must be used.

using (var ctx = GetContext())
{
  using (var transactionScope = new TransactionScope())
  {
    // some stuff in dbcontext

    ctx.BulkInsert(entities);

    ctx.SaveChanges();
    transactionScope.Complete();
  }
}

Read more from documentation