Top 20 NuGet bulk Packages

Dapper Plus - High-Efficient Bulk Actions (Insert, Update, Delete, and Merge) for .NET Support: SQL Server, SQL Azure, SQL Compact, MySQL, SQLite and more! FREE trial & PRO version
Entity Framework: Bulk Insert, BulkSaveChanges, Bulk Update, Bulk Delete, Bulk Merge, and Bulk Synchronize. Support: SQL Server, SQL Azure, PostgreSQL Coming soon: SQL Compact, Oracle, MySQL, and SQLite This library is NOT FREE. Trial period always stops at the end of the month.
Entity Framework Extensions extends your DbContext with high-performance bulk operations: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, BulkMerge, and more. Example: https://dotnetfiddle.net/awlJdf Benchmark: https://dotnetfiddle.net/35mQ0W Include free and prime features.
EntityFramework EF Core Bulk Extensions for Insert Update and Delete (CUD) operations on SQL Server.
C# Bulk Operations: Bulk Insert, Update, Delete & Merge. Support: SQL Server, SQL Azure, SQL Compact, MySQL, SQLite and more! FREE trial & PRO version
Entity Framework: Bulk Insert, BulkSaveChanges, Bulk Update, Bulk Delete, Bulk Merge, and Bulk Synchronize. Support: SQL Server, SQL Azure, SQL Compact, Oracle, MySQL, SQLite, and PostgreSQL. This library is NOT FREE. Trial period always stops at the end of the month.
Entity Framework Extensions extends your DbContext with high-performance bulk operations: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, BulkMerge, and more. Example: https://dotnetfiddle.net/awlJdf Benchmark: https://dotnetfiddle.net/35mQ0W Include free and prime features.
Entity Framework Extensions extends your DbContext with high-performance bulk operations: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, BulkMerge, and more. Example: https://dotnetfiddle.net/awlJdf Benchmark: https://dotnetfiddle.net/35mQ0W Include free and prime features.
DataTablePlus provides some extensions in order to transform object lists into data tables based on the object mappings (it's able to use the entity framework mappings or just the objects structure) and also some sql helpers which perform some batch operations using the previously built data tables....
Fast bulk insert extensions for Dapper.
This extension provides bulk insert, bulk update and bulk select. Bulk insert supports complete entity hierarchies, maintaining foreign key relationsships.
ExpertTexting API SDK for DotNet
Extensions for EntityFramework Core to use SqlServers SqlBulkCopy in order to provide high performance Insert, Update and Delete mass operations.
General utilities and helpers.
A library for Bulk Copy / Bulk Inserts with PostgreSQL.
A library extension built around Microsoft Entity Framework to extend its functionality and performance.
Extension for Entity Framework Npgsql for Bulk Copy
DataBooster is a high-performance extension to ADO.NET Data Provider, includes a light encapsulation to minimize your DAL code and a booster to maximize throughput for writing huge numbers of records to database. Please visit https://github.com/DataBooster/DataAccess for detail.
Use Bing Maps API to verify, standardize and geocode addresses stored in your CRM records of all types.
Plugin for XrmToolBox to bulk download attachments from notes or emails. Also ability to upload note attachments.