Update subprocessor list.

Author: ladannasserian

src/legal/subprocessors.md

@@ -6,12 +6,37 @@ hide-feedback: true
 
 [email]: mailto:[email protected]
 
-> Current as of: April 1, 2018
+> Current as of: December 19, 2019
 
-Welcome to Segment's Subprocessor repository page where we maintain a current list of Subprocessors authorized to process customer data for Segment's services. Segment imposes data protection terms with each Subprocessor regarding their security controls and applicable regulations for the protection of personal data.
+Welcome to Segment’s Subprocessor repository page where we maintain a current list of Subprocessors authorized to process customer data for Segment’s services. Segment imposes data protection terms with each Subprocessor regarding their security controls and applicable regulations for the protection of personal data.
 
-| Entity Name   | Entity Type   | Entity Location  |
+The Data Subprocessors in which Segment utilizes can be categorized into three categories:
+
+## Core Infrastructure Data Subprocessors
+
+These Data Subprocessors apply to all customers who utilize the Segment platform and are agnostic of product utilization.
+
+| Entity   | Entity Type   | Entity Location  |
 | ------------- |:-------------:| ----------------:|
 | Amazon Web Services, Inc. | Cloud Service Provider | USA |
-| Google LLC | Cloud Service Provider | USA |
 | Datadog, Inc. | Business Analytics | USA |
+
+## Support Data Subprocessors
+
+These Data Subprocessors may be utilized to support customers which who may elect to share personal data with Segment support personnel.
+
+| Entity        | Entity Type      | Entity Location |
+| ------------- | ---------------- | --------------- |
+| Slack, Inc.   | Customer Support | USA             |
+| Zendesk, Inc. | Customer Support | USA             |
+
+## Service Specific Data Subprocessors
+
+These Data Subprocessors apply to customers who use specific product functionality within the Segment platform which is supported by a non-core infrastructure Data Subprocessor, including specific destination partners.
+
+| Entity | Related Segment functionality | Entity Type | Entity Location |
+| ------------ | ---------- | ---------------------- | --------------- |
+| Google LLC.| BigQuery Data Warehouse Destination, Personas | Cloud Service Provider | USA|
+| IBM LLC.| Db2 Data Warehouse Destination Data Warehousing | USA |
+| Microsoft Azure | Azure SQL Data Warehouse Destination | Data Warehousing | USA|
+| Snowflake, Inc. | Snowflake Data Warehouse Destination | Data Warehousing | USA |