diff --git a/Providers.md b/Providers.md
index 553fe2d..8af81dc 100644
--- a/Providers.md
+++ b/Providers.md
@@ -7,4 +7,14 @@
 * The S3 provider utilizes the de facto standard AWS S3 HTTP REST API via `libcurl`
 * An access key and secret key are required for operation, configured via `S3Config.AccessKey` and `S3Config.SecretKey` in `config.json`
 * A bucket name is required, configured via `S3Config.Bucket` in `config.json`
-* Both path-style and virtual hosted-style are supported, configured via the `S3Config.UsePathStyle` setting in `config.json`
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+* Both path-style and virtual hosted-style are supported, configured via the `S3Config.UsePathStyle` setting in `config.json`
+
+### Sia
+
+* The Sia provider utilizes the `renterd` native HTTP REST API via `libcurl`
+
+### Encryption
+
+* The encryption provider takes a local path and transparently encrypts file/directory names and file content.
+* This is a pass-through provider, meaning all encryption operations happen at the time of file access.
+* This is useful for encrypting data prior to being uploaded to online backup providers like [IDrive](https://www.idrive.com/).
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