diff --git a/packages/providers/src.ts/alchemy-provider.ts b/packages/providers/src.ts/alchemy-provider.ts
index 0caedb785..9b27dd677 100644
--- a/packages/providers/src.ts/alchemy-provider.ts
+++ b/packages/providers/src.ts/alchemy-provider.ts
@@ -70,6 +70,12 @@ export class AlchemyProvider extends UrlJsonRpcProvider {
             case "kovan":
                 host = "eth-kovan.alchemyapi.io/v2/";
                 break;
+            case "matic":
+                host = "polygon-mainnet.g.alchemy.com/v2/";
+                break;
+            case "maticmum":
+                host = "polygon-mumbai.g.alchemy.com/v2/";
+                break;
             default:
                logger.throwArgumentError("unsupported network", "network", arguments[0]);
         }
diff --git a/packages/providers/src.ts/infura-provider.ts b/packages/providers/src.ts/infura-provider.ts
index 1bfaa9ed9..e32986a10 100644
--- a/packages/providers/src.ts/infura-provider.ts
+++ b/packages/providers/src.ts/infura-provider.ts
@@ -99,6 +99,12 @@ export class InfuraProvider extends UrlJsonRpcProvider {
             case "goerli":
                 host = "goerli.infura.io";
                 break;
+            case "matic":
+                host = "polygon-mainnet.infura.io";
+                break;
+            case "maticmum":
+                host = "polygon-mumbai.infura.io";
+                break;
             default:
                 logger.throwError("unsupported network", Logger.errors.INVALID_ARGUMENT, {
                     argument: "network",