diff --git a/indexer/services/roundtable/src/lib/athena-ddl-tables/subaccount_usernames.ts b/indexer/services/roundtable/src/lib/athena-ddl-tables/subaccount_usernames.ts
new file mode 100644
index 0000000000..577f450821
--- /dev/null
+++ b/indexer/services/roundtable/src/lib/athena-ddl-tables/subaccount_usernames.ts
@@ -0,0 +1,31 @@
+import {
+  getAthenaTableCreationStatement,
+  getExternalAthenaTableCreationStatement,
+} from '../../helpers/sql';
+
+const TABLE_NAME: string = 'subaccount_usernames';
+const RAW_TABLE_COLUMNS: string = `
+  \`username\` string,
+  \`subaccountId\` string
+`;
+const TABLE_COLUMNS: string = `
+  "username",
+  "subaccountId"
+`;
+
+export function generateRawTable(tablePrefix: string, rdsExportIdentifier: string): string {
+  return getExternalAthenaTableCreationStatement(
+    tablePrefix,
+    rdsExportIdentifier,
+    TABLE_NAME,
+    RAW_TABLE_COLUMNS,
+  );
+}
+
+export function generateTable(tablePrefix: string): string {
+  return getAthenaTableCreationStatement(
+    tablePrefix,
+    TABLE_NAME,
+    TABLE_COLUMNS,
+  );
+}
diff --git a/indexer/services/roundtable/src/tasks/update-research-environment.ts b/indexer/services/roundtable/src/tasks/update-research-environment.ts
index 24427bfd8c..6a578dcdec 100644
--- a/indexer/services/roundtable/src/tasks/update-research-environment.ts
+++ b/indexer/services/roundtable/src/tasks/update-research-environment.ts
@@ -33,6 +33,7 @@ import * as athenaOrders from '../lib/athena-ddl-tables/orders';
 import * as athenaPerpetualMarkets from '../lib/athena-ddl-tables/perpetual_markets';
 import * as athenaPerpetualPositions from '../lib/athena-ddl-tables/perpetual_positions';
 import * as athenaPnlTicks from '../lib/athena-ddl-tables/pnl_ticks';
+import * as athenaSubaccountUsernames from '../lib/athena-ddl-tables/subaccount_usernames';
 import * as athenaSubaccounts from '../lib/athena-ddl-tables/subaccounts';
 import * as athenaTendermintEvents from '../lib/athena-ddl-tables/tendermint_events';
 import * as athenaTradingRewardAggregations from '../lib/athena-ddl-tables/trading_reward_aggregations';
@@ -64,6 +65,7 @@ export const tablesToAddToAthena: { [table: string]: AthenaTableDDLQueries } = {
   affiliate_info: athenaAffiliateInfo,
   affiliate_referred_users: athenaAffiliateReferredUsers,
   vaults: athenaVaults,
+  subaccount_usernames: athenaSubaccountUsernames,
 };
 
 const statStart: string = `${config.SERVICE_NAME}.update_research_environment`;