diff --git a/lib/components/ens-cache-provider.react.js b/lib/components/ens-cache-provider.react.js
--- a/lib/components/ens-cache-provider.react.js
+++ b/lib/components/ens-cache-provider.react.js
@@ -3,14 +3,21 @@
 import * as React from 'react';
 
 import { ENSCache, type EthersProvider } from '../utils/ens-cache';
+import {
+  getENSNames as baseGetENSNames,
+  type GetENSNames,
+} from '../utils/ens-helpers';
 
 type ENSCacheContextType = {
   +ensCache: ?ENSCache,
+  +getENSNames: ?GetENSNames,
+};
+const defaultContext = {
+  ensCache: undefined,
+  getENSNames: undefined,
 };
 const ENSCacheContext: React.Context<ENSCacheContextType> = React.createContext<ENSCacheContextType>(
-  {
-    ensCache: undefined,
-  },
+  defaultContext,
 );
 
 type Props = {
@@ -19,12 +26,14 @@
 };
 function ENSCacheProvider(props: Props): React.Node {
   const { provider, children } = props;
-  const context = React.useMemo(
-    () => ({
-      ensCache: provider ? new ENSCache(provider) : null,
-    }),
-    [provider],
-  );
+  const context = React.useMemo(() => {
+    if (!provider) {
+      return defaultContext;
+    }
+    const ensCache = new ENSCache(provider);
+    const getENSNames: GetENSNames = baseGetENSNames.bind(null, ensCache);
+    return { ensCache, getENSNames };
+  }, [provider]);
   return (
     <ENSCacheContext.Provider value={context}>
       {children}
diff --git a/lib/utils/ens-helpers.js b/lib/utils/ens-helpers.js
new file mode 100644
--- /dev/null
+++ b/lib/utils/ens-helpers.js
@@ -0,0 +1,75 @@
+// @flow
+
+import { userIdentifiedByETHAddress } from '../shared/account-utils';
+import { ENSCache } from './ens-cache';
+
+type BaseUserInfo = { +username?: ?string, ... };
+export type GetENSNames = <T: ?BaseUserInfo>(
+  users: $ReadOnlyArray<T>,
+) => Promise<T[]>;
+
+async function getENSNames<T: ?BaseUserInfo>(
+  ensCache: ENSCache,
+  users: $ReadOnlyArray<T>,
+): Promise<T[]> {
+  const info = users.map(user => {
+    if (!user) {
+      return user;
+    }
+    const { username } = user;
+    const ethAddress =
+      username && userIdentifiedByETHAddress(user) ? username : null;
+    const cachedResult = ethAddress
+      ? ensCache.getCachedNameForAddress(ethAddress)
+      : null;
+    return {
+      input: user,
+      ethAddress,
+      cachedResult,
+    };
+  });
+
+  const needFetch = info
+    .map(user => {
+      if (!user) {
+        return null;
+      }
+      const { ethAddress, cachedResult } = user;
+      if (cachedResult || !ethAddress) {
+        return null;
+      }
+      return ethAddress;
+    })
+    .filter(Boolean);
+
+  const ensNames = new Map();
+  if (needFetch.length > 0) {
+    await Promise.all(
+      needFetch.map(async (ethAddress: string) => {
+        const ensName = await ensCache.getNameForAddress(ethAddress);
+        if (ensName) {
+          ensNames.set(ethAddress, ensName);
+        }
+      }),
+    );
+  }
+
+  return info.map(user => {
+    if (!user) {
+      return user;
+    }
+    const { input, ethAddress, cachedResult } = user;
+    if (cachedResult) {
+      return { ...input, username: cachedResult };
+    } else if (!ethAddress) {
+      return input;
+    }
+    const ensName = ensNames.get(ethAddress);
+    if (ensName) {
+      return { ...input, username: ensName };
+    }
+    return input;
+  });
+}
+
+export { getENSNames };