diff --git a/site/src/components/Icon/identity-special.svg b/site/src/components/Icon/identity-special.svg
new file mode 100644
index 000000000..2de50c042
--- /dev/null
+++ b/site/src/components/Icon/identity-special.svg
@@ -0,0 +1,11 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g clip-path="url(#clip0_7229_57784)">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M8.00002 15.3334C12.0501 15.3334 15.3334 12.0501 15.3334 8.00002C15.3334 3.94993 12.0501 0.666687 8.00002 0.666687C3.94993 0.666687 0.666687 3.94993 0.666687 8.00002C0.666687 12.0501 3.94993 15.3334 8.00002 15.3334Z" fill="#0EAB0E"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M5.28029 4C5.02889 4 4.82509 4.2038 4.82509 4.4552C4.82509 4.7066 5.02889 4.9104 5.28029 4.9104H10.718C10.9694 4.9104 11.1732 4.7066 11.1732 4.4552C11.1732 4.2038 10.9694 4 10.718 4H5.28029ZM3.37 6.22958C3.37 5.97818 3.5738 5.77438 3.8252 5.77438C6.6084 5.77438 9.3916 5.77438 12.1748 5.77438C12.4262 5.77438 12.63 5.97818 12.63 6.22958C12.63 6.48098 12.4262 6.68478 12.1748 6.68478H11.5363V10.7359H12.1748C12.4262 10.7359 12.63 10.9397 12.63 11.1911C12.63 11.4425 12.4262 11.6463 12.1748 11.6463C9.3916 11.6463 6.60841 11.6463 3.8252 11.6463C3.5738 11.6463 3.37 11.4425 3.37 11.1911C3.37 10.9397 3.5738 10.7359 3.8252 10.7359H4.4588V6.68478H3.8252C3.5738 6.68478 3.37 6.48098 3.37 6.22958ZM9.48023 10.7359H10.6259V7.25764C10.6259 6.94126 10.3695 6.68478 10.0531 6.68478C9.7367 6.68478 9.48023 6.94126 9.48023 7.25764V10.7359ZM7.99757 6.68478C8.31362 6.68478 8.56983 6.94099 8.56983 7.25704V10.7359H7.42531V7.25704C7.42531 6.94099 7.68152 6.68478 7.99757 6.68478ZM5.3692 7.25763C5.3692 6.94126 5.62568 6.68478 5.94205 6.68478C6.25843 6.68478 6.51491 6.94126 6.51491 7.25763V10.7359H5.3692V7.25763Z" fill="white"/>
+</g>
+<defs>
+<clipPath id="clip0_7229_57784">
+<rect width="16" height="16" fill="white"/>
+</clipPath>
+</defs>
+</svg>
diff --git a/site/src/components/User/Username.jsx b/site/src/components/User/Username.jsx
index a5f1b904f..5db4e50d3 100644
--- a/site/src/components/User/Username.jsx
+++ b/site/src/components/User/Username.jsx
@@ -5,6 +5,10 @@ import { Popup } from "semantic-ui-react";
 import TextMinor from "../TextMinor";
 import { useDisablePopup } from "../../utils/hooks";
 import { truncate } from "../../styles/tailwindcss";
+import { KNOWN_ADDR_MATCHERS } from "../../utils/knownAddr";
+import IdentitySpecial from "../Icon/identity-special.svg";
+import Tooltip from "../Tooltip";
+import { p_12_medium } from "../../styles/text";
 
 const TextUsername = styled(TextMinor)`
   white-space: nowrap;
@@ -27,8 +31,20 @@ const TextUsername = styled(TextMinor)`
         `}
 `;
 
+const SpecialAccountWrapper = styled.div`
+  display: flex;
+  align-items: center;
+  gap: 4px;
+`;
+
+const Text = styled.span`
+  ${p_12_medium}
+  color: var(--textPrimaryContrast);
+`;
+
 const Username = ({ address, name, ellipsis, popup, popupContent, noLink }) => {
   const disabledPopup = useDisablePopup();
+
   let displayAddress;
   if (typeof address === "string") {
     if (ellipsis) {
@@ -50,16 +66,27 @@ const Username = ({ address, name, ellipsis, popup, popupContent, noLink }) => {
     }
   }
 
-  const displayName = name ? name : displayAddress;
+  const knownAddr = KNOWN_ADDR_MATCHERS.map((matcher) => matcher(address)).find(
+    Boolean,
+  );
+
+  const displayName = name ? name : knownAddr ? knownAddr : displayAddress;
   return (
-    <Popup
-      content={
-        popupContent ? popupContent : name ? `${name} ${address}` : address
-      }
-      size="mini"
-      disabled={!popup || disabledPopup}
-      trigger={<TextUsername noLink={noLink}>{displayName}</TextUsername>}
-    />
+    <SpecialAccountWrapper>
+      {knownAddr && (
+        <Tooltip tooltipContent={<Text>Special account</Text>}>
+          <img src={IdentitySpecial} alt="special" width={12} height={12} />
+        </Tooltip>
+      )}
+      <Popup
+        content={
+          popupContent ? popupContent : name ? `${name} ${address}` : address
+        }
+        size="mini"
+        disabled={!popup || disabledPopup}
+        trigger={<TextUsername noLink={noLink}>{displayName}</TextUsername>}
+      />
+    </SpecialAccountWrapper>
   );
 };
 
diff --git a/site/src/utils/knownAddr.js b/site/src/utils/knownAddr.js
new file mode 100644
index 000000000..61ed6bf51
--- /dev/null
+++ b/site/src/utils/knownAddr.js
@@ -0,0 +1,60 @@
+import { TypeRegistry } from "@polkadot/types/create";
+import {
+  formatNumber,
+  isCodec,
+  stringToU8a,
+  u8aEmpty,
+  u8aEq,
+  u8aToBn,
+} from "@polkadot/util";
+
+const registry = new TypeRegistry();
+
+function createAllMatcher(prefix, name) {
+  const test = registry.createType(
+    "AccountId",
+    stringToU8a(prefix.padEnd(32, "\0")),
+  );
+
+  return (addr) => (test.eq(addr) ? name : null);
+}
+
+function createNumMatcher(prefix, name, add) {
+  const test = stringToU8a(prefix);
+
+  // 4 bytes for u32 (more should not hurt, LE)
+  const minLength = test.length + 4;
+
+  return (addr) => {
+    try {
+      const u8a = isCodec(addr)
+        ? addr.toU8a()
+        : registry.createType("AccountId", addr).toU8a();
+
+      return u8a.length >= minLength &&
+        u8aEq(test, u8a.subarray(0, test.length)) &&
+        u8aEmpty(u8a.subarray(minLength))
+        ? `${name} ${formatNumber(
+            u8aToBn(u8a.subarray(test.length, minLength)),
+          )}${add ? ` (${add})` : ""}`
+        : null;
+    } catch (e) {
+      return null;
+    }
+  };
+}
+
+export const KNOWN_ADDR_MATCHERS = [
+  createAllMatcher("modlpy/socie", "Society"),
+  createAllMatcher("modlpy/trsry", "Treasury"),
+  createAllMatcher("modlpy/xcmch", "XCM"),
+  createNumMatcher("modlpy/cfund", "Crowdloan"),
+  // Substrate master
+  createNumMatcher("modlpy/npols\x00", "Pool", "Stash"),
+  createNumMatcher("modlpy/npols\x01", "Pool", "Reward"),
+  // Westend
+  createNumMatcher("modlpy/nopls\x00", "Pool", "Stash"),
+  createNumMatcher("modlpy/nopls\x01", "Pool", "Reward"),
+  createNumMatcher("para", "Parachain"),
+  createNumMatcher("sibl", "Sibling"),
+];