diff --git a/.changeset/late-news-chew.md b/.changeset/late-news-chew.md
new file mode 100644
index 0000000000..5552caf8fb
--- /dev/null
+++ b/.changeset/late-news-chew.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-tech-radar': patch
+---
+
+Added `SearchBar` to allow filtering and a scroll bar to display hidden tech
diff --git a/plugins/tech-radar/api-report.md b/plugins/tech-radar/api-report.md
index c02c7ee519..452b241937 100644
--- a/plugins/tech-radar/api-report.md
+++ b/plugins/tech-radar/api-report.md
@@ -107,6 +107,8 @@ export interface TechRadarComponentProps {
   // (undocumented)
   id?: string;
   // (undocumented)
+  searchText?: string;
+  // (undocumented)
   svgProps?: object;
   // (undocumented)
   width: number;
diff --git a/plugins/tech-radar/src/api.ts b/plugins/tech-radar/src/api.ts
index 34307a1697..2497834e22 100644
--- a/plugins/tech-radar/src/api.ts
+++ b/plugins/tech-radar/src/api.ts
@@ -81,4 +81,5 @@ export interface TechRadarComponentProps {
   width: number;
   height: number;
   svgProps?: object;
+  searchText?: string;
 }
diff --git a/plugins/tech-radar/src/components/RadarComponent.tsx b/plugins/tech-radar/src/components/RadarComponent.tsx
index faa2763f17..9abb200792 100644
--- a/plugins/tech-radar/src/components/RadarComponent.tsx
+++ b/plugins/tech-radar/src/components/RadarComponent.tsx
@@ -14,19 +14,19 @@
  * limitations under the License.
  */
 
+import { Progress } from '@backstage/core-components';
+import { errorApiRef, useApi } from '@backstage/core-plugin-api';
 import React, { useEffect } from 'react';
 import { useAsync } from 'react-use';
-import Radar from '../components/Radar';
 import {
+  RadarEntry,
   techRadarApiRef,
   TechRadarComponentProps,
   TechRadarLoaderResponse,
 } from '../api';
+import Radar from '../components/Radar';
 import { Entry } from '../utils/types';
 
-import { Progress } from '@backstage/core-components';
-import { useApi, errorApiRef } from '@backstage/core-plugin-api';
-
 const useTechRadarLoader = (id: string | undefined) => {
   const errorApi = useApi(errorApiRef);
   const techRadarApi = useApi(techRadarApiRef);
@@ -45,24 +45,44 @@ const useTechRadarLoader = (id: string | undefined) => {
   return { loading, value, error };
 };
 
+function matchFilter(filter?: string): (entry: RadarEntry) => boolean {
+  const terms = filter
+    ?.toLocaleLowerCase('en-US')
+    .split(/\s/)
+    .map(e => e.trim())
+    .filter(Boolean);
+
+  if (!terms?.length) {
+    return () => true;
+  }
+
+  return entry => {
+    const text = `${entry.title} ${
+      entry.timeline[0]?.description || ''
+    }`.toLocaleLowerCase('en-US');
+    return terms.every(term => text.includes(term));
+  };
+}
+
 const RadarComponent = (props: TechRadarComponentProps): JSX.Element => {
   const { loading, error, value: data } = useTechRadarLoader(props.id);
 
   const mapToEntries = (
-    loaderResponse: TechRadarLoaderResponse | undefined,
+    loaderResponse: TechRadarLoaderResponse,
   ): Array<Entry> => {
-    return loaderResponse!.entries.map(entry => {
-      return {
+    return loaderResponse.entries
+      .filter(matchFilter(props.searchText))
+      .map(entry => ({
         id: entry.key,
-        quadrant: loaderResponse!.quadrants.find(q => q.id === entry.quadrant)!,
+        quadrant: loaderResponse.quadrants.find(q => q.id === entry.quadrant)!,
         title: entry.title,
-        ring: loaderResponse!.rings.find(
+        ring: loaderResponse.rings.find(
           r => r.id === entry.timeline[0].ringId,
         )!,
         timeline: entry.timeline.map(e => {
           return {
             date: e.date,
-            ring: loaderResponse!.rings.find(a => a.id === e.ringId)!,
+            ring: loaderResponse.rings.find(a => a.id === e.ringId)!,
             description: e.description,
             moved: e.moved,
           };
@@ -70,18 +90,17 @@ const RadarComponent = (props: TechRadarComponentProps): JSX.Element => {
         moved: entry.timeline[0].moved,
         description: entry.description || entry.timeline[0].description,
         url: entry.url,
-      };
-    });
+      }));
   };
 
   return (
     <>
       {loading && <Progress />}
-      {!loading && !error && (
+      {!loading && !error && data && (
         <Radar
           {...props}
-          rings={data!.rings}
-          quadrants={data!.quadrants}
+          rings={data.rings}
+          quadrants={data.quadrants}
           entries={mapToEntries(data)}
         />
       )}
diff --git a/plugins/tech-radar/src/components/RadarLegend/RadarLegend.tsx b/plugins/tech-radar/src/components/RadarLegend/RadarLegend.tsx
index b9bc6a59a6..705dc9f47b 100644
--- a/plugins/tech-radar/src/components/RadarLegend/RadarLegend.tsx
+++ b/plugins/tech-radar/src/components/RadarLegend/RadarLegend.tsx
@@ -13,10 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import React from 'react';
 import { makeStyles, Theme } from '@material-ui/core';
-import type { Quadrant, Ring, Entry } from '../../utils/types';
+import React from 'react';
 import { WithLink } from '../../utils/components';
+import type { Entry, Quadrant, Ring } from '../../utils/types';
 import { RadarDescription } from '../RadarDescription';
 
 type Segments = {
@@ -32,17 +32,21 @@ export type Props = {
 };
 
 const useStyles = makeStyles<Theme>(theme => ({
+  quadrantLegend: {
+    overflowY: 'auto',
+    scrollbarWidth: 'thin',
+  },
   quadrant: {
     height: '100%',
     width: '100%',
-    overflow: 'hidden',
+    scrollbarWidth: 'thin',
     pointerEvents: 'none',
   },
   quadrantHeading: {
     pointerEvents: 'none',
     userSelect: 'none',
     marginTop: 0,
-    marginBottom: theme.spacing(8 / (18 * 0.375)),
+    marginBottom: theme.spacing(2),
     fontSize: '18px',
   },
   rings: {
@@ -53,12 +57,16 @@ const useStyles = makeStyles<Theme>(theme => ({
     pageBreakInside: 'avoid',
     '-webkit-column-break-inside': 'avoid',
     fontSize: '12px',
+    marginBottom: theme.spacing(2),
+  },
+  ringEmpty: {
+    color: theme.palette.text.secondary,
   },
   ringHeading: {
     pointerEvents: 'none',
     userSelect: 'none',
     marginTop: 0,
-    marginBottom: theme.spacing(8 / (12 * 0.375)),
+    marginBottom: theme.spacing(1),
     fontSize: '12px',
     fontWeight: 800,
   },
@@ -172,7 +180,7 @@ const RadarLegend = (props: Props): JSX.Element => {
       <div data-testid="radar-ring" key={ring.id} className={classes.ring}>
         <h3 className={classes.ringHeading}>{ring.name}</h3>
         {entries.length === 0 ? (
-          <p>(empty)</p>
+          <p className={classes.ringEmpty}>(empty)</p>
         ) : (
           <ol className={classes.ringList}>
             {entries.map(entry => (
@@ -221,6 +229,7 @@ const RadarLegend = (props: Props): JSX.Element => {
         y={quadrant.legendY}
         width={quadrant.legendWidth}
         height={quadrant.legendHeight}
+        className={classes.quadrantLegend}
         data-testid="radar-quadrant"
       >
         <div className={classes.quadrant}>
diff --git a/plugins/tech-radar/src/components/RadarPage.tsx b/plugins/tech-radar/src/components/RadarPage.tsx
index 2393ccc9c6..8ae7d17fd0 100644
--- a/plugins/tech-radar/src/components/RadarPage.tsx
+++ b/plugins/tech-radar/src/components/RadarPage.tsx
@@ -14,17 +14,17 @@
  * limitations under the License.
  */
 
-import React from 'react';
-import { Grid, makeStyles } from '@material-ui/core';
-import RadarComponent from '../components/RadarComponent';
-import { TechRadarComponentProps } from '../api';
 import {
   Content,
   ContentHeader,
-  Page,
   Header,
+  Page,
   SupportButton,
 } from '@backstage/core-components';
+import { Grid, Input, makeStyles } from '@material-ui/core';
+import React from 'react';
+import { TechRadarComponentProps } from '../api';
+import RadarComponent from '../components/RadarComponent';
 
 const useStyles = makeStyles(() => ({
   overflowXScroll: {
@@ -45,11 +45,19 @@ export const RadarPage = ({
   ...props
 }: TechRadarPageProps): JSX.Element => {
   const classes = useStyles();
+  const [searchText, setSearchText] = React.useState('');
+
   return (
     <Page themeId="tool">
       <Header title={title} subtitle={subtitle} />
       <Content className={classes.overflowXScroll}>
         <ContentHeader title={pageTitle}>
+          <Input
+            id="tech-radar-filter"
+            type="search"
+            placeholder="Filter"
+            onChange={e => setSearchText(e.target.value)}
+          />
           <SupportButton>
             This is used for visualizing the official guidelines of different
             areas of software development such as languages, frameworks,
@@ -58,7 +66,7 @@ export const RadarPage = ({
         </ContentHeader>
         <Grid container spacing={3} direction="row">
           <Grid item xs={12} sm={6} md={4}>
-            <RadarComponent {...props} />
+            <RadarComponent searchText={searchText} {...props} />
           </Grid>
         </Grid>
       </Content>