diff --git a/.changeset/metal-worms-flash.md b/.changeset/metal-worms-flash.md
new file mode 100644
index 0000000000..dd06abdb34
--- /dev/null
+++ b/.changeset/metal-worms-flash.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-catalog-backend': patch
+---
+
+Provide support for Bitbucket servers with custom BaseURLs.
diff --git a/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.test.ts b/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.test.ts
index 3f8d0ba0fb..7ace995fda 100644
--- a/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.test.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.test.ts
@@ -29,7 +29,10 @@ import { setupServer } from 'msw/node';
 
 const server = setupServer();
 
-function setupStubs(projects: any[]) {
+function setupStubs(
+  projects: any[],
+  bitbucketBaseUrl = `https://bitbucket.mycompany.com`,
+) {
   function pagedResponse(values: any): PagedResponse<any> {
     return {
       values: values,
@@ -42,7 +45,7 @@ function setupStubs(projects: any[]) {
     repos: string[],
   ): RequestHandler<any, any> {
     return rest.get(
-      `https://bitbucket.mycompany.com/api/rest/1.0/projects/${project}/repos`,
+      `${bitbucketBaseUrl}/api/rest/1.0/projects/${project}/repos`,
       (_, res, ctx) => {
         const response = [];
         for (const repo of repos) {
@@ -51,7 +54,7 @@ function setupStubs(projects: any[]) {
             links: {
               self: [
                 {
-                  href: `https://bitbucket.mycompany.com/projects/${project}/repos/${repo}/browse`,
+                  href: `${bitbucketBaseUrl}/projects/${project}/repos/${repo}/browse`,
                 },
               ],
             },
@@ -63,20 +66,17 @@ function setupStubs(projects: any[]) {
   }
 
   server.use(
-    rest.get(
-      `https://bitbucket.mycompany.com/api/rest/1.0/projects`,
-      (_, res, ctx) => {
-        return res(
-          ctx.json(
-            pagedResponse(
-              projects.map(p => {
-                return { key: p.key };
-              }),
-            ),
+    rest.get(`${bitbucketBaseUrl}/api/rest/1.0/projects`, (_, res, ctx) => {
+      return res(
+        ctx.json(
+          pagedResponse(
+            projects.map(p => {
+              return { key: p.key };
+            }),
           ),
-        );
-      },
-    ),
+        ),
+      );
+    }),
   );
 
   for (const project of projects) {
@@ -249,6 +249,30 @@ describe('BitbucketDiscoveryProcessor', () => {
         optional: true,
       });
     });
+
+    it('output repositories by target search ref', async () => {
+      setupStubs([{ key: 'demo', repos: ['demo'] }]);
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target:
+          'https://bitbucket.mycompany.com/projects/demo/repos/demo/catalog.yaml?ref=branch-name',
+      };
+
+      const emitter = jest.fn();
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/projects/demo/repos/demo/browse/catalog.yaml?ref=branch-name',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+
     it('filter unrelated repositories', async () => {
       setupStubs([{ key: 'backstage', repos: ['test', 'abctest', 'testxyz'] }]);
       const location: LocationSpec = {
@@ -302,6 +326,177 @@ describe('BitbucketDiscoveryProcessor', () => {
     });
   });
 
+  describe('handles organisation repositories with a custom baseURL', () => {
+    const processor = BitbucketDiscoveryProcessor.fromConfig(
+      new ConfigReader({
+        integrations: {
+          bitbucket: [
+            {
+              host: 'bitbucket.mycompany.com',
+              token: 'blob',
+              apiBaseUrl:
+                'https://bitbucket.mycompany.com/custom-path/api/rest/1.0',
+            },
+          ],
+        },
+      }),
+      { logger: getVoidLogger() },
+    );
+
+    it('output all repositories', async () => {
+      setupStubs(
+        [
+          { key: 'backstage', repos: ['backstage'] },
+          { key: 'demo', repos: ['demo'] },
+        ],
+        'https://bitbucket.mycompany.com/custom-path',
+      );
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target:
+          'https://bitbucket.mycompany.com/custom-path/projects/*/repos/*/catalog.yaml',
+      };
+
+      const emitter = jest.fn();
+
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/backstage/browse/catalog.yaml',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/demo/repos/demo/browse/catalog.yaml',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+
+    it('output repositories with wildcards', async () => {
+      setupStubs(
+        [
+          { key: 'backstage', repos: ['backstage', 'techdocs-cli'] },
+          { key: 'demo', repos: ['demo'] },
+        ],
+        'https://bitbucket.mycompany.com/custom-path',
+      );
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target:
+          'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/techdocs-*/catalog.yaml',
+      };
+
+      const emitter = jest.fn();
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/techdocs-cli/browse/catalog.yaml',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+
+    it('output repositories by target search ref', async () => {
+      setupStubs(
+        [{ key: 'demo', repos: ['demo'] }],
+        'https://bitbucket.mycompany.com/custom-path',
+      );
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target:
+          'https://bitbucket.mycompany.com/custom-path/projects/demo/repos/demo/catalog.yaml?ref=branch-name',
+      };
+
+      const emitter = jest.fn();
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/demo/repos/demo/browse/catalog.yaml?ref=branch-name',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+
+    it('filter unrelated repositories', async () => {
+      setupStubs(
+        [{ key: 'backstage', repos: ['test', 'abctest', 'testxyz'] }],
+        'https://bitbucket.mycompany.com/custom-path',
+      );
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target:
+          'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/test/catalog.yaml',
+      };
+
+      const emitter = jest.fn();
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/test/browse/catalog.yaml',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+
+    it.each`
+      target
+      ${'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/*'}
+      ${'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/*/'}
+      ${'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/techdocs-*/'}
+    `("target '$target' adds default path to catalog", async ({ target }) => {
+      setupStubs(
+        [{ key: 'backstage', repos: ['techdocs-cli'] }],
+        'https://bitbucket.mycompany.com/custom-path',
+      );
+
+      const location: LocationSpec = {
+        type: 'bitbucket-discovery',
+        target: target,
+      };
+
+      const emitter = jest.fn();
+      await processor.readLocation(location, false, emitter);
+
+      expect(emitter).toHaveBeenCalledTimes(1);
+      expect(emitter).toHaveBeenCalledWith({
+        type: 'location',
+        location: {
+          type: 'url',
+          target:
+            'https://bitbucket.mycompany.com/custom-path/projects/backstage/repos/techdocs-cli/browse/catalog-info.yaml',
+          presence: 'optional',
+        },
+        optional: true,
+      });
+    });
+  });
+
   describe('handles cloud repositories', () => {
     const processor = BitbucketDiscoveryProcessor.fromConfig(
       new ConfigReader({
diff --git a/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.ts
index 6a09694ae8..f08888d1ab 100644
--- a/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/BitbucketDiscoveryProcessor.ts
@@ -230,14 +230,18 @@ function parseUrl(urlString: string): {
   catalogPath: string;
 } {
   const url = new URL(urlString);
-  const path = url.pathname.substr(1).split('/');
+  const indexOfProjectSegment =
+    url.pathname.toLowerCase().indexOf('/projects/') + 1;
+  const path = url.pathname.substr(indexOfProjectSegment).split('/');
 
   // /projects/backstage/repos/techdocs-*/catalog-info.yaml
   if (path.length > 3 && path[1].length && path[3].length) {
     return {
       projectSearchPath: escapeRegExp(decodeURIComponent(path[1])),
       repoSearchPath: escapeRegExp(decodeURIComponent(path[3])),
-      catalogPath: `/${decodeURIComponent(path.slice(4).join('/'))}`,
+      catalogPath: `/${decodeURIComponent(
+        path.slice(4).join('/') + url.search,
+      )}`,
     };
   }