diff --git a/.changeset/brave-singers-burn.md b/.changeset/brave-singers-burn.md
new file mode 100644
index 0000000000000..e8ccfb42e73b0
--- /dev/null
+++ b/.changeset/brave-singers-burn.md
@@ -0,0 +1,13 @@
+---
+'@backstage/plugin-catalog-backend': patch
+---
+
+The following processors now properly accept an `ScmIntegrationRegistry` (an
+interface) instead of an `ScmIntegrations` (which is a concrete class).
+
+- `AzureDevOpsDiscoveryProcessor`
+- `CodeOwnersProcessor`
+- `GitLabDiscoveryProcessor`
+- `GithubDiscoveryProcessor`
+- `GithubMultiOrgReaderProcessor`
+- `GithubOrgReaderProcessor`
diff --git a/plugins/catalog-backend/api-report.md b/plugins/catalog-backend/api-report.md
index 2cc8f397c1ebf..b4984fb8c7191 100644
--- a/plugins/catalog-backend/api-report.md
+++ b/plugins/catalog-backend/api-report.md
@@ -36,7 +36,6 @@ import { PluginEndpointDiscovery } from '@backstage/backend-common';
 import { ResourceEntityV1alpha1 } from '@backstage/catalog-model';
 import { Router } from 'express';
 import { ScmIntegrationRegistry } from '@backstage/integration';
-import { ScmIntegrations } from '@backstage/integration';
 import { TokenManager } from '@backstage/backend-common';
 import { UrlReader } from '@backstage/backend-common';
 import { Validators } from '@backstage/catalog-model';
@@ -177,7 +176,10 @@ export class AwsS3DiscoveryProcessor implements CatalogProcessor {
 //
 // @public
 export class AzureDevOpsDiscoveryProcessor implements CatalogProcessor {
-  constructor(options: { integrations: ScmIntegrations; logger: Logger_2 });
+  constructor(options: {
+    integrations: ScmIntegrationRegistry;
+    logger: Logger_2;
+  });
   // (undocumented)
   static fromConfig(
     config: Config,
@@ -464,7 +466,7 @@ export type CatalogRulesEnforcer = {
 // @public (undocumented)
 export class CodeOwnersProcessor implements CatalogProcessor {
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger_2;
     reader: UrlReader;
   });
@@ -750,7 +752,7 @@ function generalError(
 // @public
 export class GithubDiscoveryProcessor implements CatalogProcessor {
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger_2;
     githubCredentialsProvider?: GithubCredentialsProvider;
   });
@@ -773,7 +775,7 @@ export class GithubDiscoveryProcessor implements CatalogProcessor {
 // @alpha
 export class GithubMultiOrgReaderProcessor implements CatalogProcessor {
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger_2;
     orgs: GithubMultiOrgConfig;
     githubCredentialsProvider?: GithubCredentialsProvider;
@@ -828,7 +830,7 @@ export class GitHubOrgEntityProvider implements EntityProvider {
 // @public
 export class GithubOrgReaderProcessor implements CatalogProcessor {
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger_2;
     githubCredentialsProvider?: GithubCredentialsProvider;
   });
diff --git a/plugins/catalog-backend/src/ingestion/processors/AzureDevOpsDiscoveryProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/AzureDevOpsDiscoveryProcessor.ts
index aeac64f54d56e..4f5df6f656765 100644
--- a/plugins/catalog-backend/src/ingestion/processors/AzureDevOpsDiscoveryProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/AzureDevOpsDiscoveryProcessor.ts
@@ -16,7 +16,10 @@
 
 import { LocationSpec } from '@backstage/catalog-model';
 import { Config } from '@backstage/config';
-import { ScmIntegrations } from '@backstage/integration';
+import {
+  ScmIntegrationRegistry,
+  ScmIntegrations,
+} from '@backstage/integration';
 import { Logger } from 'winston';
 import * as results from './results';
 import { CatalogProcessor, CatalogProcessorEmit } from './types';
@@ -37,7 +40,7 @@ import { codeSearch } from './azure';
  *    target: https://dev.azure.com/org/project/_git/repo
  **/
 export class AzureDevOpsDiscoveryProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly logger: Logger;
 
   static fromConfig(config: Config, options: { logger: Logger }) {
@@ -49,7 +52,10 @@ export class AzureDevOpsDiscoveryProcessor implements CatalogProcessor {
     });
   }
 
-  constructor(options: { integrations: ScmIntegrations; logger: Logger }) {
+  constructor(options: {
+    integrations: ScmIntegrationRegistry;
+    logger: Logger;
+  }) {
     this.integrations = options.integrations;
     this.logger = options.logger;
   }
diff --git a/plugins/catalog-backend/src/ingestion/processors/CodeOwnersProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/CodeOwnersProcessor.ts
index a70aa6d1a90d3..f358abf7e9a94 100644
--- a/plugins/catalog-backend/src/ingestion/processors/CodeOwnersProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/CodeOwnersProcessor.ts
@@ -17,7 +17,10 @@
 import { UrlReader } from '@backstage/backend-common';
 import { Entity, LocationSpec } from '@backstage/catalog-model';
 import { Config } from '@backstage/config';
-import { ScmIntegrations } from '@backstage/integration';
+import {
+  ScmIntegrationRegistry,
+  ScmIntegrations,
+} from '@backstage/integration';
 import { Logger } from 'winston';
 import { findCodeOwnerByTarget } from './codeowners';
 import { CatalogProcessor } from './types';
@@ -35,7 +38,7 @@ const ALLOWED_LOCATION_TYPES = [
 ];
 
 export class CodeOwnersProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly logger: Logger;
   private readonly reader: UrlReader;
 
@@ -52,7 +55,7 @@ export class CodeOwnersProcessor implements CatalogProcessor {
   }
 
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger;
     reader: UrlReader;
   }) {
diff --git a/plugins/catalog-backend/src/ingestion/processors/GitLabDiscoveryProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/GitLabDiscoveryProcessor.ts
index fabf3a1136baf..cc0113bfbefd4 100644
--- a/plugins/catalog-backend/src/ingestion/processors/GitLabDiscoveryProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/GitLabDiscoveryProcessor.ts
@@ -16,7 +16,10 @@
 
 import { LocationSpec } from '@backstage/catalog-model';
 import { Config } from '@backstage/config';
-import { ScmIntegrations } from '@backstage/integration';
+import {
+  ScmIntegrationRegistry,
+  ScmIntegrations,
+} from '@backstage/integration';
 import { Logger } from 'winston';
 import * as results from './results';
 import { CatalogProcessor, CatalogProcessorEmit } from './types';
@@ -31,7 +34,7 @@ import {
  * Extracts repositories out of an GitLab instance.
  */
 export class GitLabDiscoveryProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly logger: Logger;
   private readonly cache: CacheClient;
 
@@ -48,7 +51,7 @@ export class GitLabDiscoveryProcessor implements CatalogProcessor {
   }
 
   private constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     pluginCache: PluginCacheManager;
     logger: Logger;
   }) {
diff --git a/plugins/catalog-backend/src/ingestion/processors/GithubDiscoveryProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/GithubDiscoveryProcessor.ts
index 3196c4e16135d..3cb73f0181858 100644
--- a/plugins/catalog-backend/src/ingestion/processors/GithubDiscoveryProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/GithubDiscoveryProcessor.ts
@@ -19,6 +19,7 @@ import { Config } from '@backstage/config';
 import {
   DefaultGithubCredentialsProvider,
   GithubCredentialsProvider,
+  ScmIntegrationRegistry,
   ScmIntegrations,
 } from '@backstage/integration';
 import { graphql } from '@octokit/graphql';
@@ -42,7 +43,7 @@ import { CatalogProcessor, CatalogProcessorEmit } from './types';
  *    target: https://github.com/backstage/*\/blob/main/catalog-info.yaml
  **/
 export class GithubDiscoveryProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly logger: Logger;
   private readonly githubCredentialsProvider: GithubCredentialsProvider;
 
@@ -62,7 +63,7 @@ export class GithubDiscoveryProcessor implements CatalogProcessor {
   }
 
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger;
     githubCredentialsProvider?: GithubCredentialsProvider;
   }) {
diff --git a/plugins/catalog-backend/src/ingestion/processors/GithubMultiOrgReaderProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/GithubMultiOrgReaderProcessor.ts
index dd705ad691be9..7d10428494381 100644
--- a/plugins/catalog-backend/src/ingestion/processors/GithubMultiOrgReaderProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/GithubMultiOrgReaderProcessor.ts
@@ -21,6 +21,7 @@ import {
   GithubAppCredentialsMux,
   GithubCredentialsProvider,
   GitHubIntegrationConfig,
+  ScmIntegrationRegistry,
   ScmIntegrations,
 } from '@backstage/integration';
 import { graphql } from '@octokit/graphql';
@@ -42,7 +43,7 @@ import { buildOrgHierarchy } from './util/org';
  * Be aware that this processor may not be compatible with future org structures in the catalog.
  */
 export class GithubMultiOrgReaderProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly orgs: GithubMultiOrgConfig;
   private readonly logger: Logger;
   private readonly githubCredentialsProvider: GithubCredentialsProvider;
@@ -65,7 +66,7 @@ export class GithubMultiOrgReaderProcessor implements CatalogProcessor {
   }
 
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger;
     orgs: GithubMultiOrgConfig;
     githubCredentialsProvider?: GithubCredentialsProvider;
diff --git a/plugins/catalog-backend/src/ingestion/processors/GithubOrgReaderProcessor.ts b/plugins/catalog-backend/src/ingestion/processors/GithubOrgReaderProcessor.ts
index 474d08feee9c8..dbb7b98e87647 100644
--- a/plugins/catalog-backend/src/ingestion/processors/GithubOrgReaderProcessor.ts
+++ b/plugins/catalog-backend/src/ingestion/processors/GithubOrgReaderProcessor.ts
@@ -18,6 +18,7 @@ import { LocationSpec } from '@backstage/catalog-model';
 import { Config } from '@backstage/config';
 import {
   GithubCredentialType,
+  ScmIntegrationRegistry,
   ScmIntegrations,
   GithubCredentialsProvider,
   DefaultGithubCredentialsProvider,
@@ -39,7 +40,7 @@ type GraphQL = typeof graphql;
  * Extracts teams and users out of a GitHub org.
  */
 export class GithubOrgReaderProcessor implements CatalogProcessor {
-  private readonly integrations: ScmIntegrations;
+  private readonly integrations: ScmIntegrationRegistry;
   private readonly logger: Logger;
   private readonly githubCredentialsProvider: GithubCredentialsProvider;
 
@@ -59,7 +60,7 @@ export class GithubOrgReaderProcessor implements CatalogProcessor {
   }
 
   constructor(options: {
-    integrations: ScmIntegrations;
+    integrations: ScmIntegrationRegistry;
     logger: Logger;
     githubCredentialsProvider?: GithubCredentialsProvider;
   }) {