diff --git a/packages/typescript-estree/src/parseSettings/inferSingleRun.ts b/packages/typescript-estree/src/parseSettings/inferSingleRun.ts
index 8007e6ccd66..36503db95a6 100644
--- a/packages/typescript-estree/src/parseSettings/inferSingleRun.ts
+++ b/packages/typescript-estree/src/parseSettings/inferSingleRun.ts
@@ -24,7 +24,7 @@ export function inferSingleRun(options: TSESTreeOptions | undefined): boolean {
 
   if (
     // single-run implies type-aware linting - no projects means we can't be in single-run mode
-    options?.project == null ||
+    (options?.project == null && options?.projectService == null) ||
     // programs passed via options means the user should be managing the programs, so we shouldn't
     // be creating our own single-run programs accidentally
     options.programs != null
diff --git a/packages/typescript-estree/tests/lib/inferSingleRun.test.ts b/packages/typescript-estree/tests/lib/inferSingleRun.test.ts
index 2fe53da8907..99089600d40 100644
--- a/packages/typescript-estree/tests/lib/inferSingleRun.test.ts
+++ b/packages/typescript-estree/tests/lib/inferSingleRun.test.ts
@@ -157,4 +157,12 @@ describe(inferSingleRun, () => {
 
     expect(actual).toBe(false);
   });
+
+  it('returns true for project service in single run', () => {
+    vi.stubEnv('CI', 'true');
+    // Do not set `project: true` if `projectService: true`
+    const actual = inferSingleRun({ projectService: true });
+
+    expect(actual).toBe(true);
+  });
 });