diff --git a/src/main/java/org/folio/service/impl/ConsortiumServiceImpl.java b/src/main/java/org/folio/service/impl/ConsortiumServiceImpl.java
index 9f6e73b2..cf2f5d3c 100644
--- a/src/main/java/org/folio/service/impl/ConsortiumServiceImpl.java
+++ b/src/main/java/org/folio/service/impl/ConsortiumServiceImpl.java
@@ -59,7 +59,7 @@ private TenantContext getTenantContext(String tenantId) {
       log.info("getTenantContext:: cache miss for tenant {}", tenantId);
       tenantContext = Optional.ofNullable(userTenantsService.findFirstUserTenant())
         .map(userTenant -> new TenantContext(tenantId, userTenant))
-        .orElseThrow();
+        .orElseThrow(() -> new IllegalStateException("Failed to fetch user tenant"));
       log.info("getTenantContext:: populating cache: {}", tenantContext);
       CACHE.put(tenantId, tenantContext);
     }
diff --git a/src/test/java/org/folio/service/ConsortiumServiceTest.java b/src/test/java/org/folio/service/ConsortiumServiceTest.java
new file mode 100644
index 00000000..201f1295
--- /dev/null
+++ b/src/test/java/org/folio/service/ConsortiumServiceTest.java
@@ -0,0 +1,139 @@
+package org.folio.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
+
+import org.folio.domain.dto.UserTenant;
+import org.folio.service.impl.ConsortiumServiceImpl;
+import org.folio.spring.FolioExecutionContext;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+@ExtendWith(MockitoExtension.class)
+class ConsortiumServiceTest {
+
+  private static final String CENTRAL_TENANT_ID = "central_tenant";
+  private static final String CONSORTIUM_ID = "5f3febe1-b2a3-45cd-8606-4b160f24575b";
+  private static final UserTenant MOCK_USER_TENANT = new UserTenant()
+    .centralTenantId(CENTRAL_TENANT_ID)
+    .consortiumId(CONSORTIUM_ID);
+
+  @Mock
+  private UserTenantsService userTenantsService;
+
+  @Mock
+  private FolioExecutionContext folioExecutionContext;
+
+  @InjectMocks
+  private ConsortiumServiceImpl consortiumService;
+
+
+  @BeforeEach
+  void setUp() {
+    ConsortiumServiceImpl.clearCache();
+  }
+
+  @Test
+  void getCurrentTenantIdReturnsTenantIdFromFolioContext() {
+    mockFolioExecutionContext("test_tenant");
+    assertEquals("test_tenant", consortiumService.getCurrentTenantId());
+  }
+
+  @Test
+  void tenantContextIsResolvedAndCached() {
+    mockFolioExecutionContext("tenant1");
+    mockUserTenant(MOCK_USER_TENANT);
+
+    // first invocation, cache is empty
+    assertEquals(CENTRAL_TENANT_ID, consortiumService.getCentralTenantId());
+    assertEquals(CONSORTIUM_ID, consortiumService.getCurrentConsortiumId());
+    verify(userTenantsService, times(1)).findFirstUserTenant();
+
+    // second invocation, tenant context is resolved from cache
+    assertEquals(CENTRAL_TENANT_ID, consortiumService.getCentralTenantId());
+    assertEquals(CONSORTIUM_ID, consortiumService.getCurrentConsortiumId());
+    verifyNoMoreInteractions(userTenantsService);
+
+    // same steps for a different tenant
+    mockFolioExecutionContext("tenant2");
+    mockUserTenant(MOCK_USER_TENANT);
+
+    assertEquals(CENTRAL_TENANT_ID, consortiumService.getCentralTenantId());
+    assertEquals(CONSORTIUM_ID, consortiumService.getCurrentConsortiumId());
+    verify(userTenantsService, times(2)).findFirstUserTenant();
+
+    assertEquals(CENTRAL_TENANT_ID, consortiumService.getCentralTenantId());
+    assertEquals(CONSORTIUM_ID, consortiumService.getCurrentConsortiumId());
+    verifyNoMoreInteractions(userTenantsService);
+  }
+
+  @Test
+  void getCentralTenantIdThrowsExceptionIfUserTenantIsNotFound() {
+    mockFolioExecutionContext(CENTRAL_TENANT_ID);
+    mockUserTenant(null);
+    assertThrows(IllegalStateException.class, () -> consortiumService.getCentralTenantId());
+  }
+
+  @Test
+  void isCurrentTenantCentralReturnsTrue() {
+    mockFolioExecutionContext(CENTRAL_TENANT_ID);
+    mockUserTenant(MOCK_USER_TENANT);
+    assertTrue(consortiumService.isCurrentTenantCentral());
+  }
+
+  @Test
+  void isCurrentTenantCentralReturnsFalseWhenTenantIdsDoNotMatch() {
+    mockFolioExecutionContext("random_tenant");
+    mockUserTenant(MOCK_USER_TENANT);
+    assertFalse(consortiumService.isCurrentTenantCentral());
+  }
+
+  @Test
+  void isCurrentTenantCentralThrowsExceptionWhenCentralTenantIdIsNotFound() {
+    mockFolioExecutionContext(CENTRAL_TENANT_ID);
+    mockUserTenant(null);
+    assertThrows(IllegalStateException.class, () -> consortiumService.isCurrentTenantCentral());
+  }
+  
+  @Test
+  void isCentralTenantReturnsTrue() {
+    mockFolioExecutionContext("random_tenant");
+    mockUserTenant(MOCK_USER_TENANT);
+    assertTrue(consortiumService.isCentralTenant(CENTRAL_TENANT_ID));
+  }
+
+  @Test
+  void isCentralTenantReturnsFalseIfTenantIdsDoNotMatch() {
+    mockFolioExecutionContext("random_tenant");
+    mockUserTenant(MOCK_USER_TENANT);
+    assertFalse(consortiumService.isCentralTenant("random_tenant"));
+  }
+
+  @Test
+  void isCentralTenantThrowsExceptionIfCentralTenantIdIsNotFound() {
+    mockFolioExecutionContext("random_tenant");
+    mockUserTenant(null);
+    assertThrows(IllegalStateException.class, () -> consortiumService.isCentralTenant(CENTRAL_TENANT_ID));
+  }
+
+  private void mockUserTenant(UserTenant userTenant) {
+    when(userTenantsService.findFirstUserTenant())
+      .thenReturn(userTenant);
+  }
+
+  private void mockFolioExecutionContext(String tenantId) {
+    when(folioExecutionContext.getTenantId())
+      .thenReturn(tenantId);
+  }
+
+}
\ No newline at end of file