diff --git a/backend/src/main/kotlin/org/loculus/backend/controller/DashboardController.kt b/backend/src/main/kotlin/org/loculus/backend/controller/DashboardController.kt
new file mode 100644
index 0000000000..1a72e6a39b
--- /dev/null
+++ b/backend/src/main/kotlin/org/loculus/backend/controller/DashboardController.kt
@@ -0,0 +1,31 @@
+package org.loculus.backend.controller
+
+import io.swagger.v3.oas.annotations.Operation
+import io.swagger.v3.oas.annotations.security.SecurityRequirement
+import org.loculus.backend.service.submission.PipelineVersionDashboardService
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RestController
+
+data class PipelineVersionStats(
+    val pipelineVersion: Long,
+    val sequenceCount: Long,
+    val isCurrentVersion: Boolean
+)
+
+data class PipelineVersionDashboard(
+    val stats: List<PipelineVersionStats>,
+    val totalSequences: Long
+)
+
+@RestController
+@SecurityRequirement(name = "bearerAuth")
+class PipelineVersionDashboardController(
+    private val pipelineVersionDashboardService: PipelineVersionDashboardService
+) {
+    @Operation(
+        description = "Get statistics about how many sequences are processed with each pipeline version"
+    )
+    @GetMapping("/pipeline-version-dashboard")
+    fun getPipelineVersionDashboard(): PipelineVersionDashboard =
+        pipelineVersionDashboardService.getPipelineVersionStats()
+}
diff --git a/backend/src/main/kotlin/org/loculus/backend/service/dashboard/DashboardControllerService.kt b/backend/src/main/kotlin/org/loculus/backend/service/dashboard/DashboardControllerService.kt
new file mode 100644
index 0000000000..2aefcca86d
--- /dev/null
+++ b/backend/src/main/kotlin/org/loculus/backend/service/dashboard/DashboardControllerService.kt
@@ -0,0 +1,50 @@
+package org.loculus.backend.service.submission
+
+import org.jetbrains.exposed.sql.JoinType
+import org.jetbrains.exposed.sql.Query
+import org.jetbrains.exposed.sql.and
+import org.jetbrains.exposed.sql.SortOrder
+import org.jetbrains.exposed.sql.selectAll
+import org.loculus.backend.controller.PipelineVersionDashboard
+import org.loculus.backend.controller.PipelineVersionStats
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+
+@Service
+@Transactional(readOnly = true)
+class PipelineVersionDashboardService(
+    private val submissionDatabaseService: SubmissionDatabaseService
+) {
+    fun getPipelineVersionStats(): PipelineVersionDashboard {
+        // Join sequence entries with preprocessed data to get version stats
+        val query = SequenceEntriesPreprocessedDataTable
+            .join(
+                SequenceEntriesTable,
+                JoinType.INNER,
+                additionalConstraint = {
+                    (SequenceEntriesPreprocessedDataTable.accessionColumn eq SequenceEntriesTable.accessionColumn) and
+                    (SequenceEntriesPreprocessedDataTable.versionColumn eq SequenceEntriesTable.versionColumn)
+                }
+            )
+            .selectAll()
+
+        // Count sequences per pipeline version
+        val versionCounts = query
+            .groupBy { it[SequenceEntriesPreprocessedDataTable.pipelineVersionColumn] }
+            .mapValues { it.value.size.toLong() }
+
+        val currentVersion = submissionDatabaseService.getCurrentProcessingPipelineVersion()
+
+        val stats = versionCounts.map { (version, count) ->
+            PipelineVersionStats(
+                pipelineVersion = version,
+                sequenceCount = count,
+                isCurrentVersion = version == currentVersion
+            )
+        }.sortedBy { it.pipelineVersion }
+
+        val totalSequences = stats.sumOf { it.sequenceCount }
+
+        return PipelineVersionDashboard(stats, totalSequences)
+    }
+}
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