diff --git a/src/services/categoryScore.service.ts b/src/services/categoryScore.service.ts
new file mode 100644
index 00000000..9e80938f
--- /dev/null
+++ b/src/services/categoryScore.service.ts
@@ -0,0 +1,40 @@
+import { getRepository, IsNull } from 'typeorm'
+
+import CategoryScoreModel from '../model/categoryScore.model'
+
+import { CategoryScore } from 'devu-shared-modules'
+
+const connect = () => getRepository(CategoryScoreModel)
+
+export async function create(categoryScore: CategoryScore) {
+  return await connect().save(categoryScore)
+}
+
+export async function update(categoryScore: CategoryScore) {
+  const { id, courseId, userId, category, score, letterGrade } = categoryScore
+
+  if (!id) throw new Error('Missing Id')
+
+  return await connect().update(id, { courseId, userId, category, score, letterGrade })
+}
+
+export async function _delete(id: number) {
+  return await connect().softDelete({ id, deletedAt: IsNull() })
+}
+
+export async function retrieve(id: number) {
+  return await connect().findOne({ id, deletedAt: IsNull() })
+}
+
+// Retrieve all the categoryScores linked to a particular category
+export async function list(category: string) {
+  return await connect().find({ category, deletedAt: IsNull() })
+}
+
+export default {
+  create,
+  retrieve,
+  update,
+  _delete,
+  list,
+}