diff --git a/src/models/RunnerOrganisation.ts b/src/models/RunnerOrganisation.ts
new file mode 100644
index 0000000..346d75a
--- /dev/null
+++ b/src/models/RunnerOrganisation.ts
@@ -0,0 +1,19 @@
+import { Entity, Column } from "typeorm";
+import { IsOptional,} from "class-validator";
+import { RunnerGroup } from "./RunnerGroup";
+
+/**
+ * Defines a runner organisation (business or school for example).
+*/
+@Entity()
+export class RunnerOrganisation extends RunnerGroup {
+
+  /**
+   * The organisations's address.
+   * Optional
+   */
+  @Column()
+  @IsOptional()
+  //TODO: Relationship
+  address?: Location;
+}
\ No newline at end of file