diff --git a/packages/core/src/examples.ts b/packages/core/src/examples.ts
index a96a3c66..4ef21c82 100644
--- a/packages/core/src/examples.ts
+++ b/packages/core/src/examples.ts
@@ -49,4 +49,11 @@ export namespace Examples {
     name: "Example App",
     redirectURI: "https://web.example.com/v1/callback",
   };
+
+  export const Member = {
+    id: Id("member"),
+    ownerID: User.id,
+    orgID: Organisation.id,
+    role: "admin" as const,
+  };
 }
diff --git a/packages/core/src/member/member.sql.ts b/packages/core/src/member/member.sql.ts
new file mode 100644
index 00000000..8280fd86
--- /dev/null
+++ b/packages/core/src/member/member.sql.ts
@@ -0,0 +1,22 @@
+import { userTable } from "../user/user.sql.js";
+import { orgTable } from "../organisation/org.sql.js";
+import { pgEnum, pgTable } from "drizzle-orm/pg-core";
+import { id, ulid, timestamps } from "../drizzle/types.js";
+
+export const MemberRole = pgEnum("role", ["admin", "member", "admin"]);
+
+export const memberTable = pgTable("members", {
+  ...id,
+  ...timestamps,
+  orgID: ulid("organisation_id")
+    .references(() => orgTable.id, {
+      onDelete: "cascade",
+    })
+    .notNull(),
+  ownerID: ulid("owner_id")
+    .references(() => userTable.id, {
+      onDelete: "cascade",
+    })
+    .notNull(),
+  role: MemberRole("role").notNull(),
+});
diff --git a/packages/core/src/organisation/org.sql.ts b/packages/core/src/organisation/org.sql.ts
index 3cc7a464..04e4c3c8 100644
--- a/packages/core/src/organisation/org.sql.ts
+++ b/packages/core/src/organisation/org.sql.ts
@@ -1,13 +1,15 @@
-import { id, timestamps, ulid } from "../drizzle/types.js";
-import { pgTable, varchar } from "drizzle-orm/pg-core";
 import { userTable } from "../user/user.sql.js";
+import { pgTable, varchar } from "drizzle-orm/pg-core";
+import { id, timestamps, ulid } from "../drizzle/types.js";
 
 export const orgTable = pgTable("organisations", {
   ...id,
   ...timestamps,
-  ownerID: ulid("owner_id").references(() => userTable.id, {
-    onDelete: "cascade",
-  }),
+  ownerID: ulid("owner_id")
+    .references(() => userTable.id, {
+      onDelete: "cascade",
+    })
+    .notNull(),
   name: varchar("name", { length: 255 }).unique().notNull(),
   slug: varchar("slug", { length: 255 }).unique().notNull(),
 });
diff --git a/packages/core/src/steam/steam.sql.ts b/packages/core/src/steam/steam.sql.ts
index 07604ee5..01411cb9 100644
--- a/packages/core/src/steam/steam.sql.ts
+++ b/packages/core/src/steam/steam.sql.ts
@@ -32,9 +32,11 @@ export type Limitations = z.infer<typeof Limitations>;
 export const steamTable = pgTable("steam_accounts", {
   ...timestamps,
   id: varchar("id", { length: 255 }).primaryKey().notNull(),
-  ownerID: ulid("owner_id").references(() => userTable.id, {
-    onDelete: "cascade",
-  }),
+  ownerID: ulid("owner_id")
+    .references(() => userTable.id, {
+      onDelete: "cascade",
+    })
+    .notNull(),
   memberSince: utc("member_since").notNull(),
   name: varchar("name", { length: 255 }).notNull(),
   lastSyncedAt: utc("last_synced_at").notNull(),