diff --git a/migrations/0003_create_organizations_table.sql b/migrations/0003_create_organizations_table.sql
new file mode 100644
index 0000000..e9ab826
--- /dev/null
+++ b/migrations/0003_create_organizations_table.sql
@@ -0,0 +1,7 @@
+create table organizations (
+  id uuid primary key default uuidv4(),
+  name varchar(255) not null,
+  slug varchar(255) not null unique, -- acme-corp-a7x9
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now()
+);
diff --git a/migrations/0004_create_org_membership_table.sql b/migrations/0004_create_org_membership_table.sql
new file mode 100644
index 0000000..375a1eb
--- /dev/null
+++ b/migrations/0004_create_org_membership_table.sql
@@ -0,0 +1,13 @@
+
+CREATE TYPE org_role AS ENUM ('owner', 'admin', 'member', 'viewer');
+
+CREATE TABLE org_memberships (
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    org_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
+    role org_role NOT NULL,
+
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+
+    PRIMARY KEY (user_id, org_id)
+);
diff --git a/src/db/model/mod.rs b/src/db/model/mod.rs
index 4afde74..e5b0708 100644
--- a/src/db/model/mod.rs
+++ b/src/db/model/mod.rs
@@ -1,2 +1,3 @@
+pub mod organization;
 pub mod refresh_token;
 pub mod user;
diff --git a/src/db/model/organization.rs b/src/db/model/organization.rs
new file mode 100644
index 0000000..59e5a7c
--- /dev/null
+++ b/src/db/model/organization.rs
@@ -0,0 +1,34 @@
+use sqlx::{
+    prelude::FromRow,
+    types::{
+        Uuid,
+        chrono::{DateTime, Utc},
+    },
+};
+
+#[derive(Debug, FromRow)]
+pub struct Organization {
+    pub id: Uuid,
+    pub name: String,
+    pub slug: String,
+    pub created_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
+
+#[derive(sqlx::Type, Debug, Clone, PartialEq)]
+#[sqlx(type_name = "org_role", rename_all = "lowercase")]
+pub enum OrgRole {
+    Owner,
+    Admin,
+    Member,
+    Viewer,
+}
+
+#[derive(Debug, FromRow)]
+pub struct OrgMember {
+    pub user_id: Uuid,
+    pub org_id: Uuid,
+    pub role: OrgRole,
+    pub created_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
diff --git a/src/db/repository/mod.rs b/src/db/repository/mod.rs
index dc277ef..7d60ffb 100644
--- a/src/db/repository/mod.rs
+++ b/src/db/repository/mod.rs
@@ -1,2 +1,3 @@
+pub mod organization_repository;
 pub mod refresh_token_repository;
 pub mod user_repository;
diff --git a/src/db/repository/organization_repository.rs b/src/db/repository/organization_repository.rs
new file mode 100644
index 0000000..d178880
--- /dev/null
+++ b/src/db/repository/organization_repository.rs
@@ -0,0 +1,44 @@
+use sqlx::{Executor, Postgres};
+use uuid::Uuid;
+
+use crate::{db::model::organization::Organization, errors::AppError};
+
+pub async fn create_organization<'e, E>(
+    executor: E,
+    name: String,
+    slug: String,
+) -> Result<Organization, AppError>
+where
+    E: Executor<'e, Database = Postgres>,
+{
+    let org = sqlx::query_as!(
+        Organization,
+        "insert into organizations (name, slug) values ($1, $2) returning *",
+        name,
+        slug
+    )
+    .fetch_one(executor)
+    .await
+    .map_err(AppError::from)?;
+
+    Ok(org)
+}
+
+pub async fn get_organizations_by_id_list<'e, E>(
+    executor: E,
+    ids: &[Uuid],
+) -> Result<Vec<Organization>, AppError>
+where
+    E: Executor<'e, Database = Postgres>,
+{
+    let org = sqlx::query_as!(
+        Organization,
+        "select * from organizations where id = any($1)",
+        ids
+    )
+    .fetch_all(executor)
+    .await
+    .map_err(AppError::from)?;
+
+    Ok(org)
+}