diff --git a/AUTHORS.md b/AUTHORS.md
index 38751a1..3da0059 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -2,6 +2,7 @@
 
 The list of contributors in alphabetical order:
 
+- [Alp Tuna](https://orcid.org/0009-0001-1915-3993)
 - [Audrius Mecionis](https://orcid.org/0000-0002-3759-1663)
 - [Camila Diaz](https://orcid.org/0000-0001-5543-797X)
 - [Daan Rosendal](https://orcid.org/0000-0002-3447-9000)
diff --git a/reana_db/alembic/versions/20241119_1051_8da6ccf08af9_add_service_tables.py b/reana_db/alembic/versions/20241119_1051_8da6ccf08af9_add_service_tables.py
new file mode 100644
index 0000000..51de624
--- /dev/null
+++ b/reana_db/alembic/versions/20241119_1051_8da6ccf08af9_add_service_tables.py
@@ -0,0 +1,76 @@
+"""Service tables.
+
+Revision ID: 8da6ccf08af9
+Revises: 2e82f33ee37d
+Create Date: 2024-11-19 10:51:51.199670
+
+"""
+
+import sqlalchemy_utils
+import sqlalchemy as sa
+from alembic import op
+
+
+# revision identifiers, used by Alembic.
+revision = "8da6ccf08af9"
+down_revision = "2e82f33ee37d"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    """Upgrade to 8da6ccf08af9 revision."""
+    op.create_table(
+        "service",
+        sa.Column("id_", sqlalchemy_utils.types.uuid.UUIDType(), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=True),
+        sa.Column("uri", sa.Text(), nullable=True),
+        sa.Column(
+            "status",
+            sa.Enum(
+                "created",
+                "running",
+                "finished",
+                "failed",
+                "deleted",
+                "stopped",
+                "queued",
+                "pending",
+                name="runstatus",
+            ),
+            nullable=False,
+        ),
+        sa.Column("owner_id", sqlalchemy_utils.types.uuid.UUIDType(), nullable=True),
+        sa.Column("type_", sa.Enum("dask", name="servicetype"), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["owner_id"], ["__reana.user_.id_"], name=op.f("fk_service_owner_id_user_")
+        ),
+        sa.PrimaryKeyConstraint("id_", name=op.f("pk_service")),
+        sa.UniqueConstraint("name", "uri", name=op.f("uq_service_name")),
+        schema="__reana",
+    )
+    op.create_table(
+        "workflow_service",
+        sa.Column("workflow_id", sqlalchemy_utils.types.uuid.UUIDType(), nullable=True),
+        sa.Column("service_id", sqlalchemy_utils.types.uuid.UUIDType(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["service_id"],
+            ["__reana.service.id_"],
+            name=op.f("fk_workflow_service_service_id_service"),
+        ),
+        sa.ForeignKeyConstraint(
+            ["workflow_id"],
+            ["__reana.workflow.id_"],
+            name=op.f("fk_workflow_service_workflow_id_workflow"),
+        ),
+        sa.PrimaryKeyConstraint("service_id", name=op.f("pk_workflow_service")),
+        schema="__reana",
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    """Downgrade to 2e82f33ee37d revision."""
+    op.drop_table("workflow_service", schema="__reana")
+    op.drop_table("service", schema="__reana")
+    # ### end Alembic commands ###
diff --git a/reana_db/models.py b/reana_db/models.py
index 68edec8..e226bbe 100644
--- a/reana_db/models.py
+++ b/reana_db/models.py
@@ -460,6 +460,50 @@ def __repr__(self):
         return "<InteractiveSession %r>" % self.name
 
 
+class WorkflowService(Base):
+    """Workflow Service table."""
+
+    __tablename__ = "workflow_service"
+    __table_args__ = {"schema": "__reana"}
+
+    workflow_id = Column(UUIDType, ForeignKey("__reana.workflow.id_"), nullable=True)
+    service_id = Column(UUIDType, ForeignKey("__reana.service.id_"), primary_key=True)
+
+    def __repr__(self):
+        """Workflow Service string representation."""
+        return f"<WorkflowService {self.service_id} {self.workflow_id}>"
+
+
+class ServiceType(enum.Enum):
+    """Enumeration of service types."""
+
+    dask = 0
+
+
+class Service(Base):
+    """Service table."""
+
+    __tablename__ = "service"
+    id_ = Column(UUIDType, primary_key=True, default=generate_uuid)
+    name = Column(String(255))
+    uri = Column(Text)  # uri to access the service
+    status = Column(Enum(RunStatus), nullable=False, default=RunStatus.created)
+    owner_id = Column(UUIDType, ForeignKey("__reana.user_.id_"))
+    type_ = Column(
+        Enum(ServiceType),
+        nullable=False,
+    )
+
+    __table_args__ = (
+        UniqueConstraint("name", "uri"),
+        {"schema": "__reana"},
+    )
+
+    def __repr__(self):
+        """Service string representation."""
+        return f"<Service(name={self.name}, type={self.type_}, uri={self.uri})>"
+
+
 class Workflow(Base, Timestamp, QuotaBase):
     """Workflow table."""
 
@@ -500,6 +544,13 @@ class Workflow(Base, Timestamp, QuotaBase):
         backref="workflow",
         cascade="all, delete",
     )
+    services = relationship(
+        "Service",
+        secondary="__reana.workflow_service",
+        lazy="dynamic",
+        backref="workflow",
+        cascade="all, delete",
+    )
     retention_rules = relationship(
         "WorkspaceRetentionRule", backref="workflow", lazy="dynamic"
     )