diff --git a/src/organisation/models.py b/src/organisation/models.py
index 7ed5d91..ceae8f7 100644
--- a/src/organisation/models.py
+++ b/src/organisation/models.py
@@ -7,6 +7,7 @@ Models:
  - OrgUsers: org_id[fk][cpk], user_id[fk][cpk], is_admin
 """
 from sqlalchemy import Column, Integer, String, ForeignKey, JSON
+from sqlalchemy.orm import relationship
 
 from src.database import Base
 
@@ -25,6 +26,12 @@ class Organisation(Base):
 	security_contact_id = Column(Integer, ForeignKey("contact.id"))
 	owner_contact_id = Column(Integer, ForeignKey("contact.id"))
 
+	users = relationship(
+		"User",
+		secondary="orgusers",
+		back_populates="organisations"
+	)
+
 
 class OrgUsers(Base):
 	__tablename__ = "orgusers"
diff --git a/src/user/models.py b/src/user/models.py
index 89801d5..7bce630 100644
--- a/src/user/models.py
+++ b/src/user/models.py
@@ -5,6 +5,7 @@ Models:
  - User - id[pk], email, first_name, last_name, oidc_id
 """
 from sqlalchemy import Column, Integer, String
+from sqlalchemy.orm import relationship
 
 from src.database import Base
 
@@ -17,3 +18,9 @@ class User(Base):
 	first_name = Column(String)
 	last_name = Column(String)
 	oidc_id = Column(String, index=True, unique=True)
+
+	organisations = relationship(
+		"Organisation",
+		secondary="orgusers",
+		back_populates="users"
+	)