diff --git a/backend/server.py b/backend/server.py
index 9d9bf3e..f5be86e 100644
--- a/backend/server.py
+++ b/backend/server.py
@@ -825,6 +825,7 @@ def _upsert_contact_from_fundraising(conn, investor_name, contact, actor_user_id
     country = str(contact.get('country') or '').strip()
     location_query = str(contact.get('location_query') or '').strip()
     linkedin_url = str(contact.get('linkedin_url') or '').strip()
+    phone = str(contact.get('phone') or '').strip()
     if not full_name and not email:
         return None
     first_name, last_name = _split_full_name(full_name)
@@ -869,20 +870,21 @@ def _upsert_contact_from_fundraising(conn, investor_name, contact, actor_user_id
         next_country = country or str(existing['country'] or '')
         next_location_query = location_query or str(existing['location_query'] or '')
         next_linkedin = linkedin_url or str(existing['linkedin_url'] or '')
+        next_phone = phone or str(existing['phone'] or '')
         next_org = org_id or existing['organization_id']
         conn.execute("""
             UPDATE contacts
             SET first_name = ?, last_name = ?, email = ?, title = ?,
-                organization_id = ?, source = ?, contact_type = 'investor', city = ?, state = ?, country = ?, location_query = ?, linkedin_url = ?, updated_at = ?
+                organization_id = ?, source = ?, contact_type = 'investor', city = ?, state = ?, country = ?, location_query = ?, linkedin_url = ?, phone = ?, updated_at = ?
             WHERE id = ?
-        """, (next_first, next_last, next_email, next_title, next_org, next_source, next_city, next_state, next_country, next_location_query, next_linkedin, now(), existing['id']))
+        """, (next_first, next_last, next_email, next_title, next_org, next_source, next_city, next_state, next_country, next_location_query, next_linkedin, next_phone, now(), existing['id']))
         return existing['id']
 
     contact_id = generate_id()
     conn.execute("""
         INSERT INTO contacts (
-            id, first_name, last_name, email, title, organization_id, source, contact_type, status, city, state, country, location_query, linkedin_url, created_by, updated_at
-        ) VALUES (?, ?, ?, ?, ?, ?, ?, 'investor', 'active', ?, ?, ?, ?, ?, ?, ?)
+            id, first_name, last_name, email, title, organization_id, source, contact_type, status, city, state, country, location_query, linkedin_url, phone, created_by, updated_at
+        ) VALUES (?, ?, ?, ?, ?, ?, ?, 'investor', 'active', ?, ?, ?, ?, ?, ?, ?, ?)
     """, (
         contact_id,
         first_name or 'Unknown',
@@ -896,6 +898,7 @@ def _upsert_contact_from_fundraising(conn, investor_name, contact, actor_user_id
         country,
         location_query,
         linkedin_url,
+        phone,
         actor_user_id,
         now()
     ))
diff --git a/backend/test_grid_add_investor.py b/backend/test_grid_add_investor.py
index 83183f0..7fee809 100644
--- a/backend/test_grid_add_investor.py
+++ b/backend/test_grid_add_investor.py
@@ -161,6 +161,27 @@ def main():
               f"reminder linked to the new investor (got id={rem.get('investor_id')!r}, "
               f"name={rem.get('investor_name')!r})")
 
+        # ── card-intake contact fields land on the canonical contact (phone/city/linkedin) ──
+        #    The Matrix card flow sends these on the contact dict; the upsert must persist them.
+        print("\n[contact fields: phone + city + linkedin persist on the contact]")
+        st, d = _req(port, "POST", "/api/fundraising/log-communication", token, {
+            "investor_name": "MARA Holdings", "create_investor_if_missing": True,
+            "contact": {"name": "Doug Mellinger", "email": "doug@mara.example",
+                        "phone": "1.914.456.2146", "city": "New York",
+                        "linkedin_url": "linkedin.com/in/dougmellinger"},
+            "type": "note", "body": "from a business card", "append_note": True,
+        })
+        check(st == 201, f"create with contact fields -> 201 (got {st})")
+        c = _db()
+        crow = c.execute("SELECT phone, city, linkedin_url FROM contacts WHERE lower(email) = ?",
+                         ("doug@mara.example",)).fetchone()
+        c.close()
+        check(crow is not None, "contact row exists")
+        check(bool(crow) and crow[0] == "1.914.456.2146", f"phone persisted (got {crow[0] if crow else None!r})")
+        check(bool(crow) and crow[1] == "New York", f"city persisted (got {crow[1] if crow else None!r})")
+        check(bool(crow) and crow[2] == "linkedin.com/in/dougmellinger",
+              f"linkedin persisted (got {crow[2] if crow else None!r})")
+
         # ── unknown source_row_id is refused (guard) ──
         print("\n[guard: reminder on an unknown source_row_id -> 404]")
         st, _ = _req(port, "POST", "/api/reminders", token, {