diff --git a/src/registrar/admin.py b/src/registrar/admin.py
index 160b906ab..8a691c7fa 100644
--- a/src/registrar/admin.py
+++ b/src/registrar/admin.py
@@ -2552,6 +2552,34 @@ class VerifiedByStaffAdmin(ListHeaderAdmin):
         super().save_model(request, obj, form, change)
 
 
+class PortfolioAdmin(ListHeaderAdmin):
+    # NOTE: these are just placeholders.  Not part of ACs (haven't been defined yet).  Update in future tickets.
+    list_display = ("organization_name", "federal_agency", "creator")
+    search_fields = ["organization_name"]
+    search_help_text = "Search by organization name."
+    # readonly_fields = [
+    #     "requestor",
+    # ]
+
+    def save_model(self, request, obj, form, change):
+
+        if obj.creator is not None:
+            # ---- update creator ----
+            # Set the creator field to the current admin user
+            obj.creator = request.user if request.user.is_authenticated else None
+
+        # ---- update organization name ----
+        # org name will be the same as federal agency, if it is federal,
+        # otherwise it will be the actual org name. If nothing is entered for
+        # org name and it is a federal organization, have this field fill with
+        # the federal agency text name.
+        is_federal = obj.organization_type == DomainRequest.OrganizationChoices.FEDERAL
+        if is_federal and obj.organization_name is None:
+            obj.organization_name = obj.federal_agency.agency
+
+        super().save_model(request, obj, form, change)
+
+
 class FederalAgencyAdmin(ListHeaderAdmin):
     list_display = ["agency"]
     search_fields = ["agency"]
@@ -2622,6 +2650,7 @@ admin.site.register(models.PublicContact, PublicContactAdmin)
 admin.site.register(models.DomainRequest, DomainRequestAdmin)
 admin.site.register(models.TransitionDomain, TransitionDomainAdmin)
 admin.site.register(models.VerifiedByStaff, VerifiedByStaffAdmin)
+admin.site.register(models.Portfolio, PortfolioAdmin)
 
 # Register our custom waffle implementations
 admin.site.register(models.WaffleFlag, WaffleFlagAdmin)
diff --git a/src/registrar/migrations/0103_portfolio_domaininformation_portfolio_and_more.py b/src/registrar/migrations/0103_portfolio_domaininformation_portfolio_and_more.py
new file mode 100644
index 000000000..ac7a69074
--- /dev/null
+++ b/src/registrar/migrations/0103_portfolio_domaininformation_portfolio_and_more.py
@@ -0,0 +1,174 @@
+# Generated by Django 4.2.10 on 2024-06-18 17:55
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import registrar.models.federal_agency
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("registrar", "0102_domain_dsdata_last_change"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Portfolio",
+            fields=[
+                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+                ("updated_at", models.DateTimeField(auto_now=True)),
+                ("notes", models.TextField(blank=True, null=True)),
+                (
+                    "organization_type",
+                    models.CharField(
+                        blank=True,
+                        choices=[
+                            ("federal", "Federal"),
+                            ("interstate", "Interstate"),
+                            ("state_or_territory", "State or territory"),
+                            ("tribal", "Tribal"),
+                            ("county", "County"),
+                            ("city", "City"),
+                            ("special_district", "Special district"),
+                            ("school_district", "School district"),
+                        ],
+                        help_text="Type of organization",
+                        max_length=255,
+                        null=True,
+                    ),
+                ),
+                ("organization_name", models.CharField(blank=True, null=True)),
+                ("address_line1", models.CharField(blank=True, null=True, verbose_name="address line 1")),
+                ("address_line2", models.CharField(blank=True, null=True, verbose_name="address line 2")),
+                ("city", models.CharField(blank=True, null=True)),
+                (
+                    "state_territory",
+                    models.CharField(
+                        blank=True,
+                        choices=[
+                            ("AL", "Alabama (AL)"),
+                            ("AK", "Alaska (AK)"),
+                            ("AS", "American Samoa (AS)"),
+                            ("AZ", "Arizona (AZ)"),
+                            ("AR", "Arkansas (AR)"),
+                            ("CA", "California (CA)"),
+                            ("CO", "Colorado (CO)"),
+                            ("CT", "Connecticut (CT)"),
+                            ("DE", "Delaware (DE)"),
+                            ("DC", "District of Columbia (DC)"),
+                            ("FL", "Florida (FL)"),
+                            ("GA", "Georgia (GA)"),
+                            ("GU", "Guam (GU)"),
+                            ("HI", "Hawaii (HI)"),
+                            ("ID", "Idaho (ID)"),
+                            ("IL", "Illinois (IL)"),
+                            ("IN", "Indiana (IN)"),
+                            ("IA", "Iowa (IA)"),
+                            ("KS", "Kansas (KS)"),
+                            ("KY", "Kentucky (KY)"),
+                            ("LA", "Louisiana (LA)"),
+                            ("ME", "Maine (ME)"),
+                            ("MD", "Maryland (MD)"),
+                            ("MA", "Massachusetts (MA)"),
+                            ("MI", "Michigan (MI)"),
+                            ("MN", "Minnesota (MN)"),
+                            ("MS", "Mississippi (MS)"),
+                            ("MO", "Missouri (MO)"),
+                            ("MT", "Montana (MT)"),
+                            ("NE", "Nebraska (NE)"),
+                            ("NV", "Nevada (NV)"),
+                            ("NH", "New Hampshire (NH)"),
+                            ("NJ", "New Jersey (NJ)"),
+                            ("NM", "New Mexico (NM)"),
+                            ("NY", "New York (NY)"),
+                            ("NC", "North Carolina (NC)"),
+                            ("ND", "North Dakota (ND)"),
+                            ("MP", "Northern Mariana Islands (MP)"),
+                            ("OH", "Ohio (OH)"),
+                            ("OK", "Oklahoma (OK)"),
+                            ("OR", "Oregon (OR)"),
+                            ("PA", "Pennsylvania (PA)"),
+                            ("PR", "Puerto Rico (PR)"),
+                            ("RI", "Rhode Island (RI)"),
+                            ("SC", "South Carolina (SC)"),
+                            ("SD", "South Dakota (SD)"),
+                            ("TN", "Tennessee (TN)"),
+                            ("TX", "Texas (TX)"),
+                            ("UM", "United States Minor Outlying Islands (UM)"),
+                            ("UT", "Utah (UT)"),
+                            ("VT", "Vermont (VT)"),
+                            ("VI", "Virgin Islands (VI)"),
+                            ("VA", "Virginia (VA)"),
+                            ("WA", "Washington (WA)"),
+                            ("WV", "West Virginia (WV)"),
+                            ("WI", "Wisconsin (WI)"),
+                            ("WY", "Wyoming (WY)"),
+                            ("AA", "Armed Forces Americas (AA)"),
+                            ("AE", "Armed Forces Africa, Canada, Europe, Middle East (AE)"),
+                            ("AP", "Armed Forces Pacific (AP)"),
+                        ],
+                        max_length=2,
+                        null=True,
+                        verbose_name="state / territory",
+                    ),
+                ),
+                ("zipcode", models.CharField(blank=True, max_length=10, null=True, verbose_name="zip code")),
+                (
+                    "urbanization",
+                    models.CharField(
+                        blank=True, help_text="Required for Puerto Rico only", null=True, verbose_name="urbanization"
+                    ),
+                ),
+                (
+                    "security_contact_email",
+                    models.EmailField(blank=True, max_length=320, null=True, verbose_name="security contact e-mail"),
+                ),
+                (
+                    "creator",
+                    models.ForeignKey(
+                        help_text="Associated user",
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+                (
+                    "federal_agency",
+                    models.ForeignKey(
+                        default=registrar.models.federal_agency.FederalAgency.get_non_federal_agency,
+                        help_text="Associated federal agency",
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to="registrar.federalagency",
+                    ),
+                ),
+            ],
+            options={
+                "abstract": False,
+            },
+        ),
+        migrations.AddField(
+            model_name="domaininformation",
+            name="portfolio",
+            field=models.ForeignKey(
+                blank=True,
+                help_text="Portfolio associated with this domain",
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="DomainRequest_portfolio",
+                to="registrar.portfolio",
+            ),
+        ),
+        migrations.AddField(
+            model_name="domainrequest",
+            name="portfolio",
+            field=models.ForeignKey(
+                blank=True,
+                help_text="Portfolio associated with this domain request",
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="DomainInformation_portfolio",
+                to="registrar.portfolio",
+            ),
+        ),
+    ]
diff --git a/src/registrar/migrations/0104_create_groups_v13.py b/src/registrar/migrations/0104_create_groups_v13.py
new file mode 100644
index 000000000..0ce3bafa5
--- /dev/null
+++ b/src/registrar/migrations/0104_create_groups_v13.py
@@ -0,0 +1,37 @@
+# This migration creates the create_full_access_group and create_cisa_analyst_group groups
+# It is dependent on 0079 (which populates federal agencies)
+# If permissions on the groups need changing, edit CISA_ANALYST_GROUP_PERMISSIONS
+# in the user_group model then:
+# [NOT RECOMMENDED]
+# step 1: docker-compose exec app ./manage.py migrate --fake registrar 0035_contenttypes_permissions
+# step 2: docker-compose exec app ./manage.py migrate registrar 0036_create_groups
+# step 3: fake run the latest migration in the migrations list
+# [RECOMMENDED]
+# Alternatively:
+# step 1: duplicate the migration that loads data
+# step 2: docker-compose exec app ./manage.py migrate
+
+from django.db import migrations
+from registrar.models import UserGroup
+from typing import Any
+
+
+# For linting: RunPython expects a function reference,
+# so let's give it one
+def create_groups(apps, schema_editor) -> Any:
+    UserGroup.create_cisa_analyst_group(apps, schema_editor)
+    UserGroup.create_full_access_group(apps, schema_editor)
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("registrar", "0103_portfolio_domaininformation_portfolio_and_more"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            create_groups,
+            reverse_code=migrations.RunPython.noop,
+            atomic=True,
+        ),
+    ]
diff --git a/src/registrar/models/__init__.py b/src/registrar/models/__init__.py
index f084a5d8b..b2cffaf32 100644
--- a/src/registrar/models/__init__.py
+++ b/src/registrar/models/__init__.py
@@ -16,6 +16,7 @@ from .website import Website
 from .transition_domain import TransitionDomain
 from .verified_by_staff import VerifiedByStaff
 from .waffle_flag import WaffleFlag
+from .portfolio import Portfolio
 
 
 __all__ = [
@@ -36,6 +37,7 @@ __all__ = [
     "TransitionDomain",
     "VerifiedByStaff",
     "WaffleFlag",
+    "Portfolio",
 ]
 
 auditlog.register(Contact)
@@ -55,3 +57,4 @@ auditlog.register(Website)
 auditlog.register(TransitionDomain)
 auditlog.register(VerifiedByStaff)
 auditlog.register(WaffleFlag)
+auditlog.register(Portfolio)
diff --git a/src/registrar/models/domain_information.py b/src/registrar/models/domain_information.py
index 62db04ac8..b6f2dd9a7 100644
--- a/src/registrar/models/domain_information.py
+++ b/src/registrar/models/domain_information.py
@@ -57,6 +57,16 @@ class DomainInformation(TimeStampedModel):
         help_text="Person who submitted the domain request",
     )
 
+    # portfolio
+    portfolio = models.ForeignKey(
+        "registrar.Portfolio",
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+        related_name="DomainRequest_portfolio",
+        help_text="Portfolio associated with this domain",
+    )
+
     domain_request = models.OneToOneField(
         "registrar.DomainRequest",
         on_delete=models.PROTECT,
diff --git a/src/registrar/models/domain_request.py b/src/registrar/models/domain_request.py
index 4f306f403..1c4725be1 100644
--- a/src/registrar/models/domain_request.py
+++ b/src/registrar/models/domain_request.py
@@ -303,6 +303,16 @@ class DomainRequest(TimeStampedModel):
         null=True,
     )
 
+    # portfolio
+    portfolio = models.ForeignKey(
+        "registrar.Portfolio",
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+        related_name="DomainInformation_portfolio",
+        help_text="Portfolio associated with this domain request",
+    )
+
     # This is the domain request user who created this domain request. The contact
     # information that they gave is in the `submitter` field
     creator = models.ForeignKey(
diff --git a/src/registrar/models/federal_agency.py b/src/registrar/models/federal_agency.py
index cb09d12ac..8db415bbd 100644
--- a/src/registrar/models/federal_agency.py
+++ b/src/registrar/models/federal_agency.py
@@ -230,3 +230,8 @@ class FederalAgency(TimeStampedModel):
             FederalAgency.objects.bulk_create(agencies)
         except Exception as e:
             logger.error(f"Error creating federal agencies: {e}")
+
+    @classmethod
+    def get_non_federal_agency(cls):
+        """Returns the non-federal agency."""
+        return FederalAgency.objects.filter(agency="Non-Federal Agency").first()
diff --git a/src/registrar/models/portfolio.py b/src/registrar/models/portfolio.py
new file mode 100644
index 000000000..a05422960
--- /dev/null
+++ b/src/registrar/models/portfolio.py
@@ -0,0 +1,99 @@
+from django.db import models
+
+from registrar.models.domain_request import DomainRequest
+from registrar.models.federal_agency import FederalAgency
+
+from .utility.time_stamped_model import TimeStampedModel
+
+
+# def get_default_federal_agency():
+#     """returns non-federal agency"""
+#     return FederalAgency.objects.filter(agency="Non-Federal Agency").first()
+
+
+class Portfolio(TimeStampedModel):
+    """
+    Portfolio is used for organizing domains/domain-requests into
+    manageable groups.
+    """
+
+    # use the short names in Django admin
+    OrganizationChoices = DomainRequest.OrganizationChoices
+    StateTerritoryChoices = DomainRequest.StateTerritoryChoices
+
+    # Stores who created this model. If no creator is specified in DJA,
+    # then the creator will default to the current request user"""
+    creator = models.ForeignKey("registrar.User", on_delete=models.PROTECT, help_text="Associated user", unique=False)
+
+    notes = models.TextField(
+        null=True,
+        blank=True,
+    )
+
+    federal_agency = models.ForeignKey(
+        "registrar.FederalAgency",
+        on_delete=models.PROTECT,
+        help_text="Associated federal agency",
+        unique=False,
+        default=FederalAgency.get_non_federal_agency,
+    )
+
+    organization_type = models.CharField(
+        max_length=255,
+        choices=OrganizationChoices.choices,
+        null=True,
+        blank=True,
+        help_text="Type of organization",
+    )
+
+    organization_name = models.CharField(
+        null=True,
+        blank=True,
+    )
+
+    address_line1 = models.CharField(
+        null=True,
+        blank=True,
+        verbose_name="address line 1",
+    )
+
+    address_line2 = models.CharField(
+        null=True,
+        blank=True,
+        verbose_name="address line 2",
+    )
+
+    city = models.CharField(
+        null=True,
+        blank=True,
+    )
+
+    # (imports enums from domain_request.py)
+    state_territory = models.CharField(
+        max_length=2,
+        choices=StateTerritoryChoices.choices,
+        null=True,
+        blank=True,
+        verbose_name="state / territory",
+    )
+
+    zipcode = models.CharField(
+        max_length=10,
+        null=True,
+        blank=True,
+        verbose_name="zip code",
+    )
+
+    urbanization = models.CharField(
+        null=True,
+        blank=True,
+        help_text="Required for Puerto Rico only",
+        verbose_name="urbanization",
+    )
+
+    security_contact_email = models.EmailField(
+        null=True,
+        blank=True,
+        verbose_name="security contact e-mail",
+        max_length=320,
+    )
diff --git a/src/registrar/tests/test_admin.py b/src/registrar/tests/test_admin.py
index b24ffb47c..802974b6e 100644
--- a/src/registrar/tests/test_admin.py
+++ b/src/registrar/tests/test_admin.py
@@ -2291,6 +2291,7 @@ class TestDomainRequestAdmin(MockEppLib):
                 "rejection_reason",
                 "action_needed_reason",
                 "federal_agency",
+                "portfolio",
                 "creator",
                 "investigator",
                 "generic_org_type",