diff --git a/apps/web/app/api/affiliate-networks/brands/[domain]/advertisers/route.ts b/apps/web/app/api/affiliate-networks/brands/[domain]/advertisers/route.ts
new file mode 100644
index 00000000..127eed5c
--- /dev/null
+++ b/apps/web/app/api/affiliate-networks/brands/[domain]/advertisers/route.ts
@@ -0,0 +1,37 @@
+// apps/web/app/api/affiliate-networks/brands/[domain]/advertisers/route.ts
+
+import { NextApiRequest, NextApiResponse } from 'next';
+import prisma from '@/lib/prisma';
+import { getSession } from 'next-auth/react'; // Adjust import based on auth setup
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  const { domain } = req.query;
+  const session = await getSession({ req });
+  if (!session || !session.user?.id) {
+    return res.status(401).json({ error: 'Unauthorized' });
+  }
+
+  if (req.method === 'GET') {
+    try {
+      const advertisers = await prisma.advertiser.findMany({
+        where: {
+          userBrandRelationships: {
+            some: {
+              userId: session.user.id,
+              brand: {
+                url: domain as string,
+              },
+            },
+          },
+        },
+      });
+      res.status(200).json({ advertisers });
+    } catch (error) {
+      console.error('Error fetching advertisers:', error);
+      res.status(500).json({ error: 'Internal Server Error' });
+    }
+  } else {
+    res.setHeader('Allow', ['GET']);
+    res.status(405).end(`Method ${req.method} Not Allowed`);
+  }
+}
\ No newline at end of file
diff --git a/apps/web/app/api/affiliate-networks/route.ts b/apps/web/app/api/affiliate-networks/route.ts
new file mode 100644
index 00000000..07c5d77e
--- /dev/null
+++ b/apps/web/app/api/affiliate-networks/route.ts
@@ -0,0 +1,31 @@
+// apps/web/app/api/affiliate-networks/route.ts
+
+import { NextApiRequest, NextApiResponse } from 'next';
+import prisma from '@/lib/prisma';
+import { getSession } from 'next-auth/react'; // Adjust import based on auth setup
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  const session = await getSession({ req });
+  if (!session || !session.user?.id) {
+    return res.status(401).json({ error: 'Unauthorized' });
+  }
+
+  try {
+    const brands = await prisma.brand.findMany({
+      where: {
+        userBrandRelationships: {
+          some: {
+            userId: session.user.id,
+          },
+        },
+      },
+      include: {
+        advertisers: true, // Ensure this relation is defined in Prisma schema
+      },
+    });
+    res.status(200).json({ brands });
+  } catch (error) {
+    console.error('Error fetching affiliate networks:', error);
+    res.status(500).json({ error: 'Internal Server Error' });
+  }
+}
\ No newline at end of file
diff --git a/apps/web/lib/api/links.ts b/apps/web/lib/api/links.ts
index a84e681b..2fb03971 100644
--- a/apps/web/lib/api/links.ts
+++ b/apps/web/lib/api/links.ts
@@ -501,6 +501,8 @@ export async function processLink({
         brand: {
           url: modifiedUrl,
         },
+        advertiserId: payload.advertiserId, // Use selected advertiserId
+        },
       },
       include: {
         brand: true,
diff --git a/apps/web/ui/modals/add-edit-link-modal/index.tsx b/apps/web/ui/modals/add-edit-link-modal/index.tsx
index 7180e1c1..108ea16f 100644
--- a/apps/web/ui/modals/add-edit-link-modal/index.tsx
+++ b/apps/web/ui/modals/add-edit-link-modal/index.tsx
@@ -80,6 +80,9 @@ function AddEditLinkModal({
   const [generatingKey, setGeneratingKey] = useState(false);
   const [saving, setSaving] = useState(false);
 
+  const [advertisers, setAdvertisers] = useState<Advertiser[]>([]);
+  const [selectedAdvertiser, setSelectedAdvertiser] = useState<string | null>(null);
+
   const {
     allActiveDomains: domains,
     primaryDomain,
@@ -116,6 +119,20 @@ function AddEditLinkModal({
   useEffect(() => {
     // when someone pastes a URL
     if (showAddEditLinkModal && url.length > 0) {
+      // Fetch advertisers based on selected brand
+      const fetchAdvertisers = async () => {
+        if (data.domain) {
+          const res = await fetch(`/api/affiliate-networks/brands/${data.domain}/advertisers`);
+          if (res.ok) {
+            const result = await res.json();
+            setAdvertisers(result.advertisers);
+          } else {
+            setAdvertisers([]);
+          }
+        }
+      };
+      fetchAdvertisers();
+
       // if it's a new link and there are matching default domains, set it as the domain
       if (!props && activeDefaultDomains) {
         const urlDomain = getDomainWithoutWWW(url) || "";
@@ -329,6 +346,7 @@ function AddEditLinkModal({
               const { user, tags, tagId, ...rest } = data;
               const bodyData = {
                 ...rest,
+                advertiserId: selectedAdvertiser, // Use the state bound to the dropdown
                 // Map tags to tagIds
                 tagIds: tags.map(({ id }) => id),
               };
@@ -486,6 +504,19 @@ function AddEditLinkModal({
                       </option>
                     ))}
                   </select>
+                  <select
+                    value={selectedAdvertiser}
+                    onChange={(e) => setSelectedAdvertiser(e.target.value)}
+                    className="ml-4 max-w-[16rem] rounded-md border border-gray-300 bg-white pl-4 pr-8 text-sm text-gray-500 focus:border-gray-500 focus:outline-none focus:ring-0"
+                    required
+                  >
+                    <option value="" disabled>Select Advertiser</option>
+                    {advertisers.map((advertiser) => (
+                      <option key={advertiser.id} value={advertiser.id}>
+                        {advertiser.name}
+                      </option>
+                    ))}
+                  </select>
                   <input
                     ref={keyRef}
                     type="text"