diff --git a/modules/gumgumBidAdapter.js b/modules/gumgumBidAdapter.js
index 6cdfd489d42..b1ed98bc743 100644
--- a/modules/gumgumBidAdapter.js
+++ b/modules/gumgumBidAdapter.js
@@ -374,6 +374,14 @@ function buildRequests(validBidRequests, bidderRequest) {
       data.fpc = currency;
     }
 
+    if (params.iriscat && typeof params.iriscat === 'string') {
+      data.iriscat = params.iriscat;
+    }
+
+    if (params.irisid && typeof params.irisid === 'string') {
+      data.irisid = params.irisid;
+    }
+
     if (params.zone || params.pubId) {
       params.zone ? (data.t = params.zone) : (data.pubId = params.pubId);
 
diff --git a/test/spec/modules/gumgumBidAdapter_spec.js b/test/spec/modules/gumgumBidAdapter_spec.js
index 2ae66f49a7b..8680b3320d1 100644
--- a/test/spec/modules/gumgumBidAdapter_spec.js
+++ b/test/spec/modules/gumgumBidAdapter_spec.js
@@ -254,6 +254,36 @@ describe('gumgumAdapter', function () {
       expect(legReq.data.si).to.equal(invalidSlotId);
     });
 
+    it('should set the iriscat param when found', function () {
+      const request = { ...bidRequests[0], params: { iriscat: 'abc123' } }
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data).to.have.property('iriscat');
+    });
+
+    it('should not set the iriscat param when not found', function () {
+      const request = { ...bidRequests[0] }
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data).to.not.have.property('iriscat');
+    });
+
+    it('should set the irisid param when found', function () {
+      const request = { ...bidRequests[0], params: { irisid: 'abc123' } }
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data).to.have.property('irisid');
+    });
+
+    it('should not set the irisid param when not found', function () {
+      const request = { ...bidRequests[0] }
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data).to.not.have.property('irisid');
+    });
+
+    it('should not set the irisid param when not of type string', function () {
+      const request = { ...bidRequests[0], params: { irisid: 123456 } }
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data).to.not.have.property('irisid');
+    });
+
     it('should set the global placement id (gpid) if in adserver property', function () {
       const req = { ...bidRequests[0],
         ortb2Imp: {
@@ -393,6 +423,25 @@ describe('gumgumAdapter', function () {
       expect(bidRequest.data).to.include.any.keys('t');
       expect(bidRequest.data).to.include.any.keys('fp');
     });
+    it('should set iriscat parameter if iriscat param is found and is of type string', function () {
+      const iriscat = 'segment';
+      const request = { ...bidRequests[0] };
+      request.params = { ...request.params, iriscat };
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data.iriscat).to.equal(iriscat);
+    });
+    it('should not send iriscat parameter if iriscat param is not found', function () {
+      const request = { ...bidRequests[0] };
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data.iriscat).to.be.undefined;
+    });
+    it('should not send iriscat parameter if iriscat param is not of type string', function () {
+      const iriscat = 123;
+      const request = { ...bidRequests[0] };
+      request.params = { ...request.params, iriscat };
+      const bidRequest = spec.buildRequests([request])[0];
+      expect(bidRequest.data.iriscat).to.be.undefined;
+    });
     it('should send pubId if inScreenPubID param is specified', function () {
       const request = Object.assign({}, bidRequests[0]);
       delete request.params;