diff --git a/modules/excoBidAdapter.js b/modules/excoBidAdapter.js
new file mode 100644
index 00000000000..150d467a08a
--- /dev/null
+++ b/modules/excoBidAdapter.js
@@ -0,0 +1,37 @@
+import {registerBidder} from '../src/adapters/bidderFactory.js';
+import {BANNER, VIDEO} from '../src/mediaTypes.js';
+import {getStorageManager} from '../src/storageManager.js';
+import {
+  isBidRequestValid, createUserSyncGetter, createInterpretResponseFn, createBuildRequestsFn
+} from '../libraries/vidazooUtils/bidderUtils.js';
+
+const DEFAULT_SUB_DOMAIN = 'rtb';
+const BIDDER_CODE = 'exco';
+const BIDDER_VERSION = '1.0.0';
+const GVLID = 444;
+export const storage = getStorageManager({bidderCode: BIDDER_CODE});
+
+export function createDomain(subDomain = DEFAULT_SUB_DOMAIN) {
+  return `https://${subDomain}.exco-pb.com`;
+}
+
+const buildRequests = createBuildRequestsFn(createDomain, null, storage, BIDDER_CODE, BIDDER_VERSION, false);
+
+const interpretResponse = createInterpretResponseFn(BIDDER_CODE, false);
+
+const getUserSyncs = createUserSyncGetter({
+  iframeSyncUrl: 'https://cs.exco-pb.com/api/sync/iframe', imageSyncUrl: 'https://cs.exco-pb.com/api/sync/image'
+});
+
+export const spec = {
+  code: BIDDER_CODE,
+  version: BIDDER_VERSION,
+  supportedMediaTypes: [BANNER, VIDEO],
+  gvlid: GVLID,
+  isBidRequestValid,
+  buildRequests,
+  interpretResponse,
+  getUserSyncs
+};
+
+registerBidder(spec);
diff --git a/modules/excoBidAdapter.md b/modules/excoBidAdapter.md
new file mode 100644
index 00000000000..f171de73883
--- /dev/null
+++ b/modules/excoBidAdapter.md
@@ -0,0 +1,35 @@
+# Overview
+
+**Module Name:** Exco Bid Adapter
+
+**Module Type:** Bidder Adapter
+
+**Maintainer:** Itadmin@ex.co
+
+# Description
+
+Module that connects to Exco's demand sources.
+
+# Test Parameters
+  ```js
+var adUnits = [
+  {
+    code: 'test-ad',
+    sizes: [[300, 250]],
+    bids: [
+      {
+        bidder: 'exco',
+        params: {
+          cId: '562524b21b1c1f08117fc7f9',
+          pId: '59ac17c192832d0011283fe3',
+          bidFloor: 0.0001,
+          ext: {
+            param1: 'loremipsum',
+            param2: 'dolorsitamet'
+          }
+        }
+      }
+    ]
+  }
+];
+```
diff --git a/test/spec/modules/excoBidAdapter_spec.js b/test/spec/modules/excoBidAdapter_spec.js
new file mode 100644
index 00000000000..39844f0bc6a
--- /dev/null
+++ b/test/spec/modules/excoBidAdapter_spec.js
@@ -0,0 +1,655 @@
+import {expect} from 'chai';
+import {
+  spec as adapter,
+  createDomain,
+  storage
+} from 'modules/excoBidAdapter';
+import * as utils from 'src/utils.js';
+import {version} from 'package.json';
+import {useFakeTimers} from 'sinon';
+import {BANNER, VIDEO} from '../../../src/mediaTypes';
+import {config} from '../../../src/config';
+import {
+  hashCode,
+  extractPID,
+  extractCID,
+  extractSubDomain,
+  getStorageItem,
+  setStorageItem,
+  tryParseJSON,
+  getUniqueDealId,
+} from '../../../libraries/vidazooUtils/bidderUtils.js';
+
+export const TEST_ID_SYSTEMS = ['criteoId', 'id5id', 'idl_env', 'lipb', 'netId', 'pubcid', 'tdid', 'pubProvidedId'];
+
+const SUB_DOMAIN = 'rtb';
+
+const BID = {
+  'bidId': '2d52001cabd527',
+  'adUnitCode': 'div-gpt-ad-12345-0',
+  'params': {
+    'subDomain': SUB_DOMAIN,
+    'cId': '59db6b3b4ffaa70004f45cdc',
+    'pId': '59ac17c192832d0011283fe3',
+    'bidFloor': 0.1,
+    'ext': {
+      'param1': 'loremipsum',
+      'param2': 'dolorsitamet'
+    }
+  },
+  'placementCode': 'div-gpt-ad-1460505748561-0',
+  'sizes': [[300, 250], [300, 600]],
+  'bidderRequestId': '1fdb5ff1b6eaa7',
+  'bidRequestsCount': 4,
+  'bidderRequestsCount': 3,
+  'bidderWinsCount': 1,
+  'requestId': 'b0777d85-d061-450e-9bc7-260dd54bbb7a',
+  'schain': 'a0819c69-005b-41ed-af06-1be1e0aefefc',
+  'mediaTypes': [BANNER],
+  'ortb2Imp': {
+    'ext': {
+      'gpid': '0123456789',
+      'tid': '56e184c6-bde9-497b-b9b9-cf47a61381ee'
+    }
+  }
+};
+
+const VIDEO_BID = {
+  'bidId': '2d52001cabd527',
+  'adUnitCode': '63550ad1ff6642d368cba59dh5884270560',
+  'bidderRequestId': '12a8ae9ada9c13',
+  'bidRequestsCount': 4,
+  'bidderRequestsCount': 3,
+  'bidderWinsCount': 1,
+  'schain': 'a0819c69-005b-41ed-af06-1be1e0aefefc',
+  'params': {
+    'subDomain': SUB_DOMAIN,
+    'cId': '635509f7ff6642d368cb9837',
+    'pId': '59ac17c192832d0011283fe3',
+    'bidFloor': 0.1
+  },
+  'sizes': [[545, 307]],
+  'mediaTypes': {
+    'video': {
+      'playerSize': [[545, 307]],
+      'context': 'instream',
+      'mimes': [
+        'video/mp4',
+        'application/javascript'
+      ],
+      'protocols': [2, 3, 5, 6],
+      'maxduration': 60,
+      'minduration': 0,
+      'startdelay': 0,
+      'linearity': 1,
+      'api': [2],
+      'placement': 1
+    }
+  },
+  'ortb2Imp': {
+    'ext': {
+      'gpid': '0123456789',
+      'tid': '56e184c6-bde9-497b-b9b9-cf47a61381ee'
+    }
+  }
+}
+
+const BIDDER_REQUEST = {
+  'gdprConsent': {
+    'consentString': 'consent_string',
+    'gdprApplies': true
+  },
+  'gppString': 'gpp_string',
+  'gppSid': [7],
+  'uspConsent': 'consent_string',
+  'refererInfo': {
+    'page': 'https://www.greatsite.com',
+    'ref': 'https://www.somereferrer.com'
+  },
+  'ortb2': {
+    'site': {
+      'content': {
+        'language': 'en'
+      }
+    },
+    'regs': {
+      'gpp': 'gpp_string',
+      'gpp_sid': [7],
+      'coppa': 0
+    },
+    'device': {
+      'sua': {
+        'source': 2,
+        'platform': {
+          'brand': 'Android',
+          'version': ['8', '0', '0']
+        },
+        'browsers': [
+          {'brand': 'Not_A Brand', 'version': ['99', '0', '0', '0']},
+          {'brand': 'Google Chrome', 'version': ['109', '0', '5414', '119']},
+          {'brand': 'Chromium', 'version': ['109', '0', '5414', '119']}
+        ],
+        'mobile': 1,
+        'model': 'SM-G955U',
+        'bitness': '64',
+        'architecture': ''
+      }
+    }
+  }
+};
+
+const SERVER_RESPONSE = {
+  body: {
+    cid: 'testcid123',
+    results: [{
+      'ad': '<iframe>console.log("hello world")</iframe>',
+      'price': 0.8,
+      'creativeId': '12610997325162499419',
+      'exp': 30,
+      'width': 300,
+      'height': 250,
+      'advertiserDomains': ['securepubads.g.doubleclick.net'],
+      'cookies': [{
+        'src': 'https://sync.com',
+        'type': 'iframe'
+      }, {
+        'src': 'https://sync.com',
+        'type': 'img'
+      }]
+    }]
+  }
+};
+
+const VIDEO_SERVER_RESPONSE = {
+  body: {
+    'cid': '635509f7ff6642d368cb9837',
+    'results': [{
+      'ad': '<VAST version=\"3.0\" xmlns:xs=\"http://www.w3.org/2001/XMLSchema\"></VAST>',
+      'advertiserDomains': ['exco.com'],
+      'exp': 60,
+      'width': 545,
+      'height': 307,
+      'mediaType': 'video',
+      'creativeId': '12610997325162499419',
+      'price': 2,
+      'cookies': []
+    }]
+  }
+};
+
+const REQUEST = {
+  data: {
+    width: 300,
+    height: 250,
+    bidId: '2d52001cabd527'
+  }
+};
+
+function getTopWindowQueryParams() {
+  try {
+    const parsedUrl = utils.parseUrl(window.top.document.URL, {decodeSearchAsString: true});
+    return parsedUrl.search;
+  } catch (e) {
+    return '';
+  }
+}
+
+describe('ExcoBidAdapter', function () {
+  describe('validtae spec', function () {
+    it('exists and is a function', function () {
+      expect(adapter.isBidRequestValid).to.exist.and.to.be.a('function');
+    });
+
+    it('exists and is a function', function () {
+      expect(adapter.buildRequests).to.exist.and.to.be.a('function');
+    });
+
+    it('exists and is a function', function () {
+      expect(adapter.interpretResponse).to.exist.and.to.be.a('function');
+    });
+
+    it('exists and is a function', function () {
+      expect(adapter.getUserSyncs).to.exist.and.to.be.a('function');
+    });
+
+    it('exists and is a string', function () {
+      expect(adapter.code).to.exist.and.to.be.a('string');
+    });
+
+    it('exists and contains media types', function () {
+      expect(adapter.supportedMediaTypes).to.exist.and.to.be.an('array').with.length(2);
+      expect(adapter.supportedMediaTypes).to.contain.members([BANNER, VIDEO]);
+    });
+  });
+
+  describe('validate bid requests', function () {
+    it('should require cId', function () {
+      const isValid = adapter.isBidRequestValid({
+        params: {
+          pId: 'pid'
+        }
+      });
+      expect(isValid).to.be.false;
+    });
+
+    it('should require pId', function () {
+      const isValid = adapter.isBidRequestValid({
+        params: {
+          cId: 'cid'
+        }
+      });
+      expect(isValid).to.be.false;
+    });
+
+    it('should validate correctly', function () {
+      const isValid = adapter.isBidRequestValid({
+        params: {
+          cId: 'cid',
+          pId: 'pid'
+        }
+      });
+      expect(isValid).to.be.true;
+    });
+  });
+
+  describe('build requests', function () {
+    let sandbox;
+    before(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {
+        exco: {
+          storageAllowed: true
+        }
+      };
+      sandbox = sinon.sandbox.create();
+      sandbox.stub(Date, 'now').returns(1000);
+    });
+
+    it('should build video request', function () {
+      const hashUrl = hashCode(BIDDER_REQUEST.refererInfo.page);
+      config.setConfig({
+        bidderTimeout: 3000,
+        enableTIDs: true
+      });
+      const requests = adapter.buildRequests([VIDEO_BID], BIDDER_REQUEST);
+      expect(requests).to.have.length(1);
+      expect(requests[0]).to.deep.equal({
+        method: 'POST',
+        url: `${createDomain(SUB_DOMAIN)}/prebid/multi/635509f7ff6642d368cb9837`,
+        data: {
+          adUnitCode: '63550ad1ff6642d368cba59dh5884270560',
+          bidFloor: 0.1,
+          bidId: '2d52001cabd527',
+          bidderVersion: adapter.version,
+          bidderRequestId: '12a8ae9ada9c13',
+          cb: 1000,
+          gdpr: 1,
+          gdprConsent: 'consent_string',
+          usPrivacy: 'consent_string',
+          gppString: 'gpp_string',
+          gppSid: [7],
+          transactionId: '56e184c6-bde9-497b-b9b9-cf47a61381ee',
+          prebidVersion: version,
+          bidRequestsCount: 4,
+          bidderRequestsCount: 3,
+          bidderWinsCount: 1,
+          bidderTimeout: 3000,
+          publisherId: '59ac17c192832d0011283fe3',
+          url: 'https%3A%2F%2Fwww.greatsite.com',
+          referrer: 'https://www.somereferrer.com',
+          res: `${window.top.screen.width}x${window.top.screen.height}`,
+          schain: VIDEO_BID.schain,
+          sizes: ['545x307'],
+          sua: {
+            'source': 2,
+            'platform': {
+              'brand': 'Android',
+              'version': ['8', '0', '0']
+            },
+            'browsers': [
+              {'brand': 'Not_A Brand', 'version': ['99', '0', '0', '0']},
+              {'brand': 'Google Chrome', 'version': ['109', '0', '5414', '119']},
+              {'brand': 'Chromium', 'version': ['109', '0', '5414', '119']}
+            ],
+            'mobile': 1,
+            'model': 'SM-G955U',
+            'bitness': '64',
+            'architecture': ''
+          },
+          uniqueDealId: `${hashUrl}_${Date.now().toString()}`,
+          uqs: getTopWindowQueryParams(),
+          mediaTypes: {
+            video: {
+              api: [2],
+              context: 'instream',
+              linearity: 1,
+              maxduration: 60,
+              mimes: [
+                'video/mp4',
+                'application/javascript'
+              ],
+              minduration: 0,
+              placement: 1,
+              playerSize: [[545, 307]],
+              protocols: [2, 3, 5, 6],
+              startdelay: 0
+            }
+          },
+          gpid: '0123456789',
+          cat: [],
+          contentData: [],
+          contentLang: 'en',
+          isStorageAllowed: true,
+          pagecat: [],
+          userData: [],
+          coppa: 0
+        }
+      });
+    });
+
+    it('should build banner request for each size', function () {
+      const hashUrl = hashCode(BIDDER_REQUEST.refererInfo.page);
+      config.setConfig({
+        bidderTimeout: 3000,
+        enableTIDs: true
+      });
+      const requests = adapter.buildRequests([BID], BIDDER_REQUEST);
+      expect(requests).to.have.length(1);
+      expect(requests[0]).to.deep.equal({
+        method: 'POST',
+        url: `${createDomain(SUB_DOMAIN)}/prebid/multi/59db6b3b4ffaa70004f45cdc`,
+        data: {
+          gdprConsent: 'consent_string',
+          gdpr: 1,
+          gppString: 'gpp_string',
+          gppSid: [7],
+          usPrivacy: 'consent_string',
+          bidRequestsCount: 4,
+          bidderRequestsCount: 3,
+          bidderWinsCount: 1,
+          bidderTimeout: 3000,
+          bidderRequestId: '1fdb5ff1b6eaa7',
+          transactionId: '56e184c6-bde9-497b-b9b9-cf47a61381ee',
+          sizes: ['300x250', '300x600'],
+          sua: {
+            'source': 2,
+            'platform': {
+              'brand': 'Android',
+              'version': ['8', '0', '0']
+            },
+            'browsers': [
+              {'brand': 'Not_A Brand', 'version': ['99', '0', '0', '0']},
+              {'brand': 'Google Chrome', 'version': ['109', '0', '5414', '119']},
+              {'brand': 'Chromium', 'version': ['109', '0', '5414', '119']}
+            ],
+            'mobile': 1,
+            'model': 'SM-G955U',
+            'bitness': '64',
+            'architecture': ''
+          },
+          url: 'https%3A%2F%2Fwww.greatsite.com',
+          referrer: 'https://www.somereferrer.com',
+          cb: 1000,
+          bidFloor: 0.1,
+          bidId: '2d52001cabd527',
+          adUnitCode: 'div-gpt-ad-12345-0',
+          publisherId: '59ac17c192832d0011283fe3',
+          uniqueDealId: `${hashUrl}_${Date.now().toString()}`,
+          bidderVersion: adapter.version,
+          prebidVersion: version,
+          schain: BID.schain,
+          res: `${window.top.screen.width}x${window.top.screen.height}`,
+          mediaTypes: [BANNER],
+          gpid: '0123456789',
+          uqs: getTopWindowQueryParams(),
+          'ext.param1': 'loremipsum',
+          'ext.param2': 'dolorsitamet',
+          cat: [],
+          contentData: [],
+          contentLang: 'en',
+          isStorageAllowed: true,
+          pagecat: [],
+          userData: [],
+          coppa: 0
+        }
+      });
+    });
+
+    after(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {};
+      sandbox.restore();
+    });
+  });
+  describe('getUserSyncs', function () {
+    it('should have valid user sync with iframeEnabled', function () {
+      const result = adapter.getUserSyncs({iframeEnabled: true}, [SERVER_RESPONSE]);
+
+      expect(result).to.deep.equal([{
+        type: 'iframe',
+        url: 'https://cs.exco-pb.com/api/sync/iframe/?cid=testcid123&gdpr=0&gdpr_consent=&us_privacy='
+      }]);
+    });
+
+    it('should have valid user sync with cid on response', function () {
+      const result = adapter.getUserSyncs({iframeEnabled: true}, [SERVER_RESPONSE]);
+      expect(result).to.deep.equal([{
+        type: 'iframe',
+        url: 'https://cs.exco-pb.com/api/sync/iframe/?cid=testcid123&gdpr=0&gdpr_consent=&us_privacy='
+      }]);
+    });
+
+    it('should have valid user sync with pixelEnabled', function () {
+      const result = adapter.getUserSyncs({pixelEnabled: true}, [SERVER_RESPONSE]);
+
+      expect(result).to.deep.equal([{
+        'url': 'https://cs.exco-pb.com/api/sync/image/?cid=testcid123&gdpr=0&gdpr_consent=&us_privacy=',
+        'type': 'image'
+      }]);
+    })
+  });
+
+  describe('interpret response', function () {
+    it('should return empty array when there is no response', function () {
+      const responses = adapter.interpretResponse(null);
+      expect(responses).to.be.empty;
+    });
+
+    it('should return empty array when there is no ad', function () {
+      const responses = adapter.interpretResponse({price: 1, ad: ''});
+      expect(responses).to.be.empty;
+    });
+
+    it('should return empty array when there is no price', function () {
+      const responses = adapter.interpretResponse({price: null, ad: 'great ad'});
+      expect(responses).to.be.empty;
+    });
+
+    it('should return an array of interpreted banner responses', function () {
+      const responses = adapter.interpretResponse(SERVER_RESPONSE, REQUEST);
+      expect(responses).to.have.length(1);
+      expect(responses[0]).to.deep.equal({
+        requestId: '2d52001cabd527',
+        cpm: 0.8,
+        width: 300,
+        height: 250,
+        creativeId: '12610997325162499419',
+        currency: 'USD',
+        netRevenue: true,
+        ttl: 30,
+        ad: '<iframe>console.log("hello world")</iframe>',
+        meta: {
+          advertiserDomains: ['securepubads.g.doubleclick.net']
+        }
+      });
+    });
+
+    it('should get meta from response metaData', function () {
+      const serverResponse = utils.deepClone(SERVER_RESPONSE);
+      serverResponse.body.results[0].metaData = {
+        advertiserDomains: ['exco.com'],
+        agencyName: 'Agency Name',
+      };
+      const responses = adapter.interpretResponse(serverResponse, REQUEST);
+      expect(responses[0].meta).to.deep.equal({
+        advertiserDomains: ['exco.com'],
+        agencyName: 'Agency Name'
+      });
+    });
+
+    it('should return an array of interpreted video responses', function () {
+      const responses = adapter.interpretResponse(VIDEO_SERVER_RESPONSE, REQUEST);
+      expect(responses).to.have.length(1);
+      expect(responses[0]).to.deep.equal({
+        requestId: '2d52001cabd527',
+        cpm: 2,
+        width: 545,
+        height: 307,
+        mediaType: 'video',
+        creativeId: '12610997325162499419',
+        currency: 'USD',
+        netRevenue: true,
+        ttl: 60,
+        vastXml: '<VAST version=\"3.0\" xmlns:xs=\"http://www.w3.org/2001/XMLSchema\"></VAST>',
+        meta: {
+          advertiserDomains: ['exco.com']
+        }
+      });
+    });
+
+    it('should take default TTL', function () {
+      const serverResponse = utils.deepClone(SERVER_RESPONSE);
+      delete serverResponse.body.results[0].exp;
+      const responses = adapter.interpretResponse(serverResponse, REQUEST);
+      expect(responses).to.have.length(1);
+      expect(responses[0].ttl).to.equal(300);
+    });
+  });
+
+  describe('user id system', function () {
+    TEST_ID_SYSTEMS.forEach((idSystemProvider) => {
+      const id = Date.now().toString();
+      const bid = utils.deepClone(BID);
+
+      const userId = (function () {
+        switch (idSystemProvider) {
+          case 'lipb':
+            return {lipbid: id};
+          case 'id5id':
+            return {uid: id};
+          default:
+            return id;
+        }
+      })();
+
+      bid.userId = {
+        [idSystemProvider]: userId
+      };
+
+      it(`should include 'uid.${idSystemProvider}' in request params`, function () {
+        const requests = adapter.buildRequests([bid], BIDDER_REQUEST);
+        expect(requests[0].data[`uid.${idSystemProvider}`]).to.equal(id);
+      });
+    });
+  });
+
+  describe('alternate param names extractors', function () {
+    it('should return undefined when param not supported', function () {
+      const cid = extractCID({'c_id': '1'});
+      const pid = extractPID({'p_id': '1'});
+      const subDomain = extractSubDomain({'sub_domain': 'prebid'});
+      expect(cid).to.be.undefined;
+      expect(pid).to.be.undefined;
+      expect(subDomain).to.be.undefined;
+    });
+
+    it('should return value when param supported', function () {
+      const cid = extractCID({'cId': '1'});
+      const pid = extractPID({'pId': '2'});
+      const subDomain = extractSubDomain({'subDomain': 'prebid'});
+      expect(cid).to.be.equal('1');
+      expect(pid).to.be.equal('2');
+      expect(subDomain).to.be.equal('prebid');
+    });
+  });
+
+  describe('unique deal id', function () {
+    before(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {
+        exco: {
+          storageAllowed: true
+        }
+      };
+    });
+    after(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {};
+    });
+    const key = 'myKey';
+    let uniqueDealId;
+    beforeEach(() => {
+      uniqueDealId = getUniqueDealId(storage, key, 0);
+    })
+
+    it('should get current unique deal id', function (done) {
+      // waiting some time so `now` will become past
+      setTimeout(() => {
+        const current = getUniqueDealId(storage, key);
+        expect(current).to.be.equal(uniqueDealId);
+        done();
+      }, 200);
+    });
+
+    it('should get new unique deal id on expiration', function (done) {
+      setTimeout(() => {
+        const current = getUniqueDealId(storage, key, 100);
+        expect(current).to.not.be.equal(uniqueDealId);
+        done();
+      }, 200)
+    });
+  });
+
+  describe('storage utils', function () {
+    before(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {
+        exco: {
+          storageAllowed: true
+        }
+      };
+    });
+    after(function () {
+      $$PREBID_GLOBAL$$.bidderSettings = {};
+    });
+    it('should get value from storage with create param', function () {
+      const now = Date.now();
+      const clock = useFakeTimers({
+        shouldAdvanceTime: true,
+        now
+      });
+      setStorageItem(storage, 'myKey', 2020);
+      const {value, created} = getStorageItem(storage, 'myKey');
+      expect(created).to.be.equal(now);
+      expect(value).to.be.equal(2020);
+      expect(typeof value).to.be.equal('number');
+      expect(typeof created).to.be.equal('number');
+      clock.restore();
+    });
+
+    it('should get external stored value', function () {
+      const value = 'superman'
+      window.localStorage.setItem('myExternalKey', value);
+      const item = getStorageItem(storage, 'myExternalKey');
+      expect(item).to.be.equal(value);
+    });
+
+    it('should parse JSON value', function () {
+      const data = JSON.stringify({event: 'send'});
+      const {event} = tryParseJSON(data);
+      expect(event).to.be.equal('send');
+    });
+
+    it('should get original value on parse fail', function () {
+      const value = 21;
+      const parsed = tryParseJSON(value);
+      expect(typeof parsed).to.be.equal('number');
+      expect(parsed).to.be.equal(value);
+    });
+  });
+});