diff --git a/modules/ipromBidAdapter.js b/modules/ipromBidAdapter.js
new file mode 100644
index 00000000000..e328cd1ec5d
--- /dev/null
+++ b/modules/ipromBidAdapter.js
@@ -0,0 +1,72 @@
+import * as utils from '../src/utils.js';
+import { registerBidder } from '../src/adapters/bidderFactory.js';
+
+const BIDDER_CODE = 'iprom';
+const ENDPOINT_URL = 'https://core.iprom.net/programmatic';
+const VERSION = 'v1.0.0';
+const DEFAULT_CURRENCY = 'EUR';
+const DEFAULT_NETREVENUE = true;
+const DEFAULT_TTL = 360;
+
+export const spec = {
+  code: BIDDER_CODE,
+  isBidRequestValid: function ({ bidder, params = {} } = {}) {
+    // id parameter checks
+    if (!params.id) {
+      utils.logError(`${bidder}: Parameter 'id' missing`);
+      return false;
+    } else if (typeof params.id !== 'string') {
+      utils.logError(`${bidder}: Parameter 'id' needs to be a string`);
+      return false;
+    }
+    // dimension parameter checks
+    if (!params.dimension) {
+      utils.logError(`${bidder}: Required parameter 'dimension' missing`);
+      return false;
+    } else if (typeof params.dimension !== 'string') {
+      utils.logError(`${bidder}: Parameter 'dimension' needs to be a string`);
+      return false;
+    }
+
+    return true;
+  },
+
+  buildRequests: function (validBidRequests, bidderRequest) {
+    const payload = {
+      bids: validBidRequests,
+      referer: bidderRequest.refererInfo,
+      version: VERSION
+    };
+    const payloadString = JSON.stringify(payload);
+
+    return {
+      method: 'POST',
+      url: ENDPOINT_URL,
+      data: payloadString
+    };
+  },
+
+  interpretResponse: function (serverResponse, request) {
+    let bids = serverResponse.body;
+
+    const bidResponses = [];
+
+    bids.forEach(bid => {
+      bidResponses.push({
+        ad: bid.ad,
+        requestId: bid.requestId,
+        cpm: bid.cpm,
+        width: bid.width,
+        height: bid.height,
+        creativeId: bid.creativeId,
+        currency: bid.currency || DEFAULT_CURRENCY,
+        netRevenue: bid.netRevenue || DEFAULT_NETREVENUE,
+        ttl: bid.ttl || DEFAULT_TTL,
+      });
+    });
+
+    return bidResponses;
+  },
+}
+
+registerBidder(spec);
diff --git a/modules/ipromBidAdapter.md b/modules/ipromBidAdapter.md
new file mode 100644
index 00000000000..f7124e7c89c
--- /dev/null
+++ b/modules/ipromBidAdapter.md
@@ -0,0 +1,34 @@
+# Overview
+
+```
+Module Name: Iprom PreBid Adapter
+Module Type: Bidder Adapter
+Maintainer: support@iprom.si
+```
+
+# Description
+
+Module that connects to Iprom's demand sources
+
+# Test Parameters
+```
+    var adUnits = [
+        {
+            code: 'test-div',
+            mediaTypes: {
+                banner: {
+                    sizes: [[300, 250]],  // a display size
+                }
+            },
+            bids: [
+                {
+                    bidder: "iprom",
+                    params: {
+                        id: '1234',
+                        dimension: '300x250'
+                    }
+                }
+            ]
+        }
+    ];
+```
diff --git a/test/spec/modules/ipromBidAdapter_spec.js b/test/spec/modules/ipromBidAdapter_spec.js
new file mode 100644
index 00000000000..535cc332b21
--- /dev/null
+++ b/test/spec/modules/ipromBidAdapter_spec.js
@@ -0,0 +1,193 @@
+import {expect} from 'chai';
+import {spec} from 'modules/ipromBidAdapter.js';
+
+describe('iPROM Adapter', function () {
+  let bidRequests;
+  let bidderRequest;
+
+  beforeEach(function () {
+    bidRequests = [
+      {
+        bidder: 'iprom',
+        params: {
+          id: '1234',
+          dimension: '300x250',
+        },
+        adUnitCode: '/19966331/header-bid-tag-1',
+        mediaTypes: {
+          banner: {
+            sizes: [[300, 250], [300, 600]],
+          }
+        },
+        bidId: '29a72b151f7bd3',
+        auctionId: 'e36abb27-g3b1-1ad6-8a4c-701c8919d3hh',
+        bidderRequestId: '2z76da40m1b3cb8',
+        transactionId: 'j51lhf58-1ad6-g3b1-3j6s-912c9493g0gu'
+      }
+    ];
+
+    bidderRequest = {
+      timeout: 3000,
+      refererInfo: {
+        referer: 'https://adserver.si/index.html',
+        reachedTop: true,
+        numIframes: 1,
+        stack: [
+          'https://adserver.si/index.html',
+          'https://adserver.si/iframe1.html',
+        ]
+      }
+    }
+  });
+
+  describe('validating bids', function () {
+    it('should accept valid bid', function () {
+      let validBid = {
+        bidder: 'iprom',
+        params: {
+          id: '1234',
+          dimension: '300x250',
+        },
+      };
+
+      const isValid = spec.isBidRequestValid(validBid);
+
+      expect(isValid).to.equal(true);
+    });
+
+    it('should reject bid if missing dimension and id', function () {
+      let invalidBid = {
+        bidder: 'iprom',
+        params: {}
+      };
+
+      const isValid = spec.isBidRequestValid(invalidBid);
+
+      expect(isValid).to.equal(false);
+    });
+
+    it('should reject bid if missing dimension', function () {
+      let invalidBid = {
+        bidder: 'iprom',
+        params: {
+          id: '1234',
+        }
+      };
+
+      const isValid = spec.isBidRequestValid(invalidBid);
+
+      expect(isValid).to.equal(false);
+    });
+
+    it('should reject bid if dimension is not a string', function () {
+      let invalidBid = {
+        bidder: 'iprom',
+        params: {
+          id: '1234',
+          dimension: 404,
+        }
+      };
+
+      const isValid = spec.isBidRequestValid(invalidBid);
+
+      expect(isValid).to.equal(false);
+    });
+
+    it('should reject bid if missing id', function () {
+      let invalidBid = {
+        bidder: 'iprom',
+        params: {
+          dimension: '300x250',
+        }
+      };
+
+      const isValid = spec.isBidRequestValid(invalidBid);
+
+      expect(isValid).to.equal(false);
+    });
+
+    it('should reject bid if id is not a string', function () {
+      let invalidBid = {
+        bidder: 'iprom',
+        params: {
+          id: 1234,
+          dimension: '300x250',
+        }
+      };
+
+      const isValid = spec.isBidRequestValid(invalidBid);
+
+      expect(isValid).to.equal(false);
+    });
+  });
+
+  describe('building requests', function () {
+    it('should go to correct endpoint', function () {
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+
+      expect(request.method).to.exist;
+      expect(request.method).to.equal('POST');
+      expect(request.url).to.exist;
+      expect(request.url).to.equal('https://core.iprom.net/programmatic');
+    });
+
+    it('should add referer info', function () {
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+      const requestparse = JSON.parse(request.data);
+
+      expect(requestparse.referer).to.exist;
+      expect(requestparse.referer.referer).to.equal('https://adserver.si/index.html');
+    });
+
+    it('should add adapter version', function () {
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+      const requestparse = JSON.parse(request.data);
+
+      expect(requestparse.version).to.exist;
+    });
+
+    it('should contain id and dimension', function () {
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+      const requestparse = JSON.parse(request.data);
+
+      expect(requestparse.bids[0].params.id).to.equal('1234');
+      expect(requestparse.bids[0].params.dimension).to.equal('300x250');
+    });
+  });
+
+  describe('handling responses', function () {
+    it('should return complete bid response', function () {
+      const serverResponse = {
+        body: [{
+          requestId: '29a72b151f7bd3',
+          cpm: 0.5,
+          width: '300',
+          height: '250',
+          creativeId: 1234,
+          ad: '<html><head><title>Iprom Header bidding example</title></head><body><img src="https://iprom.si/files/2015/08/iprom-logo.svg"></body></html>'
+        }
+        ]};
+
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+      const bids = spec.interpretResponse(serverResponse, request);
+
+      expect(bids).to.be.lengthOf(1);
+      expect(bids[0].requestId).to.equal('29a72b151f7bd3');
+      expect(bids[0].cpm).to.equal(0.5);
+      expect(bids[0].width).to.equal('300');
+      expect(bids[0].height).to.equal('250');
+      expect(bids[0].ad).to.have.length.above(1);
+    });
+
+    it('should return empty bid response', function () {
+      const emptyServerResponse = {
+        body: []
+      };
+
+      const request = spec.buildRequests(bidRequests, bidderRequest);
+      const bids = spec.interpretResponse(emptyServerResponse, request);
+
+      expect(bids).to.be.lengthOf(0);
+    });
+  });
+});