diff --git a/modules/rtbsolutionsBidAdapter.js b/modules/rtbsolutionsBidAdapter.js
new file mode 100644
index 00000000000..ad75b9de25a
--- /dev/null
+++ b/modules/rtbsolutionsBidAdapter.js
@@ -0,0 +1,100 @@
+import { registerBidder } from '../src/adapters/bidderFactory';
+import * as utils from '../src/utils';
+import { ajax } from '../src/ajax';
+
+const BIDDER_CODE = 'rtbsolutions';
+const ENDPOINT_URL = 'https://dsp-eu-lb.rtbsolutions.pro/bid/hb';
+
+export const spec = {
+  version: '1.0',
+  code: BIDDER_CODE,
+  aliases: ['rtbss'], // short code
+  nurls: {},
+  isBidRequestValid: function(bid) {
+    return !!bid.params.blockId;
+  },
+  buildRequests: function(validBidRequests, bidderRequest) {
+    let req = [];
+
+    bidderRequest.bids.forEach(item => {
+      const width = item.sizes[0][0];
+      const height = item.sizes[0][1];
+
+      let imp = {
+        referer: bidderRequest.refererInfo.referer,
+        ua: navigator.userAgent,
+        lang: this.getLanguage(),
+        domain: this.getDomain(),
+        width: width,
+        height: height,
+        type: 'banner',
+      };
+
+      if (item.params.s1 !== undefined) imp.s1 = item.params.s1;
+      if (item.params.s2 !== undefined) imp.s2 = item.params.s2;
+      if (item.params.s3 !== undefined) imp.s3 = item.params.s3;
+      if (item.params.s4 !== undefined) imp.s4 = item.params.s4;
+
+      req.push({
+        bid_id: item.bidId,
+        block_id: item.params.blockId,
+        ver: this.version,
+        imp
+      });
+    });
+
+    return {
+      method: 'POST',
+      url: ENDPOINT_URL,
+      data: req,
+      options: {
+        contentType: 'application/json'
+      }
+    }
+  },
+  interpretResponse: function(serverResponse, request) {
+    const bidResponses = [];
+
+    serverResponse.body.forEach(item => {
+      this.nurls[item.bid_id] = item.nurl;
+
+      const bidResponse = {
+        requestId: item.bid_id,
+        cpm: item.cpm,
+        width: item.width,
+        height: item.height,
+        creativeId: item.creative_id,
+        currency: item.currency,
+        netRevenue: true,
+        ttl: 360,
+        ad: item.ad,
+      };
+
+      bidResponses.push(bidResponse);
+    });
+
+    return bidResponses;
+  },
+  onBidWon: function(bid) {
+    ajax(this.nurls[bid.requestId], null);
+  },
+
+  getLanguage() {
+    const language = navigator.language ? 'language' : 'userLanguage';
+    const lang2 = navigator[language].split('-')[0];
+    if (lang2.length === 2 || lang2.length === 3) {
+      return lang2;
+    }
+    return '';
+  },
+  getDomain() {
+    if (!utils.inIframe()) {
+      return window.location.hostname
+    }
+    let origins = window.document.location.ancestorOrigins;
+    if (origins && origins.length > 0) {
+      return origins[origins.length - 1]
+    }
+  }
+};
+registerBidder(spec);
diff --git a/modules/rtbsolutionsBidAdapter.md b/modules/rtbsolutionsBidAdapter.md
new file mode 100644
index 00000000000..e671de306a0
--- /dev/null
+++ b/modules/rtbsolutionsBidAdapter.md
@@ -0,0 +1,128 @@
+# Overview
+
+Module Name: Rtbsolutions Bidder Adapter
+Module Type: Bidder Adapter
+Maintainer: info@rtbsolutions.pro
+
+# Description
+
+You can use this adapter to get a bid from rtbsolutions.
+
+About us: http://rtbsolutions.pro
+
+
+# Test Parameters
+```javascript
+    var adUnits = [
+                {
+                    code: '/19968336/header-bid-tag-1',
+                    mediaTypes: {
+                        banner: {
+                            sizes: sizes
+                        }
+                    },
+                    bids: [{
+                        bidder: 'rtbsolutions',
+                        params: {
+                            blockId: 777,
+                            s1: 'sub_1',
+                            s2: 'sub_2',
+                            s3: 'sub_3',
+                            s4: 'sub_4'
+                        }
+                    }]
+                }];
+```
+
+Where:
+
+* blockId - Block ID from platform (required)
+* s1..s4 - Sub Id (optional)
+
+# Example page
+
+```html
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Prebid</title>
+    <script async src="//www.googletagservices.com/tag/js/gpt.js"></script>
+    <script async src="prebid.js"></script>
+    <script>
+        var sizes = [
+            [640, 480]
+        ];
+        var PREBID_TIMEOUT = 1000;
+        var FAILSAFE_TIMEOUT = 3000;
+
+        var adUnits = [
+            {
+                code: '/19968336/header-bid-tag-1',
+                mediaTypes: {
+                    banner: {
+                        sizes: sizes
+                    }
+                },
+                bids: [{
+                    bidder: 'rtbsolutions',
+                    params: {
+                        blockId: 777
+                    }
+                }]
+            }];
+
+        // ======== DO NOT EDIT BELOW THIS LINE =========== //
+        var googletag = googletag || {};
+        googletag.cmd = googletag.cmd || [];
+        googletag.cmd.push(function() {
+            googletag.pubads().disableInitialLoad();
+        });
+
+        var pbjs = pbjs || {};
+        pbjs.que = pbjs.que || [];
+
+        pbjs.que.push(function() {
+            pbjs.addAdUnits(adUnits);
+            pbjs.requestBids({
+                bidsBackHandler: initAdserver,
+                timeout: PREBID_TIMEOUT
+            });
+        });
+
+        function initAdserver() {
+            if (pbjs.initAdserverSet) return;
+            pbjs.initAdserverSet = true;
+            googletag.cmd.push(function() {
+                pbjs.setTargetingForGPTAsync && pbjs.setTargetingForGPTAsync();
+                googletag.pubads().refresh();
+            });
+        }
+
+        // in case PBJS doesn't load
+        setTimeout(function() {
+            initAdserver();
+        }, FAILSAFE_TIMEOUT);
+
+        googletag.cmd.push(function() {
+            googletag.defineSlot('/19968336/header-bid-tag-1', sizes, 'div-1')
+                    .addService(googletag.pubads());
+            googletag.pubads().enableSingleRequest();
+            googletag.enableServices();
+        });
+
+    </script>
+</head>
+<body>
+    <h1>Prebid</h1>
+    <h5>Div-1</h5>
+    <div id='div-1'>
+        <script type='text/javascript'>
+            googletag.cmd.push(function() {
+                googletag.display('div-1');
+            });
+        </script>
+    </div>
+</body>
+</html>
+```
diff --git a/test/spec/modules/rtbsolutionsBidAdapter_spec.js b/test/spec/modules/rtbsolutionsBidAdapter_spec.js
new file mode 100644
index 00000000000..a9ffcd2ce4b
--- /dev/null
+++ b/test/spec/modules/rtbsolutionsBidAdapter_spec.js
@@ -0,0 +1,62 @@
+import { expect } from 'chai';
+import { spec } from 'modules/rtbsolutionsBidAdapter';
+
+describe('rtbsolutionsBidAdapterTests', function () {
+  it('validate_pub_params_1', function () {
+    expect(spec.isBidRequestValid({
+      bidder: 'rtbsolutions',
+      params: {
+        blockId: 777
+      }
+    })).to.equal(true);
+  });
+  it('validate_pub_params_2', function () {
+    expect(spec.isBidRequestValid({
+      bidder: 'rtbsolutions',
+      params: {
+        s1: 'test'
+      }
+    })).to.equal(false);
+  });
+  it('validate_generated_params', function () {
+    let bidderRequest = {
+      bids: [],
+      refererInfo: {
+        referer: ''
+      }
+    };
+    bidderRequest.bids.push({
+      bidId: 'bid1234',
+      bidder: 'rtbsolutions',
+      params: {blockId: 777},
+      sizes: [[240, 400]]
+    });
+    let request = spec.buildRequests(true, bidderRequest);
+    let req_data = request.data[0];
+    expect(req_data.bid_id).to.equal('bid1234');
+  });
+  it('validate_response_params', function () {
+    let serverResponse = {
+      body: [{
+        ad: 'Ad html',
+        bid_id: 'bid1234',
+        cpm: 1,
+        creative_id: 1,
+        height: 480,
+        nurl: 'http://test.test',
+        width: 640,
+        currency: 'USD',
+      }]
+    };
+    let bids = spec.interpretResponse(serverResponse);
+    expect(bids).to.have.lengthOf(1);
+    let bid = bids[0];
+    expect(bid.cpm).to.equal(1);
+    expect(bid.currency).to.equal('USD');
+    expect(bid.width).to.equal(640);
+    expect(bid.height).to.equal(480);
+    expect(bid.netRevenue).to.equal(true);
+    expect(bid.requestId).to.equal('bid1234');
+    expect(bid.ad).to.equal('Ad html');
+  });
+});