---
title: How custom middleware put HubSpot at the centre of Campbell Property Group's sales stack (Clone) (Clone)
description: Campbell Property Group unified five property brands under one HubSpot architecture with custom integrations built by Engaging.io.
image: https://www.engaging.io/hubfs/eio-2026/eio-web-2026/our-work/image-3.webp
---

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# How custom middleware put HubSpot at the centre of Campbell Property Group's sales stack (Clone) (Clone)

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How custom middleware put HubSpot at the centre of Campbell Property Group's sales stack (Clone) (Clone)

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Campbell Property Group (CPG) is a family-owned residential developer with five business units: Clarendon Homes NSW, Clarendon Homes QLD, Domaine Homes, CPG Estates and home loan brokerage Loan Market Elevate (LME). Engaging.io built the custom middleware that connects HubSpot to the four specialist platforms behind every CPG sale.

 Before EIO, our teams were operating across five separate systems with no single view of a deal or a build, and no reliable way to act on it. Now, everyone from sales to service is working from the same data in real time - and it's changed how we run the business. That's given us visibility we've never had before across the group.

Schliebs, R.  
CTO

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