CK Software Group | SaaS Platforms for Finance, Sales & Property Operations
UK-Led SaaS Portfolio

Three focused platforms for control, visibility and growth.

CK Software Group develops modern SaaS products for organisations that need stronger operational control, clearer information flow and better commercial visibility. Our portfolio brings together ConstructSum, Unylo and SiteOn — three specialist platforms for project finance, sales operations and residential property management.

3 Products Focused SaaS platforms under one product-led software group.
Cloud Native Built around scalable Microsoft Cloud architecture and secure delivery.
B2B Focus Designed for operationally complex organisations and commercial teams.
Portfolio Overview

Distinct SaaS brands with one shared product philosophy.

ConstructSum logo

ConstructSumFinancial and contract management for project-driven organisations.

Project finance
Unylo logo

UnyloCRM, partner collaboration, direct sales portal and sales enablement.

Sales operations
SiteOn logo

SiteOnResident communication and operational control for modern estate management.

Property operations
Product Portfolio

Three SaaS products. Three high-value operating problems.

Each product has a clear market role. ConstructSum brings financial precision to project and contract workflows. Unylo connects CRM, partners and direct sales. SiteOn simplifies communication and operational control across residential estates.

Financial & Contract Management

Project financial control without spreadsheet dependency.

ConstructSum centralises valuations, variations, retentions, staged payments, cost codes, purchase orders, tendering, approvals and reporting for contract-driven industries.

Valuations Variations Retentions Cash Flow
  • Designed for construction, infrastructure, real estate, manufacturing, energy and public-sector style projects.
  • Creates clearer visibility across financial commitments, change control and project performance.
  • Supports standalone use or integration into wider finance, ERP and reporting environments.
CRM, Partner Portal & Direct Sales Portal

Sales operations, partners and B2B buyers in one ecosystem.

Unylo connects leads, opportunities, quotes, orders, invoices, products, price lists, partner collaboration, direct customer ordering and bulk email workflows.

CRM PRM Direct Sales Bulk Email
  • Gives sales teams a structured platform for pipeline, activity and quote-to-order management.
  • Extends visibility to partners through a controlled partner portal and shared project workflows.
  • Enables B2B customers to place orders through a CRM-integrated Direct Sales Portal.
Residential & Estate Operations

Replace inbox-led property management with one controlled platform.

SiteOn supports resident communication, service charge transparency, repairs, suppliers, budgets, documents and management reporting for residential estates.

Residents Repairs Documents Reporting
  • Built for residential block management, premium apartment estates and managing agent workflows.
  • Improves resident trust by making communication, requests and updates easier to manage.
  • Helps standardise operations across buildings, suppliers, documents and management teams.
Platform Detail

Designed around real operating pressure.

The portfolio is intentionally focused on workflows where poor visibility creates cost, delay, missed revenue, fragmented communication or management friction.

Financial control for complex, contract-driven projects.

ConstructSum is built for organisations managing capital-intensive work across construction, infrastructure, real estate, manufacturing, energy and related project environments. It gives commercial teams a structured way to manage valuations, progress claims, variations, retentions, cost tracking, approvals and reporting.

Core workflowsValuations, change orders, staged payments, cost codes and tender management.
Commercial valueImproved margin control, fewer blind spots and stronger audit-readiness.
UsersQS teams, commercial managers, project managers, finance controllers and directors.
PositioningStandalone financial control layer or integrated project finance platform.
ConstructSumProject Finance Control Layer
Commercial ledger Live forecast
Valuation certified£420k
Variation pending£86k
Retention tracked5%
Approved value£4.8M
Open variations12
Approval flow
01Contract sums and cost codes
02Valuations and approvals
03Cash flow and CVR reporting

A connected sales operating system for teams, partners and buyers.

Unylo is designed to simplify fragmented sales operations. It combines CRM, partner collaboration, customer self-service ordering, quotes, orders, invoices, products, pricing, dashboards, email marketing and workflow automation into one connected platform.

CRMManage leads, opportunities, activities, quotes, orders and invoices.
Partner PortalGive partners controlled visibility into opportunities, projects and collaboration workflows.
Direct Sales PortalEnable B2B buyers to order through a CRM-integrated customer-facing portal.
Growth toolingBulk email, reporting, goals, reminders and machine-learning supported insights.
UnyloConnected Sales & Partner Ecosystem
Unylo connecting sales teams, channel partners and B2B buyers
CRMSales teams aligned around one customer view
PRMChannel partners connected to shared opportunities
DSPB2B buyers ordering through a digital portal

Operational control for residential communities and estate teams.

SiteOn is positioned for managing agents, residential blocks and premium managed estates that need to move away from inbox-led administration. It helps centralise resident communication, repairs, documents, service charge visibility, suppliers, budgets and management reporting.

Resident experienceClearer updates, requests and communication in a controlled digital environment.
Estate operationsRepairs, suppliers, documents, budgets and day-to-day workflow visibility.
Management valueBetter reporting, standardisation and transparency for RMC, RTM and freeholder stakeholders.
Ideal fitResidential block management, estate teams and premium apartment environments.
SiteOnWeb + Mobile Residential Operations Platform
SiteOn desktop dashboard screenshot SiteOn mobile app screenshot
Web dashboardManagement teams get the full operational and reporting view
Mobile experienceResidents and users can interact with key services on the go
One platformCommunication, maintenance, documents and visibility in one connected environment
Shared Standards

Premium SaaS foundations across the portfolio.

Although each CK Software Group platform serves a different business area, the product philosophy is consistent: clear workflows, secure cloud delivery, stronger governance and software that makes complex operations easier to manage.

Microsoft Cloud foundation

Built around scalable Azure and Entra ID architecture principles, with security, resilience and cloud performance in mind.

Operational visibility

Designed to replace fragmented spreadsheets, disconnected systems and inbox-led processes with clear operating control.

Role-based access

Supports secure, permission-aware experiences so users see what they need while sensitive workflows remain controlled.

Enterprise-ready thinking

Built for organisations that need more structure, better reporting and a more credible SaaS layer around critical work.

Explore the right CK Software Group platform.

Whether your priority is project financial control, sales operations, partner enablement or residential property management, CK Software Group has a product built around the workflow you need to improve.