What Integrity Software does

Integrity Software Systems Ltd, headquartered in Lincoln, UK with a regional office in Dublin, is a private construction-industry software vendor that has operated for over 40 years (founded 1984). The company develops and sells Evolution Mx, a modular, browser-based and cloud-hosted construction accounting and management platform purpose-built for the sector. The platform spans three commercial tiers — Lite (for £1m-£5m turnover businesses), Standard (£10m-£100m), and Enterprise (£100m+) — and bundles core financial modules (Contract Management, Purchase Ledger, Subcontractor Management, Cash Book, Nominal Ledger, Payroll, Sales Ledger) with add-ons such as Invoice Register, CVR (Cost Value Reconciliation), Business Analytics, Plant, Mobile App, Time Portal, and the Works Orders module for Mechanical & Electrical contractors. It also holds sub-brands StreamBIM (cloud 3D BIM collaboration), esti-mate (construction estimating), and Trader (ePOS for building merchants).

The technology stack is built in-house with no third-party bolt-ons, supporting construction-specific compliance features including direct integration with HMRC (UK CIS) and ROS (Irish RCT) for subcontractor verification, Making Tax Digital compatibility, and jurisdiction-specific capabilities such as retentions, applications for payment, and certifications. The most recent AI-relevant feature is Smart OCR Invoice Capture (2024), a narrow process-automation capability within the Invoice Register. Integrity Software is a subsidiary of JDM Technology Group, a global construction software group serving 18,000+ customers with 600+ staff across the Americas, Europe, Middle East, Australia, and Asia.

The business operates a subscription-based revenue model (quarterly billing for Lite, monthly for Standard/Enterprise) complemented by a 10-person Professional Services team for implementation, training, and customization. Go-to-market is direct enterprise field sales with dedicated UK and Ireland sales lines, supplemented by an active webinar engine, case-study-led content marketing, and social media presence across LinkedIn, YouTube, Instagram, and TikTok. The company serves 1,000+ construction customers in the UK and Ireland, with named logos spanning housebuilding, civil engineering, groundworks, demolition, M&E, fit-out, fencing, and merchant sub-sectors. No revenue, funding events, or ownership changes beyond the JDM parent relationship are publicly disclosed.

Name

Integrity Software

Legal name

Integrity Software Systems Ltd

Website

https://integrity-software.net

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

Integrity Software Systems Ltd provides modular, cloud-hosted construction accounting and management software (Evolution Mx) to over 1,000 UK and Irish construction businesses, complemented by StreamBIM, esti-mate estimating, and Trader ePOS sub-brands; the firm is a subsidiary of JDM Technology Group.

Ownership category

akta.pro rank

Product category

Construction Accounting Software

NAICS

Software Publishers (5132), Custom Computer Programming Services (541511)

SIC

Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Construction & Engineering ERP (Job Costing, Project Controls) (HDAEAEAE)

akta.pro secondary industry

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF)

Keywords

• Construction accounting software
• Construction management software
• Subcontractor management software
• Construction estimating software
• BIM collaboration platform

Headquarters

HQ city

Lincoln

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Software Subscriptions (Evolution Mx): Evolution Mx is offered in three tiers: Lite (for £1m-£5m turnover businesses) on monthly rental pricing billed quarterly; Standard (for £10m-£100m turnover); and Enterprise (for £100m+ turnover). Subscription includes core modules with optional add-ons. Cloud-hosted version available with fully managed service.
2. Professional Services: Implementation, customization, training, and ongoing support services delivered by Professional Services team of 10 consultants. Ensures smooth customer onboarding and maximizes software adoption.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Integrity Software sells integrated construction accounting and management software (Evolution Mx) to construction businesses in the UK and Ireland, providing job costing, subcontractor management, payroll, CIS/RCT compliance, invoice processing, and CVR in a modular platform available in Lite, Standard, and Enterprise tiers. Alongside Evolution Mx the company distributes StreamBIM (cloud-based 3D BIM collaboration), esti-mate (construction estimating software), and Trader (ePOS for building merchants), with implementation and training delivered by an in-house Professional Services team.

Product overview

Integrity Software provides a suite of construction-specific software solutions. The flagship product is Evolution Mx, a modular construction accounting platform with three tiers (Lite for £1m-£10m turnover, Standard for £10m-£100m, and Enterprise for £100m+) offering job costing, payroll, subcontractor management, invoice processing, and financial reporting. The portfolio also includes StreamBIM (cloud-based 3D BIM collaboration), Trader (retail ePOS for merchants), and esti-mate (construction estimating software). Evolution Mx Enterprise includes Smart OCR for automated invoice capture. The Works Orders module serves M&E contractors. All solutions are available in the UK and Ireland.

Differentiator

Problem solved

Functional benefit

Brands

• Evolution Mx: Fully-integrated construction accounting software platform used by construction businesses to record costs, save time and improve margins. Available in Lite, Standard, and Enterprise tiers.
• StreamBIM
• esti-mate
• Trader

Products and services

• Evolution Mx Fully-integrated, modular construction accounting platform providing job costing, financial management, subcontractor management, payroll, CIS/RCT compliance, invoice processing, document management, and reporting. Available in Lite (£1m–£5m turnover), Standard (£10m–£100m turnover), and Enterprise (£100m+ turnover) tiers with cloud-hosted deployment.
• StreamBIM Cloud-based 3D Building Information Modelling collaboration platform for architects, engineers, owners, and contractors. Enables real-time access to BIM models on smartphones, tablets, PCs, and Macs without sync, with sectioning, measurement, document access, and user-defined groups. Sold on a fixed monthly price with unlimited user access.
• esti-mate Construction estimating software with Estimating Module for professional quotations, schedules, and bills of quantities; Tender Adjudication for profit analysis; Enquiry and Comparisons for subcontractor quote management; Builders Take off for PDF measurement; and Valuations Module for quantity surveying. Available with a 20-day free trial.
• Trader ePOS Electronic point-of-sale system built for merchants in the UK and Ireland, including building, plumbing, timber, hardware, and DIY stores. Provides integrated accounting, quotation, order processing, and stock management, with Making Tax Digital compliance.

Quantifiable outcome

• Up to 70% reduction in manual invoice processing time (Hill case study)
• +4 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability1 record

Feature6 records

Partnerships

Two partnerships are on record, tiered parent company and minor.

• JDM Technology Groupparent companyOthersIntegrity Software is part of the JDM Technology Group, which spans North, Central and South America, UK, Europe, Middle East, Australia and Asia. JDM has a customer base of more than 18,000 construction businesses and employs more than 600 staff worldwide. The group's core business philosophy centers on long-term commitment to customer service and providing the best possible solutions.
• LEAP (Lincolnshire Employment Accommodation Project)minorOthersLEAP is a registered charity and social landlord providing housing and support to vulnerable individuals facing homelessness in Lincoln and Gainsborough. Integrity Software supports LEAP through donations and community engagement, including Easter egg donations. LEAP supports vulnerable individuals through accommodation and tailored support helping them move towards a more secure future.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• COINS (Construction Industry Solutions): UK-based construction ERP/accounting software serving contractors globally with finance, job costing, payroll, and project modules. Directly comparable to Evolution Mx as a purpose-built vertical ERP for construction businesses of similar size.
• Causeway Technologies: UK construction software vendor offering estimating, tendering, and project management tools to UK contractors and supply chains. Comparable as a UK construction vertical specialist with overlapping customer profile.
• Ascora: UK construction SaaS platform providing job management, quoting, scheduling and invoicing for trade and construction businesses. Direct UK vertical peer targeting small-to-mid construction firms.
• Eque2 (Constructionline / Kerridge): UK construction accounting and management software vendor serving contractors with project accounting, estimating, and subcontractor management. Direct peer targeting the same UK construction SMB segment as Integrity.

Emerging players

• PlanRadar: Construction site management SaaS for defect tracking, tasks, and field reporting used by contractors and developers. Emerging player targeting digital workflows adjacent to Integrity's Works Orders/mobile modules.
• SimPRO Software: Specialized job management SaaS for trade and field service contractors with quoting, scheduling, invoicing, and reporting modules. Emerging player focused on SMB trade contractors overlapping with Integrity's lite/standard tiers.

Broad incumbents

• Procore Technologies: Global construction management platform covering project management, financials, and field collaboration for large GCs and owners. Broad incumbent serving overlapping customer workflows (job costing, subcontractor mgmt) at larger scale.
• Viewpoint (Trimble Viewpoint): Construction ERP suite (Spectrum, Vista) from Trimble for mid-to-large contractors including job costing, project management, and financials. Broad incumbent covering overlapping workflows at higher ACVs and broader geographies.
• Sage Group: UK-listed accounting and ERP giant with Sage for Construction and contract-focused modules serving the same UK SMB contractor base as Integrity. Broad incumbent with overlapping capability plus much larger R&D scale.
• Access Group (Access Construction): UK software group with construction-vertical accounting and contract management products serving mid-market contractors. Broad incumbent offering an alternative suite to Evolution Mx within UK/Ireland.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/integritysw
• LinkedInlinkedin.com/company/31058
• Instagraminstagram.com/integritysoftware/?hl=en
• TikToktiktok.com/@integrity.software?_r=1&_t=ZN-94crsRJ0CL0
• Xx.com/integritysw
• Facebookfacebook.com/integritysw

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Integrity Software