Custom Development
Powerful MS Office custom add-in integration
Need something more bespoke? Our Custom Word addin developer and Custom PowerPoint addin developer teams build enterprise-ready solutions for Microsoft Office 365 – fast, reliable, and easy to adopt.
Enterprise Office Development Services
Whether you need a Custom MS Office addin developer for a full suite, a Custom Office 365 addin developer for modern deployment, or a specialist VSTO developer / VBA developer to modernize legacy automation, we can help.
Custom PowerPoint Add-in Developer
Build powerful PowerPoint automation solutions with ribbon integration, custom panels, and advanced features tailored to your workflow
Custom Word Add-in Developer
Create Word automation tools for document generation, template management, and content assembly with seamless integration
Custom Office 365 Add-in Developer
Modern Office 365 add-ins that work across desktop, web, and mobile platforms with cloud-based deployment
VSTO Developer Services
Enterprise-grade VSTO add-ins for PowerPoint, Word, Excel, and Outlook with full .NET integration capabilities
Development Capabilities
Comprehensive Office automation solutions for enterprise requirements
VSTO Add-ins
Native Windows add-ins built with Visual Studio Tools for Office, offering maximum performance and deep Office integration.
- Custom ribbon integration
- Task pane panels
- Document-level customization
- Enterprise deployment
MS Office 365 Add-ins
Cross-platform add-ins using modern web technologies that work across Windows, Mac, and web versions of Office.
- Cross-platform support
- Web-based architecture
- AppSource distribution
- Cloud integration
VBA to VSTO Migration
Modernize legacy VBA solutions with professional migration to VSTO or Office 365 add-ins for improved performance and maintainability.
- Code analysis & planning
- Feature parity migration
- Performance optimization
- User training & support
Custom Development Use Cases
Common projects include PowerPoint automation and Pitch automation, plus Factsheet automation, Tear sheet automation, and Investor deck automation – with robust PowerPoint to Excel links and Word to Excel links for live, trusted data.
Brand Asset Integration
Document Generation
Data Linking & Automation
Workflow Automation
Template Management
Compliance Controls
Reporting Solutions
Legacy Migration
Industries We Serve
Custom Office development solutions for regulated and demanding industries
Private Banking
Investment Banking
Asset Management
Advisory & Consulting
Law
Corporate
Insurance
Design & Branding
Discuss Your Custom Development Project
One Simple System to Create Accurate, On-Brand Content Fast
SummAxis Tools
Unique, user-friendly tools for delivering perfect presentations and compliant documents through Microsoft Office. Add custom ribbons to PowerPoint, Word, and Excel with brand assets, templates, and compliance controls built in.
SummAxis PitchPortal
An online brand portal with powerful search and the ability to pull design assets directly into Microsoft Office. Centralise all approved presentations, templates, and brand guidelines in one searchable location.
SummAxis Connector
A pop-up panel in PowerPoint and Word that links directly to your design assets portal. Browse, search, and drag approved logos, images, and graphics without leaving your document.