Publicly listed on BSE · ISO 27001 & SOC 2 Type II certified
FIXED PRICE SOFTWARE DEVELOPMENT
Turn a well-defined requirement into working software with agreed scope, responsibilities, milestones, acceptance criteria, and commercial terms.
Capital Numbers manages engineering execution, quality, project coordination, and reporting within the agreed delivery baseline, giving you clear commercial visibility and defined accountability.
Client-led delivery | Vetted engineering specialists | Flexible scaling
Fixed price software development is an engagement model where the project scope, major deliverables, assumptions, responsibilities, acceptance criteria, and commercial terms are agreed before development begins.
Capital Numbers manages delivery against that agreed baseline. If requirements materially change, the impact on scope, effort, timeline, and commercials is assessed through an agreed change-control process.

Who manages delivery?
Capital Numbers
Is the commercial value agreed upfront?
Yes, against the agreed delivery baseline
Are milestones defined?
Yes
Are acceptance criteria agreed?
Yes
Can requirements change?
Yes, through agreed change control
Best suited for
Projects that can be defined with reasonable confidence
Do You Need Individuals, a Managed Team, or a Defined Project?
Staff Augmentation
Skill or capacity gaps
Agile Pod
Ongoing product or platform development
Fixed Price
Clearly defined projects
Staff Augmentation
Individual specialists
Agile Pod
Dedicated cross-functional team
Fixed Price
Scope-based project delivery
Staff Augmentation
Client
Agile Pod
Capital Numbers
Fixed Price
Capital Numbers
Staff Augmentation
Client
Agile Pod
Client
Fixed Price
Agreed within scope
Staff Augmentation
Roles and skills are known
Agile Pod
Roadmap can evolve
Fixed Price
Scope can be defined with confidence
Staff Augmentation
Resource-based
Agile Pod
Team and capacity-based
Fixed Price
Scope and milestone-based
If important requirements, workflows, integrations, architecture, data, or dependencies remain unresolved, Discovery & Solution Definition may be the right starting point.
Choose Fixed Price when both sides can establish a reliable delivery baseline before implementation.
Business requirements are reasonably stable
Expected functionality can be documented clearly
Deliverables and acceptance criteria can be agreed
Major integrations and dependencies are understood
Your organization needs clear commercial visibility
Procurement requires a defined project commitment
The work has a clear completion point
Material changes can be handled through change control
Fixed Price May Not Be the Right Fit When
If requirements are still being discovered, user feedback is expected to reshape the backlog, or significant technical uncertainty remains, AgilePod or Discovery may provide a better starting point.
Fixed Price can support projects where the requirements and expected outcomes can be defined clearly enough to establish an agreed delivery baseline.
Business applications, operational systems, platforms, and portals.
Web platforms, marketplaces, portals, and integrated applications.
iOS, Android, and cross-platform applications with defined user journeys and integrations.
Defined RAG applications, AI assistants, workflow automation, and AI-enabled product features where data, use cases, and success criteria can be agreed.
Defined migrations, CI/CD initiatives, infrastructure, and platform improvements.
Data pipelines, integrations, migrations, processing workflows, and analytics foundations.
Defined Salesforce, CPQ, CLM, workflow, and integration initiatives.
Defined automation, performance, security, and quality-engineering projects.
Business applications, operational systems, platforms, and portals.
Web platforms, marketplaces, portals, and integrated applications.
Business applications, operational systems, platforms, and portals.
Web platforms, marketplaces, portals, and integrated applications.
iOS, Android, and cross-platform applications with defined user journeys and integrations.
Defined RAG applications, AI assistants, workflow automation, and AI-enabled product features where data, use cases, and success criteria can be agreed.
Defined migrations, CI/CD initiatives, infrastructure, and platform improvements.
Data pipelines, integrations, migrations, processing workflows, and analytics foundations.
Defined Salesforce, CPQ, CLM, workflow, and integration initiatives.
Defined automation, performance, security, and quality-engineering projects.
What outcome should the project support?
What should users and systems be able to do?
Which systems, APIs, infrastructure, data sources, and constraints are involved?
What will each party provide?
Which client-side or third-party inputs affect delivery?
How will completion be assessed?
Which conditions underpin the estimate and timeline?
If important questions remain unresolved, we may recommend Discovery & Solution Definition before committing to Fixed Price.
We review business objectives, functionality, technical environment, integrations, constraints, security requirements, and expected outcomes.
We define the agreed scope, assumptions, responsibilities, technical approach, deliverables, milestones, dependencies, and acceptance criteria.
We estimate the agreed baseline and define the applicable project commercials, milestone structure, and delivery terms.
The team designs, develops, tests, and reviews the solution through structured engineering and stakeholder checkpoints.
Deliverables are validated against the agreed acceptance criteria, followed by the applicable deployment, documentation, knowledge transfer, and handover activities.
Successful fixed-price projects depend on both parties meeting clearly defined responsibilities.
Your Organization
Yes
Capital Numbers
—
Your Organization
Yes
Capital Numbers
—
Your Organization
Yes
Capital Numbers
—
Your Organization
Yes
Capital Numbers
—
Your Organization
—
Capital Numbers
Yes
Your Organization
—
Capital Numbers
Yes
Your Organization
—
Capital Numbers
Yes
Your Organization
—
Capital Numbers
Yes
Your Organization
—
Capital Numbers
Yes
Your Organization
Shared
Capital Numbers
Shared
Your Organization
Shared
Capital Numbers
Shared
Your Organization
Shared
Capital Numbers
Shared
| Responsibility | Your Organization | Capital Numbers |
|---|---|---|
| Yes | — | |
| Yes | — | |
| Yes | — | |
| Yes | — | |
| — | Yes | |
| — | Yes | |
| — | Yes | |
| — | Yes | |
| — | Yes | |
| Shared | Shared | |
| Shared | Shared | |
| Shared | Shared |
Tell us what you need to build, the outcome you are targeting, and the requirements you already have. We will help assess whether the project is ready for Fixed Price delivery and identify anything that should be clarified before scope, timeline, and commercials are committed.
Not ready to fix the scope? Explore Discovery & Solution Definition.
Confidential Discussion | NDA-Ready
What Happens
When Requirements Change?
Fixed Price should provide clarity, not prevent useful change. When a requested change materially affects agreed scope, assumptions, effort, architecture, dependencies, or timeline, we assess the impact before implementation.
Identify
Document the requested requirement or scope adjustment.
Assess
Evaluate its effect on effort, architecture, dependencies, timeline, and commercials.
Agree
Decide whether to incorporate, defer, exchange, or separately scope the change.
Update
Amend the applicable baseline where required.
Continue
Proceed with a shared understanding of the revised commitment.
We work to identify assumptions, dependencies, responsibilities, acceptance criteria, and technical risks before establishing the commercial baseline.
Access software, AI, data, cloud, DevOps, QA, Salesforce, architecture, design, and delivery expertise through one organization.
Experienced technical leadership can support architecture, security, maintainability, quality, and significant technical decisions.
Projects operate with agreed ownership, reporting, review points, risk management, dependencies, and escalation.
Material changes are assessed and agreed rather than silently absorbed or introduced without shared understanding.
Delivery is supported by ISO 9001 and ISO 27001 certified management systems, SOC 2 Type II controls, defined processes, senior oversight, and public-company accountability.
AI-assisted engineering workflows may support selected planning, development, testing, and documentation activities while experienced professionals retain accountability.
Examples of Capital Numbers delivering clearly defined software outcomes across complex technical environments.

Incident reporting
Capital Numbers built a secure incident-reporting platform integrating WordPress, Azure Active Directory, Microsoft Teams, conditional workflows, SSO, and automated follow-up processes. The completed platform supports safety reporting across more than 50 school campuses.

Stock Market
Modernized Stock Market Analysis Platform
Capital Numbers rebuilt an outdated stock-analysis platform, streamlined its data pipeline, improved synchronization, integrated third-party systems, strengthened account security, and enabled real-time market analysis across multiple regions.
Client StoryEverything was organised and streamlined from start to finish.
Ryan Gallace
Managing Director, Green Property Group
They exceeded our expectations and proved to be quick problem-solvers.
Stephen Smith
Project Manager, The Internet of Team LLC
The quality of their approach was high.
Rupert Wallace
Founder, HMOhub
Everything was organised and streamlined from start to finish.
Ryan Gallace
Managing Director, Green Property Group
They exceeded our expectations and proved to be quick problem-solvers.
Stephen Smith
Project Manager, The Internet of Team LLC
The quality of their approach was high.
Rupert Wallace
Founder, HMOhub
Choose engineering capabilities around your existing technology environment rather than a predetermined stack.
Engineering experience across complex product, platform, data, security, and integration environments.
It is an engagement model where the scope, major deliverables, assumptions, responsibilities, acceptance criteria, and commercial terms are agreed before development begins.
Choose it when requirements are reasonably stable, major dependencies are understood, and both sides can agree what will be delivered and how it will be accepted.
Fixed Price is built around an agreed delivery baseline. AgilePod is designed for ongoing products and platforms where priorities and requirements are expected to evolve.
With Staff Augmentation, you add individual specialists to your team and manage their day-to-day work. With Fixed Price, Capital Numbers manages the project team and delivery against the agreed scope.
We establish sufficient clarity around functionality, technical requirements, integrations, assumptions, dependencies, responsibilities, and acceptance criteria, then estimate that agreed baseline.
The agreed commercial value applies to the agreed scope, assumptions, responsibilities, and dependencies. Material changes are assessed through change control.
We assess the impact on scope, effort, architecture, dependencies, timeline, and commercials before the change is implemented.
Not always. If requirements are already sufficiently clear, we can proceed into scoping and estimation. If material uncertainty remains, we may recommend Discovery & Solution Definition first.
Engagement-specific access, security, confidentiality, technical standards, reporting, review points, dependencies, and escalation are addressed as part of project setup and delivery governance.
Yes. Once an initial defined project is complete, ongoing development and an evolving roadmap may be better served through AgilePod.
Payment terms are agreed before the project begins and are typically aligned to the project's commercial structure and delivery milestones. The exact schedule depends on project size, duration, scope, and milestone plan, and is documented in the applicable proposal or agreement.
Publicly Listed
Technology Company
600+
Engineering Professionals
14+ Years
of Enterprise Delivery Experience
SOC 2 Type II, ISO 9001, ISO 27001
Compliant
500+ Client Reviews
Across Global Platforms
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