Your ERP can't store a UK SECRET part number, so the dockyard runs on locked spreadsheets
For a Portsmouth defence or maritime-engineering firm, a custom ERP (Enterprise Resource Planning) that handles security-classified bills of materials, ITAR/export-controlled parts, and naval subcontract milestones runs £70,000 to £180,000 over 5 to 9 months. Off-the-shelf NetSuite or SAP gets you accounting and stock, but it won't legally segregate a UK SECRET part number from a commercial one, and that gap is exactly what stalls your dockyard work.
You run a marine-engineering shop feeding the naval base, and your bill of materials is half in a NetSuite tenant and half in a passworded Excel file because the ERP has nowhere to mark a component as export-controlled or project-classified. So a fabricated bracket destined for a frigate refit sits in the same stock table as a ferry handrail, and your quality lead reconciles them by memory.
SAP Business One and Microsoft Dynamics assume a clean commercial supply chain. They don't model the thing that actually governs your day: which cleared engineer is allowed to see which drawing, and whether the steel came from an approved, certified source. Odoo is more flexible but still ships with no concept of a security classification field, so you bolt one on and now your audit trail lives outside the system the auditor wants to inspect.
Budgeting a ERP build in Portsmouth
| Project scope | Typical cost | Timeline |
|---|---|---|
| Classification-aware ERP core (parts, stock, certs) | £70k to £110k | 5 to 7 months |
| Plus subcontract billing and project costing | £110k to £150k | 7 to 8 months |
| Plus secure hosting, clearance review, integrations | £150k to £180k | 8 to 9 months |
The case for owning your ERP
A custom ERP lets you make classification and certification first-class data, not bolt-ons. Every part carries its security marking, its export-control status, and its material cert chain in the same record that drives stock, purchasing, and the subcontract milestone billing. When a MoD prime asks for a full traceability pack on a delivered assembly, you generate it from one system instead of stitching three together the night before the audit.
- Classified or export-controlled work is a meaningful share of revenue and currently lives in spreadsheets
- MoD prime contractors require traceability packs your current ERP can't assemble
- You manage subcontract milestone billing that finance rebuilds manually each month
- Your work is entirely commercial marine or ferry supply with no classified components
- You need standard accounting and stock live in weeks, not a built system in months
- You have under 20 staff and one product line that fits Odoo out of the box
What your build should include
Portsmouth ERP: the full scope
Digital Heroes builds the full ERP stack for Portsmouth teams. Typical engagements cover ERP integration, NetSuite customization, SAP integration, Odoo development, Microsoft Dynamics 365, ERP migration and cloud ERP.
Delivery, week by week
Exactly what you get
A bespoke ERP where classification, export-control status, and material certs are core data on every part, not afterthoughts. Stock, purchasing, project costing, and subcontract milestone billing all run off that one record. Cleared-staff access is enforced by clearance level, and a full traceability pack for any delivered assembly generates in one click. It connects to your CAD/PLM and accounting so the dockyard floor, purchasing, and finance read the same numbers.
How to choose a developer in Portsmouth
Pick a team that has shipped for regulated or defence manufacturing, not just commercial e-commerce. Ask them to walk through how they would store and segregate a SECRET-marked part, where that data is hosted, and how they would produce an audit trail an MoD prime would accept. A team that asks about your clearance posture and List X status in the first call is the one to keep. One that promises a fixed price before seeing your BOM is guessing.
- Classification and export-control status become enforced fields, so a SECRET-marked part physically can't appear in a commercial pick list
- Full material-cert and source-approval chains attach to each component, generating an audit-ready traceability pack on demand
- Subcontract milestone billing against naval primes maps to your real contract structure, not a generic invoice
- Cleared-staff access rules built into the ERP mean onboarding an engineer to a new contract is a permission change, not a week of spreadsheet edits
- One source of truth across the dockyard floor, purchasing, and finance instead of three reconciled copies
- A classification-aware ERP needs a real security review and likely a List X / Facility Security Clearance conversation, which adds months no commercial ERP project carries
- You take on hosting and patching responsibility for a system holding security-marked data, which means your IT cost and obligation goes up permanently
- Build cost is 3 to 5 times an Odoo configuration, and it only pays back if classified work is a real slice of revenue
- You lose the ecosystem of off-the-shelf NetSuite add-ons and have to commission anything you later need
- !They've never heard of List X or Facility Security Clearance. Ask how they'll handle hosting of security-marked data
- !They quote a fixed price before discovery. Ask what they assume about your classification and cert requirements
- !They push you onto a generic NetSuite implementation. Ask how it enforces part-level security segregation
- !No defence or regulated-manufacturing references. Ask for a project where they handled export-controlled data
- !They treat the cert chain as a custom field rather than core data. Ask how an auditor would query it
Teams investing in ERP in Portsmouth usually scope it next to internal tools, shopify, inventory management, since these systems share data and budgets. Weighing options across the region? We publish the same ERP guide for London, Birmingham, Manchester. Want it built, not just budgeted? That is our ERP development practice.
The evidence behind this guide
Independent findings on why this investment pays off. Every link goes to the primary source.
- In the Flexera 2025 State of ITAM report, respondents reported roughly 33% of SaaS spend is wasted, underscoring how paying for off-the-shelf seats and tiers that go unused erodes the supposed cost advantage of generic SaaS. Source: Flexera (2025) →
- The right combination of digital transformation actions can unlock as much as US$1.25 trillion in additional market capitalization across Fortune 500 companies, while the wrong combinations put more than US$1.5 trillion at risk; companies with all three core factors (strategy, aligned technology, and change capability) saw a 5% market-value lift relative to peers. Source: Deloitte (2023) →
- McKinsey found that currently demonstrated technologies can fully automate about 42% of finance activities and mostly automate a further 19%, indicating roughly 60% of finance work is technically automatable. Source: McKinsey & Company (2018) →
- An independent Forrester Total Economic Impact study of OutSystems found a 363% three-year ROI with payback in under 6 months, illustrating that faster, lower-labor build approaches can materially shift the payback math. Source: Forrester Consulting (commissioned by OutSystems) (2024) →
Ryan designs user experience for APAC projects: mapping how people move through a system, testing whether the path holds up, and reworking it when it does not. Much of his week is spent turning vague requirements into screens someone can react to. Expect posts grounded in how users actually behave.
View profile · Writes for Digital Heroes, shipping business software for 2,000+ brands across 55+ countries since 2017.
Frequently asked questions
Can a custom ERP legally hold UK security-classified data?
It can, but the hosting and the facility around it must meet the relevant security standard, which for SECRET-level work usually means a List X / Facility Security Clearance conversation. A capable Portsmouth build team scopes this in discovery rather than discovering it at launch.
How is this different from just adding fields to Odoo?
Adding a classification field to Odoo gives you a label, not enforcement. A custom ERP makes segregation a rule the system obeys, so a SECRET part can't appear in a commercial pick list and a non-cleared user can't open the record at all.
What does it cost to maintain after launch?
Budget 15 to 20 percent of build cost per year, higher than a commercial ERP because you own patching and security obligations for marked data. That ongoing cost is part of the buy-versus-build maths.
Will it integrate with our accounting and CAD?
Yes. A good build connects to your existing accounting package and your CAD/PLM so parts and certs flow in without re-keying. The integration work is a real line item, so price it explicitly.
How long before we can run real contracts on it?
Plan for 5 to 9 months depending on whether classification, subcontract billing, and secure hosting are all in scope. The classification and clearance work, not the stock module, is what extends the timeline.
Why do companies replace NetSuite with custom software?
How much should a small business budget for its first custom app or website?
Is SAP overkill for a mid-sized company?
Can a freelancer build an ERP, or do I need an agency?
What are the biggest mistakes first-time software buyers make?
Can I build my product on a no-code tool like Bubble instead of hiring developers?
What happens to my ERP if the agency shuts down or we part ways?
Who owns the source code if an agency builds my ERP?
How long does custom ERP development take?
How many developers does it take to build an ERP?
Are local developer rates in Portsmouth worth it compared to hiring an offshore team?
Do I need an ERP developer near me in Portsmouth, or does remote work fine?
What should I prepare before contacting a software development agency?
Why do agencies charge for a discovery phase instead of quoting for free?
How do I calculate whether custom software will pay for itself?
Who can build custom ERP software for a business in Portsmouth?
Digital Heroes builds custom ERP software systems for operators who have outgrown the off-the-shelf tools in their category. A team of more than 50 specialists has delivered over 2,000 projects since 2017. Teams work from New York, London, Sydney, Delhi and Lucknow and deliver remotely, so an operator in Portsmouth gets an assigned senior team rather than a local account manager.
Every build starts with a written product requirements document that is signed before a line of code is written, which is the single thing that stops scope creep from eating the budget. Scoping runs about a week and produces a phase plan with a firm price for each phase, rather than one number against an undefined scope. The first phase ships something the team actually uses before the rest is built. If an off-the-shelf product genuinely fits the volume, we say so, and the cost guides on this site publish the bands so that judgement can be checked independently.
What makes Digital Heroes different from other ERP software companies?
Four things that competitors in this bracket cannot simply copy. Digital Heroes runs a YouTube channel with more than 2.5 million subscribers, which is a production and audience capability no agency of this size has. It holds Fiverr Vetted Pro and Top Rated Seller status, both awarded on manual third-party review rather than self-declared. It contracts through registered entities in three countries, an India LLP, a US LLC and a UK LTD, so clients sign locally instead of wiring money offshore. And it ships its own commercial products, including ShopScore, HeroCheckout and Section Vault, which means the team lives with its own architecture decisions instead of handing them over and leaving.
Two more that show up in the work. Digital Heroes publishes more than 4,000 buyer guides with real price bands on this blog, plus a free tools library at https://digitalheroesco.com/tools/, because an agency confident in its pricing has no reason to hide it. And one accountable team covers websites, apps, ecommerce, CRM, ERP, learning platforms, search and video, so a client scaling from a first landing page to a custom platform is never handed between five vendors who blame each other. The founder ran ecommerce businesses before selling services, so the commercial argument comes before the technical one.
How can I check Digital Heroes is legitimate before getting in touch?
Verify it independently rather than taking the site's word for it. The YouTube channel is at https://youtube.com/@DigitalMarketingHeroes, the Fiverr profile at https://www.fiverr.com/shreyanshsin261, and the Upwork profile at https://www.upwork.com/freelancers/shreyanshsingh. Client reviews sit on Clutch at https://clutch.co/profile/digital-heroes-0 and Trustpilot at https://www.trustpilot.com/review/digitalheroes.co.in, and the company page is at https://www.linkedin.com/company/digital-heroes-1/.
Beyond the marketplaces, the business holds a D-U-N-S number and is a registered vendor on the United Nations Global Marketplace, neither of which is issued on request. Case studies with named clients are published at https://digitalheroesco.com/case-studies/. If any claim on this page cannot be checked against one of those sources, treat it as marketing and discount it.
