Big Blue Door
Big Blue Door is a London-based digital agency that designs, builds, and services open-source websites for UK public sector clients, including government agencies, local authorities, and NHS trusts.
- Company typePrivate
- Founded2012
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Big Blue Door does
Big Blue Door is a London-based digital services firm that designs, builds, and services websites using open-source technology. The company targets the UK public sector as its primary vertical, serving government agencies, local authorities, and NHS trusts with digital and digital-transformation engagements. Its stated differentiator is sector-specific familiarity with public-sector requirements and compliance, rather than proprietary technology.
The firm operates at a small scale, with 1-10 employees, and has been in business since 2012. The source data does not disclose a proprietary platform, named product suite, or technical architecture; "open source websites" is the only technical signal. No product launches, patents, certifications, integrations, or AI/ML capabilities are documented. Revenue model, pricing, customer logos, and contract structures are also not publicly disclosed.
The business model is consistent with a boutique consultancy or agency: project- or retainer-based engagements delivering bespoke digital builds and ongoing servicing for public-sector clients. The combination of niche vertical focus, small headcount, and absence of disclosed scale indicators (funding, headcount growth, named anchor customers) implies a tightly scoped operation rather than a scaling technology vendor.
Big Blue Door firmographics
Firmographics- Name
- Big Blue Door
- Website
- https://bigbluedoor.net
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Big Blue Door is a London-based digital agency that designs, builds, and services open-source websites for UK public sector clients, including government agencies, local authorities, and NHS trusts.
- Ownership category
- akta.pro rank
Big Blue Door industry classification
Industry- Product category
- Public Sector Digital Services
- NAICS
- Web Search Portals and All Other Information Services (519290)
- akta.pro primary industry
- Government Digital Service & eGovernment (Service Delivery, IDs, Portals) (BPAIAAAE)
- akta.pro secondary industry
- General Web Portals & Start Pages (BPAMAAAA)
Keywords
Where Big Blue Door is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Markets served
Big Blue Door business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D
Big Blue Door product offering
Product offeringCore offering
Big Blue Door is a London-based web and digital development agency that designs, builds, and services high-quality open source websites. It focuses on digital transformation and digital services delivery for UK public sector organizations, including government agencies, local authorities, and NHS trusts.
Differentiator
Problem solved
Functional benefit
Companies that use Big Blue Door
Customer profileSegments1 record
Ideal customer profiles1 record
Big Blue Door technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Big Blue Door partnerships and signals
Strategic signalRecent moves1 record
Expansion highlights1 record
Big Blue Door competitors and assessment
Company assessmentDirect peers
- Scott Logic: UK-based bespoke software consultancy with a public-sector practice and open-source credentials, delivering digital services to government departments — comparable size band and open-source, public-sector focus.
- TPXimpact: UK-listed digital transformation specialist focused on public sector (central government, NHS, local authorities), offering open-source-friendly delivery and user-centred design — the closest scaled analogue to Big Blue Door's positioning.
- Kainos: UK digital services group with a substantial public sector practice (Home Office, NHS Digital, courts and tribunals), combining custom software, digital, and platform engineering — comparable customer base and delivery model at larger scale.
- AND Digital: UK-based digital transformation consultancy building bespoke digital products across public and private sectors — overlaps in delivery model and digital product engineering, though broader than Big Blue Door's vertical.
- Methods (now part of TPXimpact): Long-standing UK public sector digital and data specialist (now part of TPXimpact) known for HMRC and Home Office delivery — directly comparable vertical, open-source orientation, and G-Cloud presence.
- dxw: Specialist UK public sector digital agency building services on open-source technologies (Drupal, Ruby) for government and NHS clients — a near-direct competitor on both vertical and stack.
- Netcompany: European IT services firm with a strong UK public sector presence (DWP, HMRC, Home Office legacy programmes), delivering digital platforms and citizen-facing services — directly comparable vertical and product mix.
Broad incumbents
- Thoughtworks: Global digital transformation consultancy with deep open-source engineering roots and a UK public-sector-adjacent client base — comparable on technology ethos but operates at much greater scale and breadth.
- Capgemini Invent / Capgemini UK: Global systems integrator with a sizeable UK government practice delivering digital services for central departments — competes for the same public-sector RFPs as a broad incumbent rather than a niche specialist.
- Deloitte Digital (UK): Big Four digital and consulting arm with a UK government and public services practice covering strategy, design, and implementation — overlaps on government digital transformation work as a large, non-specialist incumbent.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks6 records
Key highlights5 records
Customer concentration
Big Blue Door social profiles
Digital presenceBig Blue Door financial estimates
Financial estimateRevenue estimate
Valuation estimate
Big Blue Door leadership team
Management profileNumber of profiles
Big Blue Door funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Big Blue Door M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Big Blue Door
What does Big Blue Door do?
Big Blue Door is a London-based web and digital development agency that designs, builds, and services high-quality open source websites. It focuses on digital transformation and digital services delivery for UK public sector organizations, including government agencies, local authorities, and NHS trusts.
When was Big Blue Door founded?
Big Blue Door was founded in 2012. It employs 1 to 10 people.
Where is Big Blue Door based?
Big Blue Door is headquartered in London, United Kingdom, in the Europe region.
Who are Big Blue Door's main competitors?
Direct peers on record are Scott Logic, TPXimpact, Kainos, AND Digital, Methods (now part of TPXimpact), dxw and Netcompany. Broad incumbents are Thoughtworks, Capgemini Invent / Capgemini UK and Deloitte Digital (UK).
Does Big Blue Door have an API?
No public API is recorded for Big Blue Door.
What industry is Big Blue Door in?
Big Blue Door's product category is Public Sector Digital Services. Its primary akta.pro industry code is BPAIAAAE, Government Digital Service & eGovernment (Service Delivery, IDs, Portals), with a secondary code of BPAMAAAA, General Web Portals & Start Pages. Its NAICS code is 519290.