Office 21
Office 21 is a London-based IT managed services provider delivering onsite/remote IT support, cloud management, networking, VoIP, GDPR, and AI adoption services to SMEs across London via a 100% in-house team.
- Company typePrivate
- Founded2016
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Office 21 does
Office 21 is a London-based IT managed services provider delivering integrated IT support, cloud management, networking, connectivity, VoIP telephony, GDPR consulting, and AI adoption services to small and medium-sized enterprises (SMEs) across London. Founded in 2016, the company operates with a 100% in-house engineering team headquartered at 33 Stannary Street, SE11, and services clients across more than a dozen London boroughs. Service delivery combines onsite engineer visits (response in as little as 40 minutes), a remote helpdesk with a sub-7-minute Slack response SLA, and dedicated account management for each client.
The underlying technology stack is built on major third-party platforms — Microsoft 365, Azure, Google Workspace, AWS, and Google Cloud — with Office 21 layering continuous monitoring, zero-trust security policies, DDoS filtering, encrypted VPNs, and standardised device management on top. The firm follows an "80/20" model: roughly 80% of client needs are met through a uniform, repeatable IT framework (email, file sharing, device management, security), while the remaining 20% is delivered as bespoke engineering work for client-specific challenges. Notable case studies include an 80% improvement in third-party penetration-test security score at Portner Law and a 100x improvement in file read/write speeds for Hotspex via local UK server deployment. AI capability is delivered through consulting and integration of Microsoft Copilot, Google Gemini, OpenAI/ChatGPT, Claude, and Slack AI, with custom automations built around client data.
Revenue is generated through three pricing structures: fixed monthly managed-service subscriptions (recurring), ad-hoc support billed in 15-minute hourly increments, and project-based quotations for migrations and infrastructure upgrades. VoIP telephony is delivered through a sister company, Phones 21, and dedicated leased-line internet is sourced through a priority partnership with a London ISP. Go-to-market is sales-led, combining content/SEO on the company website, Google Reviews and testimonials, free consultations, and direct phone outreach. The customer base spans legal services (Portner Law, Gpad), market research (Hotspex), advertising (Hartmedia, Ad You Like), technology (Outbrain, Velocity), and venture capital (Target Global). Office 21 is Cyber Essentials certified by the UK's National Cyber Security Centre.
Office 21 firmographics
Firmographics- Name
- Office 21
- Legal name
- Office 21 LTD
- Website
- https://o21.uk
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Office 21 is a London-based IT managed services provider delivering onsite/remote IT support, cloud management, networking, VoIP, GDPR, and AI adoption services to SMEs across London via a 100% in-house team.
- Ownership category
- akta.pro rank
Office 21 industry classification
Industry- Product category
- Managed IT Services
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Office Administrative Services (56111)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Facilities Support Management Services (8744)
- akta.pro primary industry
- Managed Workplace Services (DaaS/Workplace-as-a-Service) (BPAEAIAA)
- akta.pro secondary industries
- Workplace Technology & Smart Office Support (Room Booking Systems, IT/AV Liaison) (IMAIALAK), Email, Calendar & Scheduling (BPAMAMAC)
Keywords
Where Office 21 is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Office 21 business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Supply Chain
Revenue model
- Managed IT Support Services: Monthly support packages providing ongoing IT management, device management, security, onboarding and offboarding. Includes both onsite and remote support options with dedicated account management.
- Ad-hoc IT Support: Fixed hourly rate charged in 15 minute intervals for one-off jobs and issues not covered under monthly packages.
- Project-based Services: Quotation-based pricing for projects such as migrations, cloud transitions, and infrastructure upgrades.
- VoIP Phone Services: Business VoIP phone services through sister company Phones 21. Revenue from monthly per-phone charges (£15+), global numbers (£5+), and conferencing systems (£10+).
- Internet Connectivity Services: Leased fibre lines up to 10Gb/s with fully managed service. Revenue from dedicated internet access provision with guaranteed bandwidth and service levels.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | AdHoc Support - Fixed hourly rate for one-off assistance |
| Subscription | Monthly | Monthly Support Packages - Fixed discounted rates |
| Outcome Based/ Performance | Multi-year contract | Project Quotation - Custom pricing for migrations and projects |
| Subscription | Monthly | VoIP Phones - Starting at £15 per phone per month |
Go-to-market motion3 records
Distribution channels3 records
Marketing channels4 records
Office 21 product offering
Product offeringCore offering
Office 21 is a London-based managed IT services provider delivering proactive IT support, cloud migration and management (Microsoft 365, Google Workspace, Azure, AWS, Google Cloud), VoIP telephony (via sister company Phones 21), network security (Zero Trust, VPN, DDoS), business-grade leased-line internet up to 10Gb/s, GDPR compliance consulting, and AI adoption consultancy (Microsoft Copilot, Google Gemini, OpenAI/ChatGPT, Claude) for small and medium-sized businesses.
Product overview
Office 21 is an IT managed services provider offering a portfolio of integrated services for SMEs in London. The core offering comprises Managed IT Support (proactive day-to-day support, device management, and security), complemented by Business Cloud Management (migrations to and management of Microsoft 365, Google Workspace, AWS, Azure, and Google Cloud), Business VoIP Phone Systems (via sister company Phones 21), Secure Office Networks (Zero Trust, VPN, DDoS protection, WiFi optimization), Office Internet Connection (leased lines up to 10Gb/s), Business GDPR Consulting (compliance, security policies, training), and AI Consultancy (custom AI automations, policy governance, and integration of Microsoft Copilot, Google Gemini, OpenAI/ChatGPT, and Claude). Services are delivered through a standardized-but-bespoke approach with flexible pricing (AdHoc, Monthly, or Quotation) and a 100% in-house London-based team.
Differentiator
Problem solved
Functional benefit
Brands
- Phones 21: Sister company providing VoIP telephony services including business phone lines, conferencing systems, and global numbers. Pricing starts from £15 per phone per month.
Products and services
- Managed IT Support
Quantifiable outcome
- Response times under 7 minutes on Slack for IT support
- +3 more outcomes
Companies that use Office 21
Customer profileNamed customers8 records
Segments5 records
Ideal customer profiles5 records
Office 21 technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration12 records
AI capability6 records
Feature6 records
Office 21 partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- Phones 21corePhones 21 is a sister company of Office 21 that handles VoIP telephony services. Office 21 refers all VoIP enquiries to Phones 21, which provides business phone systems hosted in their global datacenter network. This partnership allows Office 21 to offer comprehensive communication solutions without building in-house telephony expertise.
- UK Dedicated Internet Service ProvidercoreOffice 21 has a priority relationship with a London-based dedicated internet service provider that focuses exclusively on SMEs. This partnership enables them to deliver up to 10Gb/s leased fibre lines with negotiated fast fault fix times and guaranteed service levels.
Scale indicators5 records
Recent moves5 records
Expansion highlights5 records
Office 21 competitors and assessment
Company assessmentDirect peers
- Littlefish: UK managed IT services provider offering outsourced IT support, cloud, and security services to SMEs and mid-market — directly comparable to Office 21 in service portfolio and target customer profile.
- ramsac: Surrey-based UK IT support and managed services firm serving SMEs with outsourced IT, cloud, security, and compliance offerings — closely comparable to Office 21 in size, geography focus, and service mix.
- Mirus IT: UK IT support and managed services provider focused on SMEs with outsourced IT, cloud migrations, and security offerings — direct overlap with Office 21's core managed-IT value proposition.
- Air IT: UK managed IT services provider delivering IT support, cloud, cyber security, and connectivity to SMEs — comparable in service portfolio and customer segment, with broader geographic reach.
- Certus IT: Manchester-headquartered UK managed IT services provider delivering IT support, cloud, security, and compliance to SMEs and mid-market — comparable SME-focused managed services profile.
Broad incumbents
- Trustmarque: UK IT solutions and managed services provider delivering software licensing, cloud, and IT support to mid-market and enterprise — comparable to Office 21 in IT support but with significantly broader capabilities and customer base.
- ANS Group: UK managed services and cloud provider delivering cloud, security, and managed IT to mid-market and enterprise — overlaps with Office 21 in cloud management and security but operates at significantly larger scale.
- Node4: Established UK cloud and managed services provider with data centre, connectivity, and managed cloud offerings — competes broadly with Office 21 in cloud management and connectivity for SMEs and mid-market.
- Babble: Larger UK managed services and unified communications provider with cloud, contact centre, and IT support offerings — overlaps with Office 21 on VoIP and managed IT but operates at much larger scale.
- Daisy Group: Large UK communications and IT managed services group with connectivity, cloud, and unified comms — overlaps with Office 21 on VoIP and connectivity but as part of a much broader portfolio.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Office 21 social profiles
Digital presenceOffice 21 compliance and trust
Trust signalCompliance1 record
Office 21 financial estimates
Financial estimateRevenue estimate
Valuation estimate
Office 21 leadership team
Management profileNumber of profiles
Office 21 funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Office 21 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 Office 21
What does Office 21 do?
Office 21 is a London-based managed IT services provider delivering proactive IT support, cloud migration and management (Microsoft 365, Google Workspace, Azure, AWS, Google Cloud), VoIP telephony (via sister company Phones 21), network security (Zero Trust, VPN, DDoS), business-grade leased-line internet up to 10Gb/s, GDPR compliance consulting, and AI adoption consultancy (Microsoft Copilot, Google Gemini, OpenAI/ChatGPT, Claude) for small and medium-sized businesses.
Is Office 21 a public or private company?
Office 21 is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Office 21 founded?
Office 21 was founded in 2016. It employs 1 to 10 people.
Where is Office 21 based?
Office 21 is headquartered in London, United Kingdom, in the Europe region.
How does Office 21 make money?
Five revenue lines are on record. Managed IT Support Services are the primary driver. The others are ad-hoc IT Support, project-based Services, voIP Phone Services and internet Connectivity Services.
Who are Office 21's main competitors?
Direct peers on record are Littlefish, ramsac, Mirus IT, Air IT and Certus IT. Broad incumbents are Trustmarque, ANS Group, Node4, Babble and Daisy Group.
Does Office 21 have an API?
No public API is recorded for Office 21.
What industry is Office 21 in?
Office 21's product category is Managed IT Services. Its primary akta.pro industry code is BPAEAIAA, Managed Workplace Services (DaaS/Workplace-as-a-Service), with a secondary code of IMAIALAK, Workplace Technology & Smart Office Support (Room Booking Systems, IT/AV Liaison). Its NAICS code is 5182 and its SIC code is 7370.