Search the phrase IT infrastructure services Singapore and you will meet national-scale system integrators, government ICT capability pages, and provider directories quoting project bands of S$100,000 to S$5 million. That is a real market. It is just not the market most Singapore businesses are shopping in.
This guide is written for the other one: an office of roughly 10 to 50 people that needs the same eight layers, at a scale where a single wrong sequencing decision costs a month of disruption rather than a board review.
What is IT infrastructure, in plain terms
IT infrastructure is the combined hardware, connectivity, software and services a business runs on. The textbook definition splits it into hardware, software and network. That split is accurate and almost useless when you are deciding what to spend money on next, because it puts a S$40 monthly mailbox and a S$10,000 cabling job in the same bucket.
A more practical model treats IT infrastructure as eight layers, ordered roughly by how hard each is to change later. Cabling is poured into the ceiling on day one and stays for fifteen years. A mailbox plan can be switched in an afternoon. Sequencing your spend along that axis is the single highest-leverage decision an SME makes about its IT infrastructure.
The eight layers of IT infrastructure services Singapore SMEs actually buy
Each layer below is a distinct service line with its own decisions, its own cost shape, and its own failure mode when it is skipped.
Layer 1 – Structured cabling and the physical network
The only layer that is genuinely expensive to redo. Cable runs, patch panels, switches and access points are installed before furniture arrives and are then invisible for a decade. Getting structured cabling certified and labelled at install time is what turns a future fault from an afternoon of tracing into a five-minute patch-panel lookup. Budget roughly S$6,500 to S$10,000 for around 50 Cat6A points in a typical SME fit-out, and order business broadband at least four weeks ahead – Singapore lead times are the most common cause of a delayed office opening.
Layer 2 – Devices, users and day-to-day IT support
Laptops, desktops, printers, onboarding, offboarding, patching and the person who answers when Outlook breaks. This is the layer businesses feel daily, and the one most often bought reactively. Ongoing IT support in Singapore typically prices between S$100 and S$300 per user per month depending on response time and scope. The trap is treating support as a cost to minimise rather than the layer that keeps the other seven working.
Layer 3 – Business email and identity
Email is no longer just mail. Microsoft 365 and Google Workspace are the identity layer that logins, file permissions and multi-factor authentication hang off, which makes business email a security decision disguised as a productivity one. Both platforms moved to broadly matched pricing on 1 July 2026 at roughly US$7, US$14 and US$22 per user per month, or about S$9, S$19 and S$30. Choose on the ecosystem your team actually works in, not on the headline price.
Layer 4 – Websites and web hosting
The layer most often left with whoever built the site five years ago. Shared plans run about S$3 to S$15 per month, managed WordPress S$15 to S$40, cloud S$8 to S$70 and VPS S$20 to S$150. The number that matters is not the introductory rate but the renewal, where web hosting in Singapore routinely doubles or triples. Ask for the renewal price in writing before you migrate anything.
Layer 5 – Backup and data recovery
The layer whose absence is invisible until the day it is catastrophic. Microsoft 365 operates a shared responsibility model: Microsoft keeps the service running, you remain responsible for your data, and retention is not backup. A workable SME setup pairs onsite and offsite copies – a Synology NAS around S$1,200 to S$1,500 for an 8TB class unit, plus cloud backup at roughly S$10 to S$30 per month. Recovery after the fact costs far more than prevention: on the Singapore market logical recovery runs S$100 to S$500, physical recovery S$400 and up, and RAID rebuilds S$1,000 to S$3,000. Rezolva’s own scope here is backup, disaster recovery and logical recovery; physical clean-room work is coordinated with a specialist lab rather than done in-house.
Layer 6 – Cyber security
Not a product you buy once. The Cyber Security Agency of Singapore’s Cyber Essentials mark organises the work into five domains – assets, secure configuration, software updates, access control, and backups plus incident response – which is a more useful starting frame for an SME than a vendor shortlist. Practical cyber security services for a small office means multi-factor authentication everywhere, patching that actually runs, phishing awareness, and a tested restore. Note that Cyber Essentials is a standard to work toward, not a funding scheme – Rezolva is not a PSG or EDG vendor and makes no grant claims.
Layer 7 – CCTV and door access
The physical half of security, and a PDPA obligation the moment a camera points at a person. Commercial CCTV and door access installation requires purpose limitation, visible signage, controlled footage access and a defined retention window – 21 to 30 days is the common commercial practice. Card-based access runs roughly S$680 to S$2,040 per door; biometric and facial systems run S$2,720 to S$10,880 per door. Rezolva installs for offices, warehouses and multi-site commercial premises, not homes.
Layer 8 – Meeting rooms and video walls
The layer that gets budgeted last and demoed first. Meeting-room AV, interactive whiteboards and video wall installations are what visitors and staff judge the office by. LCD video walls stay materially cheaper below the 110 to 130 inch range; LED costs roughly two to five times more but delivers a genuinely seamless surface and higher brightness. Rezolva supplies and installs; it does not rent.
Enterprise scale versus SME scale
This is where most search results mislead. The providers ranking for IT infrastructure services Singapore buyers see first publish project bands aimed at enterprise and government. Those bands are real, and they are a poor reference point for a 30-person company.
| Buyer | Typical project band | What that buys | Who it fits |
|---|---|---|---|
| Government and large enterprise | S$1 million and up | National-scale ICT programmes, multi-site data centre capability | Agencies, MNC regional HQ |
| Mid-market integrator client | S$100,000 to S$5 million | Hybrid multi-cloud, managed infrastructure, security-integrated design | Established enterprises, regulated firms |
| Focused local integrator client | S$30,000 to S$1 million | Full stack for a larger office or several sites | Larger SMEs, MNC branch offices |
| Singapore SME, 10 to 50 staff | Low five figures to set up, then monthly | Cabling and network, devices and support, email, backup, security, CCTV | Most Singapore businesses |
IT infrastructure management: build, run or outsource
Once the layers exist, someone has to run them. There are three honest models, and the right one depends far more on headcount than on ambition.
- In-house. A hired IT staffer costs roughly S$5,000 to S$8,000 per month before the 1.4 to 1.6 multiplier for CPF, leave and overheads, landing near S$84,000 to S$154,000 a year. It buys presence and context; it does not buy depth across all eight layers, and it has a single point of failure on leave days.
- Outsourced IT infrastructure management. A provider covers all layers for a per-user or per-site fee. Cheaper below roughly 30 to 40 staff and broader in skills, at the cost of some immediacy.
- Co-managed hybrid. One internal person for day-to-day and floor presence, a provider for depth, escalation and projects. The common landing point for growing SMEs.
IT infrastructure as a service is a related but narrower term: it usually means consuming compute, storage and networking from a cloud provider instead of owning hardware. It replaces part of Layer 1 and Layer 5, not the management question above. For context, building on-premise for an SME runs roughly S$30,000 to S$80,000 up front and analyses put it 30 to 71 percent more expensive than cloud across five to ten years.
What IT infrastructure setup costs a Singapore SME
Consolidated view of the bands used above. Treat these as Singapore market ranges for scoping conversations, not quotes.
| Layer | Typical Singapore SME range | Shape |
|---|---|---|
| Structured cabling (about 50 Cat6A points) | S$6,500 to S$10,000 | One-off, at fit-out |
| IT support | S$100 to S$300 per user per month | Recurring |
| Business email and identity | About S$9 to S$30 per user per month | Recurring |
| Web hosting | S$3 to S$150 per month by tier | Recurring, watch renewal |
| Backup (NAS plus cloud) | S$1,200 to S$1,500 one-off, then S$10 to S$30 per month | Mixed |
| Cyber security | Scoped to the Cyber Essentials five domains | Mixed, mostly configuration and discipline |
| CCTV and door access | S$680 to S$2,040 per door (card); S$2,720 to S$10,880 (biometric) | One-off per door |
| Meeting-room AV and video wall | LCD materially cheaper below 110 to 130 inches; LED 2x to 5x | One-off |
The order to build them in
On a constrained budget, sequence beats total. This order reflects what is hardest to reverse and what fails most expensively.
- Connectivity and cabling first. Four-week broadband lead times and a ceiling that gets closed make this the only genuinely time-boxed decision.
- Identity and email second. Everything else authenticates against it, so choosing it late means migrating twice.
- Backup third. The cheapest layer relative to what it protects, and the one people postpone until the week after they needed it.
- Security discipline fourth. Multi-factor authentication and patching cost configuration time rather than capital.
- Support model fifth. Once the stack exists, decide who runs it before it drifts.
- Physical security and AV last. Genuinely important, genuinely deferrable, and easy to add room by room.
Four mistakes that cost the most
- Buying layers in the order they are noticed. The video wall is visible and the backup is not, so the wall gets funded first. Reverse it.
- Treating retention as backup. Microsoft 365 retention policies are not a backup, and the shared responsibility model puts your data on your side of the line.
- Skipping cable labelling to save a few hundred dollars. It converts every future fault into a tracing exercise for the next fifteen years.
- Benchmarking against enterprise reference projects. Pricing anchored to a S$1 million programme tells you nothing useful about a 30-person office.
Where to go next
If you are deciding who should run the stack rather than what it contains, what managed IT services actually cover sets out the commercial model behind the three options above. For the security layer specifically, the Singapore cyber security checklist works through the same five Cyber Essentials domains referenced in Layer 6.
Rezolva has run these eight layers for Singapore businesses since 2012, from single-office fit-outs to multi-site commercial premises. If you want a scoped view of which layers you are missing rather than a quote for all of them, call +65 9189 7351 and ask for an infrastructure review.
Frequently asked questions
What is IT infrastructure?
IT infrastructure is the combined hardware, connectivity, software and services a business runs on. In practice it is easier to work with as eight layers: structured cabling and network, devices and IT support, business email and identity, web hosting, backup and recovery, cyber security, CCTV and door access, and meeting-room AV. Ordering them by how hard each is to change later is more useful than the textbook hardware, software and network split.
What are IT infrastructure services?
IT infrastructure services are the design, installation, management and support of those layers. That spans one-off project work such as cabling a new office or installing door access, and ongoing work such as IT support, backup monitoring, patching and security. Most Singapore providers bundle several layers; few cover all eight, so check which ones a provider subcontracts.
How much do IT infrastructure services cost in Singapore?
It depends on which layers you need and at what scale. Enterprise and government programmes commonly run from S$30,000 to well past S$1 million. A 10 to 50 person SME is usually in the low five figures for setup – roughly S$6,500 to S$10,000 for about 50 Cat6A cabling points, for example – plus recurring costs such as S$100 to S$300 per user per month for IT support. These are Singapore market ranges for scoping, not quotes.
What is IT infrastructure as a service?
IT infrastructure as a service means consuming compute, storage and networking from a cloud provider on a subscription instead of buying and owning the hardware. It substitutes for parts of the server and storage layers, which is why it appeals to SMEs avoiding a S$30,000 to S$80,000 on-premise build. It does not remove the need for cabling, endpoint support, security or physical security.
Do small businesses in Singapore need IT infrastructure services?
Every business already has IT infrastructure; the question is whether it was designed or accumulated. A small business does not need an enterprise programme, but it does need the same eight layers in a sensible order. The layers that hurt most when skipped are backup, identity and security – all comparatively inexpensive – while the layer that is most expensive to fix later is cabling.
What is the difference between IT infrastructure services and managed IT services?
IT infrastructure services describe what is being built and maintained – the layers themselves. Managed IT services describe the commercial model for running them, typically a fixed monthly fee covering proactive monitoring, patching and support rather than per-incident billing. You can buy infrastructure services as one-off projects without a managed contract, and you can have a managed contract covering only some layers.
About the author
Written by the Rezolva engineering team. Rezolva has provided IT infrastructure services to Singapore businesses since 2012 (UEN 201623072C), covering structured cabling, IT support, business email and Microsoft 365, web hosting, cloud backup, cyber security, CCTV and door access, and meeting-room AV. Rezolva is not a PSG or EDG vendor and makes no grant claims. To scope your own stack, call +65 9189 7351.