Essential IT Setup for Businesses Under 20 Employees (2026)

You don’t need a complicated network or a server room to run a modern small business. This is the essential IT setup for a team under 20 people — built around reliable, low-maintenance cloud tools.

1. Devices

Standardise where you can: a consistent choice of laptops makes support and replacement simpler. Buy business-grade machines, keep them updated, and enable disk encryption (BitLocker on Windows, FileVault on Mac).

2. Email and Identity

Use a business productivity suite for email and accounts rather than free personal email. It gives you a professional domain, central control, and security policies. Compare the two main options in Microsoft 365 vs Google Workspace for Small Business.

3. File Storage and Sharing

Store files in the cloud (OneDrive/SharePoint or Google Drive) instead of a local server or scattered USB drives. You get access from anywhere, version history, and controlled sharing.

4. Backup

Cloud storage is not the same as backup. Add an automatic backup for your important data and accounts so you can recover from accidental deletion, ransomware, or a lost device.

5. Security Baseline

• Multi-factor authentication (MFA) on every account.
• A password manager for the whole team.
• Built-in or reputable endpoint protection on all devices.
• Spam and phishing filtering — see How to Protect Your Business from Phishing.

6. Networking and Wi-Fi

A solid business router and a separate guest Wi-Fi network are usually enough. Keep firmware updated and change default admin passwords.

7. Communication and Collaboration

Pick one place for chat and meetings (Microsoft Teams or Google Meet/Chat) so conversations don’t scatter across apps.

Quick Setup Checklist

• Business-grade, encrypted, auto-updating devices
• Productivity suite for email + identity
• Cloud file storage with controlled sharing
• Automatic backup
• MFA + password manager everywhere
• Endpoint protection + phishing filtering
• Secure Wi-Fi with a guest network
• One communication platform

For the complete version, see the Complete Small Business Technology Checklist.

Frequently Asked Questions

Do I need a server for a small business?

Usually no. Cloud file storage and a productivity suite replace the traditional office server for most teams under 20 people.

What’s the single most important security step?

Turning on multi-factor authentication everywhere. It blocks the large majority of account-takeover attempts.

Is free email okay for business?

A business productivity suite is strongly preferred — it gives you a professional domain, central admin control, and security features that free personal email lacks.

How much should a small business spend on IT?

Costs are mostly per-user subscriptions plus devices. Budget for a productivity suite, backup, and a password manager per person, and verify current plan pricing before committing.