Best small business antivirus protection for 2026
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Keeping your business data safe should be your top priority. A single unprotected device can put your entire network – and even your entire company – at risk. That’s why integrating reliable antivirus software into your toolkit is essential. Modern antivirus use machine learning to detect and eliminate threats across all your business devices, helping you maintain security without overspending.
Picking the right antivirus for your business can be difficult, especially with so many options available in 2026. To make it easier, together with the Cybernews research team, I reviewed the best antivirus suites offering business plans. I found Norton, Bitdefender, and ESET to be the most effective solutions for small businesses – let’s take a closer look.
Top 5 best business antivirus solutions
- Norton Small Business – best antivirus for small businesses in 2026
- Bitdefender Ultimate Small Business Security – antivirus protection for small-to-medium businesses
- ESET Protect Enterprise – all-size business threat detection and response
- Avast Business Antivirus – scalable antivirus for growing small businesses
- Microsoft Defender for Endpoint – integrated Windows security for cost-conscious businesses
Our team of researchers thoroughly tests antivirus software following a well-established testing process. In unison, our experts combine in-house and independent testing lab findings with first-hand experience to help you make informed decisions about each product. Learn how we test antivirus software.
Best antivirus for businesses in 2026: detailed list
It may be difficult to find the best antivirus software, whether you are a small business or a large enterprise. For businesses looking to protect company data from threats, I have analyzed top antivirus suites to identify the options that best guard sensitive information from cyber risks.
1. Norton Small Business – the best antivirus for businesses overall
| Device coverage: | Up to 20 devices |
| Centralized management console: | Yes |
| Operating systems: | Windows, macOS, iOS, Android |
| Current deal: | Get up to 60% OFF Norton Antivirus |
Norton Small Business stands out as the best antivirus solution for small companies. This provider delivers robust protection against a wide range of threats while ensuring seamless performance that won’t disrupt your daily operations. It's an ideal choice for growing businesses, offering the flexibility to upgrade from an individual plan to a business-focused one as your needs evolve.
Key features
One of the standout features of Norton Small Business is its real-time problem-solving capabilities. The software provides round-the-clock protection for your devices, ensuring constant defense against phishing and malware attacks. With frequent updates that don’t disrupt work hours, it saves time and minimizes lag.
AI-powered Scam Protection, VPN, and Password Manager further enhance security. At the same time, spam blocking and internet protection systems safeguard against human error – no more accepting unknown files or visiting untrustworthy websites. Meanwhile, Norton's SONAR and Safe Web systems provide email security and scan email boxes for malware.
Malware detection and removal
As our Norton review showed, this provider is capable of detecting and blocking different types of malware, too – including adware, ransomware, and trojans. I did a full system scan on my Windows 11, which had a minimal impact on device performance, causing some strain on the CPU but allowing the computer to run smoothly overall. Norton successfully identified 103/150 malicious files out of 668,678 scanned files.
Based on AV-TEST independent testing, Norton achieved a 99.5% success rate in protection against 0-day malware attacks and 100% detection rate for 4-week-old threats.
Scalability and compatibility
The Norton Small Business admin console allows you to manage the security of your company's devices from a single place. The provider offers a user-friendly interface that is easy to work with and understand. There, you can find an overview of your in-house security specs. If you have a new employee, it’s effortless to set up a new device, as you only need to send an email from the hub to the new device. Luckily, the subscription works with PC, Mac, Android, and even iPhones, allowing you to protect up to 20 devices at once.
Norton Small Business is a top-notch antivirus solution suitable for all sizes of enterprises that combines unbreakable protection with great performance. The provider offers two business plans: Small Business (3 to 10 users, 2 devices each) and Small Business Premium (5 to 10 users, 2 devices each). For starters, I recommend the Small Business plan, starting at $59.99/year for 3 users/6 devices.
2. Bitdefender Ultimate Small Business Security – top antivirus with machine learning for small-to-medium businesses
| Device coverage: | Up to 100 devices |
| Centralized management console: | Yes |
| Operating systems: | Windows, macOS, Linux, iOS |
| Current deal: | Get Bitdefender for up to 78% OFF |
Bitdefender is one of the top antivirus solutions for your small-to-medium business. This provider offers an excellent combination of protection against various types of malware, along with intuitive software that has no disturbing impact on the device’s performance.
Key features
Like its main competitor, Norton Small Business, Bitdefender uses machine learning, continuously monitors your devices, and helps you prevent malicious actions on them. In addition to machine learning, Bitdefender relies on cloud-based technology and signature-based malware scanning. The Sandbox Analyzer is one of the most impressive features of the business security package. It allows the IT administrator to thoroughly test the threat in an enclosed environment.
Malware detection and removal
Both in-house and independent AV-TEST lab tests showed incredible Bitdefender Business Security results. I was really impressed with our hands-on results when testing Bitdefender. Its impact on PC performance is light even during scanning. It caught 133/150 malicious file samples among 389,191 scanned files and kept my device totally safe, although the full scan took over an hour and a half to finish.
Moreover, the July-August 2025 tests by AV-TEST awarded this enterprise antivirus the highest scores in protection, performance, and usability. Bitdefender also received the TOP PRODUCT certificate for its 100% success in protection against both 0-day and 4-week-old threats.
Scalability and compatibility
Your company’s IT manager can monitor each employee’s device from a single security panel, ensuring spotless protection for the team with ease. The protection suite is compatible with Windows, macOS, iOS, and Linux platforms, supporting up to 100 devices. If you need to protect more team members, you’ll need to contact Bitdefender’s customer support.
The starting price of a Bitdefender Ultimate Small Business Security subscription is $132.99/year for 3 members and 6 devices. However, you can adjust the number of members, which will affect the total price. You can also choose from monthly to yearly subscriptions, including 30-day money-back guarantees and 1-month trials to test the service individually.
3. ESET Protect Enterprise – secure and quick all-size business antivirus suite
| Device coverage: | Up to 100 devices |
| Centralized management console: | Yes |
| Operating systems: | Windows, macOS, Linux, Android |
| Current deal: | Get ESET, save up to 30% |
ESET is a cloud-based antivirus software for business security. The provider comes with four different subscription plans for small businesses, covering all crucial features in each. With it, your company will easily prevent ransomware, phishing scams, exploits, and other threats.
Key features
ESET antivirus software provides a comprehensive security suite that combines machine learning with human expertise to protect your business. The software adapts to your activity, learning from logged issues and attacks to guard against future threats. Included in all plans, ESET's built-in endpoint security provides ransomware protection, prevents fileless attacks, blocks targeted attacks, and protects against data breaches. The advanced threat defense feature detects anomalies and blocks previously unseen threats.
Additionally, complete disk encryption and file server protection ensure that all data traveling through your company’s servers is secure.
Malware detection and removal
Our in-house ESET review showed that the provider easily detects and blocks malicious attachments, adware, worms, and other threats. It identified 102/150 malware files among 296,008 scanned ones in under 10 minutes – one of the fastest results on my list. Moreover, the impact on the device was low enough to continue working without interruptions.
AV-TEST analysis also proved ESET’s capabilities, resulting in its 100% success in protection against 0-day and 4-week-old threats. However, considering our ESET vs Norton comparison, I found that Norton – my top recommendation – offers more advanced features: webcam protection, dark web monitoring, and a VPN.
Scalability and compatibility
Your company’s IT manager can control ESET through a singular management platform. The software provides all the data of your security system and allows you to manage all endpoint security and user activities. The antivirus covers most of the operating systems’ security.
On the downside, you can’t contact the company’s customer support via live chat. However, there is an AI Advisor chatbot available, and what I liked about it is that it provides sources for its claims without being prompted. It does make mistakes, but as long as you verify the sources and challenge its claims, it can still be helpful. Still, it’s important to note that AI Advisor can take quite a long time to generate responses – I had to wait around 40 seconds before it responded.
All three ESET business plans allow you to cover from 5 to 100 devices, and the cost of the ESET Protect Complete plan, offering the best value, starts from $287.72/year for 5 devices.
4. Avast Business Antivirus – scalable antivirus for growing small businesses
| Device coverage: | Up to 999 devices |
| Centralized management console: | Yes |
| Operating systems: | Windows, macOS, Android, iOS |
| Current deal: | Get up to 60% OFF Avast Antivirus |
Avast Business Antivirus is a reliable, scalable solution for small businesses looking to protect their data across multiple platforms. It provides a comprehensive security suite that defends against malware, phishing, and more, making it an excellent choice for growing companies that need solid, consistent protection.
Key features
The software includes powerful tools such as FileShield, WebShield, and MailShield to scan files, websites, and emails. Advanced features like Behavior Monitoring and Cloud Sandbox work together to catch 0-day threats and suspicious activity.
Ransomware Shield prevents encryption-based threats, and Remote Access Shield blocks RDP exploits – specifically addressing vulnerabilities tied to weak or compromised credentials. Together, these layers ensure robust protection for remote work environments, mitigating data breaches and minimizing operational downtime.
Malware detection and removal
In our in-house testing, Avast Business Antivirus detected 104 out of 150 threats in a full scan, taking around 20 minutes. While this is decent, it’s not flawless, and there were a few missed threats. Independent tests from AV-TEST also show strong results, with Avast blocking 98.9% of 0-day threats and recent malware samples. However, the software’s performance isn’t without flaws – during tests, systems experienced a slight slowdown, particularly when scanning larger files. Overall, it offers solid protection, but it's not without its minor hiccups.
Scalability and compatibility
Avast Business Antivirus offers a cloud-based management platform called the Avast Business Hub, which allows you to manage security across multiple devices from Google Chrome, Firefox, Safari, and Microsoft Edge browsers. This centralized control panel is compatible with Windows, macOS, and Linux systems, making it suitable for diverse business environments.
That said, if your business relies heavily on mobile devices, you might find its management features a bit restrictive compared to other security platforms. Customer support is available via email, phone, and live chat.
Plans start at $31.37 per device per year (up to 4 devices) for the Essential Business Security, with options to scale up depending on your business’s needs. For example, for 5-19 devices, you will pay $29.67 per device per year – and even less when you opt for more devices. This means that buying more devices is actually cost-effective with this provider.
Avast Business Antivirus provides strong protection, with easy management features for businesses seeking reliable security at a competitive price.
5. Microsoft Defender for Endpoint – built-in Windows protection
| Device coverage: | Up to 5 devices per user license |
| Centralized management console: | Yes |
| Operating systems: | Windows, Mac, iOS, and Android |
| Current deal: | Get Microsoft Defender for $99.99 |
Microsoft Defender for Endpoint is a built-in Windows security solution designed for businesses seeking strong protection without extra software costs. It combines Microsoft's enterprise-grade threat intelligence with seamless device integration, making it a practical choice for organizations using Windows-based systems.
Key features
Microsoft Defender for Endpoint provides unified security tools with centralized management, allowing IT teams to monitor and control protection across all business devices from a single dashboard. The solution includes advanced endpoint detection and response (EDR) capabilities, network protection with a built-in firewall, and web content filtering to block malicious sites.
Additional features include application control to prevent unauthorized software, threat intelligence with real-time cyberthreat analytics, and exposure management tools to identify vulnerabilities before they become problems.
Malware detection and removal
Independent lab tests by AV-TEST awarded Microsoft Defender with a TOP PRODUCT certificate, scoring 6/6 in protection and performance – a better result than Surfshark Antivirus. In the in-house testing, it detected 103/150 malware samples from 374,990 files in total in a full scan – on par with Norton and ahead of ESET – while maintaining reasonable CPU load throughout scanning and real-time protection tasks.
Scalability and compatibility
Defender integrates directly into Windows environments and Microsoft 365, streamlining deployment across multiple endpoints. It supports both small teams and enterprise-scale networks, offering APIs and SIEM connectors for extended monitoring and analytics.
Other supported operating systems include macOS, iOS, Linux, and Android. However, its performance and management tools are most effective within Windows ecosystems, with limited cross-platform coverage.
Microsoft Defender for Endpoint is available through Microsoft 365 Business Premium or as standalone P1 and P2 tiers. Pricing starts at around $33.75 per user per month for basic protection, with advanced EDR and threat analytics available in higher plans.
6. Surfshark Antivirus – all-in-one antivirus solution for small businesses
| Device coverage: | Up to 5 devices per single user |
| Centralized management console: | No |
| Operating systems: | Windows, macOS, Android, iOS |
| Current deal: | Get Surfshark Antivirus - 85% OFF + 3 months FREE |
Surfshark Antivirus is a beginner-friendly all-around protection suite. While there are no special plans tailored to businesses, the antivirus is offered in the One plan. The provider is well-known for its market-leading VPN service and overall security-focused approach, including lightweight virus protection. If you're a small business with few employees and looking to start protecting your data and online privacy, this provider might be the one.
Key features
Surfshark offers three types of malware scans: manual, scheduled, and real-time. In addition, Surfshark’s Cloud Protect system will analyze unfamiliar files to block zero-day threats. Another important feature to note is the Surfshark Alert, which helps businesses stay ahead of data breaches by monitoring corporate emails, credit cards, and employee IDs. It minimizes risks, protects brand reputation, ensures compliance, and enables quick action to prevent financial or legal fallout.
Additionally, Surfshark offers the Search tool, providing an ad-free and private browsing experience without trackers.
Malware detection and removal
A less competent performance was revealed during our in-house Surfshark One tests. While Surfshark excelled in some areas, such as completing the system scan quite fast, its anti-phishing protection was rather average compared to Bitdefender. It caught 107/150 malware samples out of 309,850 scanned files, reflecting a weaker performance in this critical area.
However, Surfshark has made significant strides. In the most recent AV-TEST lab evaluations in June 2025, Surfshark maintained a perfect 6/6 score in protection against malware infections. This remarkable improvement helped Surfshark secure the prestigious AV-TEST Top Product award. Surfshark also showed 100% success in protection against 0-day and 4-week-old threats, while maintaining a lightweight impact on system performance, offering protection without slowdowns.
Scalability and compatibility
Surfshark VPN for Teams offers an Admin Panel, allowing for the effortless management of multiple accounts. The Admin Panel lets you monitor available accounts and easily assign access from a single dashboard. Compatibility-wise, there’s no control panel for managers to track security performance across the company’s devices. Nevertheless, the application is one of the most intuitive on the market, making it an excellent choice for new antivirus users. The Surfshark Antivirus app works on Windows, macOS, and Android devices, and it can protect a minimum of 5 users.
Surfshark Antivirus is included in Surfshark One, which starts at $2.49/month or $29.88/year with a 2-year plan. Also included in the bundle is the Surfshark VPN, an Alternative ID, Alerts, and Search, making it a great deal for your business and employees.
How we tested these business antivirus
To find the best antivirus for businesses, we followed a structured testing process over six weeks, conducting extensive in-house evaluations in a controlled testing environment.
Our primary focus was on detection rates for both known and new threats, including different types of malware, such as ransomware, and phishing attempts, using real-world samples to assess the effectiveness of antivirus in real-life scenarios.
We then evaluated ease of use by testing app interfaces, installation processes, and centralized management features for IT administrators. This included assessing how efficiently security policies could be deployed across multiple devices in a business environment.
For security features, we focused on the ability to detect and block threats in real time, scanning options, and additional layers like a firewall and email protection.
To measure value for money, we compared the range of features against pricing and provided recommendations based on the overall effectiveness and cost efficiency of each solution.
| Providers reviewed | 30 |
| Operating systems used | Windows, macOS, Linux, Android, iOS |
| Minimum virus detection rate | 80% |
| Features tested | Management dashboard, endpoint security, real-time protection, scanning options, web protection, spam filters, firewall, email protection |
Different-sized businesses may need specific security features for the antivirus to include. Additionally, the security software must be compatible with work-focused devices. With this in mind, we have reviewed 30 antivirus suites following the criteria below:
- Malware protection and detection (40%). Our top priority was to assess the effectiveness of each antivirus solution in detecting and preventing a wide range of cyberattacks. This included real-time malware and phishing protection, with higher rankings given to providers that offer comprehensive, multi-layered defense.
- Compatibility and scalability (20%). We examined how well each antivirus solution integrates with various operating systems and how easily it scales for growing businesses. Solutions that offer broader compatibility and flexibility in coverage across devices and platforms were rated higher.
- Price (20%). Business antivirus software can be expensive, especially the ones with lots of features. Therefore, we looked for providers that offer a fair price-to-quality ratio.
- User support (20%). For businesses, it’s important to get help in case of an emergency ASAP. Thus, we ensured the antivirus provider offers the possibility to have a dedicated customer support agent or at least general 24/7 customer support available.
To perform our analysis, we used industry-standard test setups, such as virtual machines and dedicated test environments, to measure real-world protection capabilities. Each antivirus was tested across multiple operating systems, including Windows, macOS, and Android, to ensure compatibility.
Antivirus for business comparison 2026
Here is a quick side-by-side comparison of all the providers mentioned on this list.
| Business antivirus | Rating | Number of devices | Money-back guarantee | Operating systems | Best for | Endpoint security | Management console |
| Norton | 20 | 60 days | Windows, macOS, iOS, Android | Small businesses | ✅ Yes | ✅ Yes | |
| Bitdefender | 100 | 30 days | Windows, macOS, Linux, iOS | Small to medium businesses | ✅ Yes | ✅ Yes | |
| ESET | 100 | 30 days | Windows, macOS, Linux, Android | All-size businesses | ✅ Yes | ✅ Yes | |
| Avast | 999 | 30 days | Windows, macOS, Android, iOS | Growing businesses | ✅ Yes | ✅ Yes | |
| Microsoft Defender for Endpoint | 5 | 30 days | Windows, Mac, iOS, and Android | All-size businesses | ✅ Yes | ✅ Yes | |
| Surfshark Antivirus | 5 | 30 days | Windows, macOS, Android | Small businesses | ❌ No | ❌ No |
Why do businesses need antivirus software?
Businesses need antivirus software to effectively protect against various cyberthreats, including malware such as viruses and spyware. Due to limited resources, small businesses, in particular, are at higher risk, making them prime targets for cybercriminals.
Antivirus software adds an essential layer of security, reducing the risk of attacks that could lead to financial losses, data breaches, and operational disruptions. By implementing robust antivirus solutions, businesses can proactively defend against these threats and strengthen their overall security posture.
In 2022, Barracuda Networks studied millions of emails from thousands of companies. They found that, on average, small business employees (at companies with fewer than 100 employees) faced 350% more social engineering attacks compared to employees at larger enterprises.
Investing in top-notch antivirus software is essential to minimize these risks and safeguard your business, along with client data. Let's explore the leading antivirus options tailored for small businesses.
How to choose an antivirus for business
Choosing the best antivirus software option is crucial for business owners. With most of your data being online, security is most important. But just blindly picking the most popular or expensive antivirus software isn’t smart. You need to know what features are a must to keep your business safe.
To invest in the best antivirus software option, it needs to cover these main features:
- Protection against malware. The main purpose of an antivirus is to secure your systems from dangerous malware or phishing attacks. So, any good provider has to offer software with a high-security score and not flag false-positive attacks. To get an idea of each provider's performance, you can always check independent AV-TEST lab results, as they are conducted monthly. Also, antivirus software should be updated often to offer the best quality protection. You can search for any relevant updates on each provider's website.
- Scalability. When selecting antivirus software, it's essential to ensure it can grow with your needs. It should protect your current devices and easily adapt to new ones as your organization expands. You can conduct a search and check which providers can offer antivirus software to cover a variety of devices. Additionally, check the options for switching plans as your needs grow and see what plans they offer.
- Compatibility. Not all antivirus providers offer the same support for different devices. So it’s smart to check before buying the package if the software works with your systems. And, if you’re using different iOS, Windows, macOS, and other gadgets, it’s crucial to check if you get the same amount of support for each.
- Email security. It’s another important feature to have since a lot of business information goes through email. Securing your email inbox helps prevent data leaks and phishing attacks.
- A safe browser or VPN. The best antivirus software offers both of these features, but at least one of them is mandatory. This helps protect your identity and activity online. It also prevents users from visiting malicious websites.
- Price. Businesses have a lot of expenses, so blindly choosing the cheapest or the most expensive antivirus software isn’t a smart choice. You need to pick the provider that is within your budget but still offers the necessary features you need.
Personal vs enterprise antivirus: what’s the difference?
While some might think that enterprises and individual users can rely on the same antivirus software to protect their devices and data, the reality is a little different. Enterprise and personal antivirus softwares are not the same, and here are some of the most significant differences:
- Management. While a consumer antivirus control panel is usually easy to navigate, and the product is ready for use once installed, enterprises most often have more than one device to protect. Moreover, these devices are connected to one network, and each is regarded as an endpoint of that network. Thus, enterprise security requires more sophisticated management. This often involves having a control panel in the cloud that provides an overview of the whole business network.
- Features. Enterprise antivirus often have a lot more advanced security features, which may include internet security for businesses and sophisticated endpoint security. They also often include machine learning and behavioral analytics to catch advanced threats and prevent data breaches.
- Versatility. While consumer antivirus software may be available for the most common operating systems, an enterprise antivirus has to be compatible with a great variety of devices, cloud services, servers, and more.
- Cost. Enterprise antivirus will always be a lot more expensive than personal antivirus software, simply because it is much more complex, more difficult to maintain, and requires more advanced security solutions.
Conclusion
Every business has unique cybersecurity needs. A used car dealership, for instance, will have a much smaller network than a digital design agency. Still, every device connected to your business network should be protected by reliable antivirus software to safeguard your data and systems.
After thorough research and testing, I found that Norton Small Business is the leading choice for small companies. It provides extensive protection for up to 20 devices and includes strong real-time defense against malware and phishing threats. On the other hand, Bitdefender proves to be the best solution for medium and large enterprises. The provider offers adaptive, machine learning – powered cybersecurity tailored to complex business environments.
FAQ
How much does antivirus software cost for a business?
Antivirus software for business can cost anywhere from $59.99/year for 3 users/6 devices and up to a couple of hundred dollars, covering up to a thousand devices.
Is Bitdefender good for a small business?
Yes, Bitdefender is one of the best antivirus solutions for businesses. This provider has the widest range of features to suit small to mid-sized businesses with the best protection against malware.
Can a business use free antivirus?
Yes, you can use a free antivirus for a business, but there are factors to consider. Free antivirus software has fewer features and lower security levels compared to a paid subscription. Moreover, there’s no customer support – a crucial factor for all-size businesses.
Can I use a personal antivirus plan for my small business?
You can use a personal antivirus for a small business. However, it’s not recommended, as dedicated corporate antivirus programs include multiple device protection and a central security dashboard. Additionally, a separate antivirus would vigilantly monitor business data only, resulting in better data protection.
What antivirus do most businesses use?
Most businesses use Norton Small Business and Bitdefender antivirus, as independent tests show their strong reliability. These two providers score high ratings in security, performance, and usability, which makes them all-around market leaders.
