What Is B2B SaaS? A Plain Explanation with Examples

B2B SaaS is business software that companies use over the internet and pay for by subscription. B2B means “business to business”: the customer is another company, not an individual shopper. SaaS means “software as a service”: the vendor runs the software and the customer logs in, instead of installing and maintaining it themselves.

This guide explains what B2B SaaS is, how it works, how it differs from consumer software, the main types and examples, how it is priced and how to choose it. It is written in plain language for buyers, founders and marketers who are new to the term.

What B2B SaaS means

The term has three parts, and each one matters.

Software

A program that does a job, such as sending invoices, tracking customers or scheduling projects.

As a service

The vendor hosts the software on its own systems and the customer uses it through a web browser or an app. The customer does not buy a copy to install on their own computers. They pay to use it, usually every month or every year, and the vendor keeps it running and up to date.

Business to business

The customer is an organisation. A company chooses the product, pays for it and gives its staff access. That affects how the product is built and sold: it needs accounts for teams, permissions, security controls, reports and integrations with other business tools.

How B2B SaaS works

Most B2B SaaS products follow a similar pattern.

1. The company signs up. Someone starts a free trial or books a demo, then the company agrees a plan.
2. Accounts are created. The company adds its staff, often with different roles such as admin and user.
3. People use the product online. They log in through a browser or an app, and their data is stored in the vendor’s cloud systems.
4. The vendor runs everything behind the scenes. That includes hosting, backups, security patches and new features.
5. The company pays on a schedule. Payment is monthly or yearly, and often grows as more people or more usage are added.
6. The relationship continues. The customer renews, upgrades, downgrades or leaves, and the vendor works to keep them.

Why the subscription matters

Because customers pay again every period, the vendor has to keep earning the renewal. That is why B2B SaaS companies spend so much effort on onboarding, support and product improvements, and why customer retention is a central measure of the business.

B2B SaaS vs B2C SaaS

Some products sit between the two. A tool that a freelancer buys alone and a large company buys for thousands of staff may be sold both ways. The labels describe who the main buyer is, not a strict rule.

B2B SaaS examples

These are well known products that businesses use over the internet. Each is described in one line, to show the range, and the list is not a ranking or a recommendation.

• Salesforce. Customer relationship management software for sales, service and marketing teams.
• Slack. Team messaging and collaboration.
• HubSpot. Software for marketing, sales and customer service.
• Zoom. Video meetings and communication.
• Jira. Issue and project tracking, widely used by software teams.
• QuickBooks Online. Accounting software for small and mid sized businesses.
• Workday. Human resources and finance software for larger organisations.
• Shopify. A platform businesses use to build and run online stores.

Many of these also have free or low cost plans for individuals, which is one reason the B2B and B2C labels blur.

Types of B2B SaaS

There are several ways to group B2B SaaS. Two are especially useful.

Horizontal and vertical

• Horizontal SaaS serves many industries with a common need, such as accounting, email or project management.
• Vertical SaaS serves one industry deeply, such as software for dental practices, construction firms or law firms.

By function

How B2B SaaS is priced

Pricing models differ, and the model often shapes how the company grows and how a buyer budgets.

• Per seat. A fee for each user. Simple to understand, and it grows with the team.
• Tiered plans. Fixed packages, such as basic, pro and enterprise, with more features at each level.
• Usage based. Pay for what you use, such as messages sent, records stored or calls made.
• Flat fee. One price for the whole company, regardless of the number of users.
• Freemium. A free plan with limits, and paid plans for more features or capacity.
• Custom quotes. For larger organisations, the price is agreed after a conversation about needs.

What to watch as a buyer

Check what happens when you add users or exceed a limit, whether discounts depend on paying yearly, and what it costs to leave. A low starting price can rise quickly with growth.

The numbers SaaS companies watch

You will see a few terms often when you read about B2B SaaS businesses. Here are the common ones in plain words.

• MRR and ARR. Monthly and annual recurring revenue: the predictable subscription income.
• Churn. The share of customers or revenue lost over a period.
• Net revenue retention. Whether existing customers pay more or less over time, after upgrades and cancellations.
• CAC. Customer acquisition cost: what it costs to win a customer.
• LTV. Lifetime value: what a customer is likely to pay over the relationship.
• Activation. The share of new sign ups who reach a first useful result in the product.

Buyers do not need these numbers, but they explain why vendors care so much about onboarding and renewals.

Benefits and drawbacks for the buyer

Benefits

• Quick to start. No servers to buy or software to install.
• Updates included. New features and fixes arrive without a project.
• Predictable cost. A subscription is easier to plan than a large upfront licence.
• Access from anywhere. Staff can use it from different places and devices.
• Easier to scale. Add or remove users as the team changes.

Drawbacks

• Ongoing cost. You pay every period, and the total can exceed an old style licence over time.
• Less control. The vendor decides when features change or are removed.
• Dependence on the vendor. If the service goes down or the company closes, you are affected.
• Data in someone else’s systems. You need to trust the vendor’s security and check where data is stored.
• Switching can be hard. Moving data and retraining staff takes effort.

Security and compliance basics

When a vendor hosts your data, its security becomes part of your risk. You do not need to be an expert to ask good questions.

• Where is data stored? Ask which country or region, and whether you can choose.
• Who can see it? Ask how the vendor controls staff access to customer data.
• How is it protected? Ask about encryption, backups and how incidents are handled.
• What evidence exists? Common independent reports and standards include SOC 2 and ISO 27001. Ask for the report or certificate and check what it covers and when it was issued.
• What about privacy law? If you handle personal data, ask how the vendor supports rules such as GDPR in Europe or similar laws elsewhere.
• Can you leave with your data? Check that you can export it in a usable format.

A logo on a web page is not proof. For anything involving sensitive data, involve your IT and legal people before you sign.

Common B2B SaaS terms

These words come up in demos and contracts. Here is what they mean.

• Onboarding. The process of getting a new customer set up and using the product.
• Integration. A connection between the product and another tool, such as your accounting or email software.
• API. A way for other software to talk to the product, so data can move automatically.
• SSO. Single sign on: staff use their company login instead of a separate password.
• Multi-tenant. Many customers share the same underlying system, kept separate by the vendor.
• SLA. A service level agreement: the vendor’s promise about uptime and support response.
• Sandbox. A test area where you can try the product without touching real data.
• Seat. One user licence.

How to choose a B2B SaaS product

1. Define the job. Write down the problem, who will use the product and what a good result looks like.
2. List must haves. Separate the features you need from the ones that are nice to have.
3. Check integrations. Make sure it connects to the tools you already use.
4. Ask about security and data. Where data is stored, how it is protected, how access is controlled and whether you can export it.
5. Try before you commit. Use a trial with real tasks and real colleagues.
6. Read the contract. Look at term length, renewal terms, price changes, limits and how to cancel.
7. Check support and reliability. Ask about response times, onboarding help and service status history.
8. Talk to existing customers. Ask how long it took to get value and what they would change.

Ask vendors for evidence of any security certifications they claim, rather than relying on a logo on a web page. If a purchase is large or involves sensitive data, involve your IT and legal teams.

Common mistakes when buying B2B SaaS

• Buying on features alone. A long feature list does not help if your team will not use the product.
• Skipping the trial. You learn more from a week of real use than from a demo.
• Ignoring the exit. Check how to cancel and how to get your data out before you need to.
• Forgetting the full cost. Add setup, training, extra users and integrations to the subscription price.
• Letting each team buy its own. Overlapping tools waste money and scatter data.
• Not naming an owner. Someone inside the company needs to own the product after the sale.

How B2B SaaS companies sell

If you work at a software company, the questions are different. Most B2B SaaS companies use one of three approaches.

• Sales led. Prospects talk to a salesperson, see a demo and sign a contract. Common for higher priced products.
• Product led. People try the product themselves, often on a free plan, and upgrade when they see value.
• Hybrid. Self service for small accounts and a sales team for larger ones.

Marketing for B2B SaaS has to explain a product that is hard to see, to buyers who compare carefully, and search is one of the main routes, as our guide to SaaS SEO explains. Our SaaS marketing guide covers the channels, our post on SaaS content marketing shows how to plan content around buyer questions, and our B2B digital marketing guide covers longer sales cycles. If you are weighing outside help, see how to choose a SaaS marketing agency.

B2B SaaS FAQ