Data Management Systems for Small Business: 8 Compared

The best data management systems for small business are PostgreSQL, MySQL and Microsoft SQL Server Express for relational databases, Airtable, Claris FileMaker and Microsoft Access for low-code tools, and Amazon RDS and MongoDB Atlas for managed cloud databases. Which one fits depends on who will build and maintain it, not on which has the longest feature list. This guide compares all eight so you can pick one and get your data out of scattered spreadsheets.

What is a data management system for a small business?

A data management system is software that stores your business data in an organised structure, controls who can read or change it, and lets you search and report on it. For a small business, that usually means a database holding customers, orders, stock or jobs, plus some way for staff to work with it.

The term covers two quite different things. A database engine such as PostgreSQL stores and queries data but has no user interface for your staff. A low-code platform such as Airtable or Claris FileMaker wraps a database in forms, views and automations that non-developers can build. Many small businesses need the second kind. Others have a developer or an IT provider and want the first.

How these options were selected

Each product below was checked against its vendor documentation in November 2026. We looked for five things:

The product is current and still sold or supported.
A free option or trial exists, so you can test it with real data.
Hosting is clear: your own machine, a vendor cloud, or both.
Limits that matter to a small team are documented.
Support and documentation exist beyond community forums.

We have not listed prices unless the vendor page showed them. Where a price appears, it is marked as of November 2026. Vendors change plans often, so confirm on the vendor page before you buy.

Comparison table

System	Type	Hosting	Free option	Best for
PostgreSQL	Relational database	Self-hosted or any provider	Free and open source	Custom apps with room to grow
MySQL	Relational database	Self-hosted or any provider	Free Community Edition (GPL)	Websites and web apps
Microsoft SQL Server Express	Relational database	Your own Windows or Linux server	Free, 50 GB database limit	Businesses already on Microsoft tools
Microsoft Access	Desktop database tool	Local files, Windows	No free edition	Small internal tools on Windows PCs
Airtable	No-code database	Vendor cloud	Free plan, 1,000 records per base	Teams that want to build without code
Claris FileMaker	Low-code platform	FileMaker Cloud or your own server	45-day free trial	Custom business apps on Mac, Windows and iPad
Amazon RDS	Managed relational database	AWS cloud	Free plan for new accounts, up to 6 months	Teams with a developer who want managed backups
MongoDB Atlas	Managed document database	AWS, Azure or Google Cloud	Free cluster, 0.5 GB	Apps with flexible, changing data shapes

Relational databases

Relational databases store data in tables and are queried with SQL. They are the foundation under most business software. All three below are free to start with, but none comes with an interface for staff. You need a developer, an IT provider, or software that already runs on top of the database.

PostgreSQL

PostgreSQL is a free, open source relational database released under the PostgreSQL License, a permissive licence similar to MIT and BSD. There is no paid edition from the project itself, so there is nothing to upgrade to and no licence audit.

Hosting: run it on your own server or use a managed PostgreSQL service from a cloud provider.
Free option: the software is free for any use, including commercial.
Best for: custom software, reporting and any project you expect to outgrow a simple tool.
Drawback: you must set up backups, updates and security yourself or pay someone to do it.

MySQL

MySQL is a relational database developed and supported by Oracle. It can be downloaded and used without paying under the GNU General Public License. Oracle also sells commercial licences for organisations that cannot use the GPL, for example when embedding MySQL in a product they distribute.

Hosting: self-hosted or offered by most web hosts and cloud providers.
Free option: the Community Edition under the GPL.
Best for: websites, online shops and web apps, since many hosting plans include it.
Drawback: like PostgreSQL, it has no staff-facing interface, and the GPL terms matter if you resell software built on it.

Microsoft SQL Server Express

SQL Server Express is Microsoft’s entry-level, free edition of SQL Server. In the SQL Server 2025 release, the maximum relational database size is 50 GB, the engine uses the lesser of one socket or four cores, and the buffer pool is capped at 1,410 MB per instance. Earlier versions had a lower database size cap, so check the version you install.

Hosting: you install and run it on your own server or workstation.
Free option: Express is free. Standard and Enterprise editions are paid.
Best for: businesses that already use Microsoft software and have accounting or line-of-business tools built for SQL Server.
Drawback: Express leaves out features you may expect, including backup compression, transparent data encryption and SQL Server Agent for scheduled jobs.

Low-code and no-code tools

These tools put a database behind forms and views that people without programming skills can build. They suit teams of one to fifty who want to be productive within days.

Airtable

Airtable is a cloud database with a spreadsheet-style interface, forms, views and automations. It is the easiest of the eight to start with, and many teams use it to replace shared spreadsheets.

Hosting: Airtable’s cloud only.
Free option: the Free plan allows 1,000 records per base, 1 GB of attachments per base and five editors. Paid plans start with Team, which allows 50,000 records per base. As of November 2026, the pricing page lists Team at $20 per user per month and Business at $45 per user per month, both billed annually.
Best for: project tracking, content calendars, simple CRMs and inventory lists.
Drawback: record limits per base and per-seat pricing make it expensive for large datasets or many users.

Claris FileMaker

FileMaker is now sold by Claris, an Apple subsidiary, under the name Claris FileMaker, and the vendor site lists FileMaker 2026 as the current version. It is a platform for building custom business apps with a database, layouts and scripting, and it has been used by small businesses for decades.

Hosting: FileMaker Cloud, or FileMaker Server on your own infrastructure.
Free option: a free 45-day trial with no credit card.
Best for: custom apps that run natively on Mac, Windows, iPhone and iPad, and in a web browser through WebDirect.
Drawback: building anything serious means learning FileMaker’s scripting, and you pay for licences once the trial ends.

Microsoft Access

Microsoft Access is still sold. Check Microsoft’s lifecycle page for the support dates of the version you buy. Access 2024 is available as a non-subscription standalone product and as Access LTSC 2024 in Office 2024 Professional Plus, and it is included in Microsoft 365 Business Standard, Business Premium and Enterprise plans. Microsoft’s lifecycle page lists Access 2024 support until October 2029. Access 2016 and 2019 reached end of support in October 2025.

Hosting: local files on Windows PCs or a shared network drive.
Free option: none. It requires a purchase or a qualifying Microsoft 365 plan.
Best for: small internal tools used by a handful of staff on Windows.
Drawback: a database file is capped at 2 GB, and it is a desktop tool without a native web or Mac version. Larger setups often keep the data in SQL Server and use Access only as the front end.

Managed cloud databases

A managed database runs on a cloud provider’s servers, and the provider handles patching, backups and failover. You still need someone to design the data and connect an application to it.

Amazon RDS

Amazon RDS is a fully managed relational database service. It supports several engines, including PostgreSQL, MySQL, MariaDB, SQL Server, Oracle and Db2, plus Aurora. AWS handles backups, patching and monitoring, and Multi-AZ deployments copy data to standby instances in other availability zones with automatic failover.

Hosting: AWS cloud.
Free option: as of November 2026, new AWS customers get a free plan for up to six months, with sign-up credits and extra credits for completing activities. Accounts opened before 15 July 2025 may be on the older twelve-month free tier. Charges apply once the free period or credits end.
Best for: a business with a developer that wants PostgreSQL or MySQL without running servers.
Drawback: pricing is usage-based and AWS billing is easy to misread, so set a budget alert on day one.

MongoDB Atlas

MongoDB Atlas is MongoDB’s managed cloud service for its document database, which stores data as flexible JSON-like documents instead of fixed tables. It runs on AWS, Azure and Google Cloud.

Hosting: vendor-managed on AWS, Azure or Google Cloud.
Free option: a free (M0) cluster with 0.5 GB of storage, 500 connections and 100 operations per second. Atlas pauses a free cluster after 30 days with no connections.
Best for: apps where each record can look different, such as product catalogues or event logs.
Drawback: for typical business data with clear relationships, such as customers and orders, a relational database is usually simpler.

Database, data warehouse or data management platform?

Most small businesses only need a database and a simple management tool to manage data day to day. A data warehouse or data lake becomes useful when you pull reports from several data sources, such as a shop, a CRM and an accounting app, and want one place to analyse them. A full data management platform adds data integration, data quality checks and access control on top, and usually needs a data engineer to run it. Match the management software to your business needs: start small, and move to a warehouse only when combining data by hand takes more time than it saves.

As you grow, the same structured data starts to serve more business processes. Customer data from a CRM, sales records and stock levels end up spread across multiple data tools, and a database management system lets you bring that data across into one place. From there, business intelligence and data analytics tools can handle data processing and data visualization, some with real-time data. Larger companies add data governance and master data management to decide who gets data access to which types of data; for a small team, clear ownership and a written list of where CRM data lives is usually enough. Dedicated data management software only pays off once those processes become hard to track by hand.

How to choose

Start with who will use the system and who will maintain it. Then match that to one of these paths.

Nobody technical, and you need something this week: Airtable for a cloud tool, or Claris FileMaker if you want native apps and can invest time learning it.
A few Windows PCs and a simple internal tool: Microsoft Access, as long as the data stays under its 2 GB file limit.
You use Microsoft software and a developer or IT provider supports you: SQL Server Express, moving to Standard if you hit the 50 GB or memory limits.
You are building a custom app or website: PostgreSQL by default, MySQL if your host or software expects it.
You have a developer but no one to run servers: Amazon RDS for PostgreSQL or MySQL.
Your data has no fixed shape: MongoDB Atlas.

Four checks apply whichever you choose:

Size: estimate your record count and file storage for the next three years and compare with each free tier’s limit.
Exit: confirm you can export everything in a standard format such as CSV or SQL before you commit.
Integration: list the tools that must connect, such as accounting, email or your website, and confirm each has a connector.
People: count the staff who need access and check how the plan charges for them.

If your data volume is likely to grow quickly, read how to approach scaling data storage before you settle on a plan. Start with the free tier or trial, load a real sample of your own data, and have two staff members use it for a week before you commit.

Backups and security

Choosing a database is half the job. The other half is making sure you can recover it and that only the right people can open it. A free tier does not usually include a backup you can rely on, and a self-hosted database has no backup at all until you set one up.

Back up on a schedule and test the restore. A backup you have never restored is a guess.
Keep one copy offsite. Our guide to offsite data backup solutions compares the options.
Give each person their own login and only the access their job needs.
Turn on encryption in transit and, where your edition supports it, at rest. SQL Server Express, for example, does not include transparent data encryption.
Apply updates. Self-hosted databases need patching, and managed services handle much of this for you.
Check your legal duties. If you hold personal data about people in the EU, UK or other regulated regions, privacy law may apply. Our data security compliance guide for small businesses covers the basics.

Frequently asked questions

What is the best free data management system for a small business?

PostgreSQL is the best free option if you have technical help, because it has no size limit and no paid tier. If you do not, the Airtable Free plan is the easiest place to start, with limits of 1,000 records per base and five editors.

Is Microsoft Access still available?

Yes. Access 2024 is sold as a standalone product and is included in several Microsoft 365 business plans. Microsoft’s lifecycle page lists support for Access 2024 until October 2029. Access 2016 and 2019 are no longer supported.

Do I need a database or can I keep using spreadsheets?

Spreadsheets work for a single list that one person edits. Move to a database when several people edit the same data, when you repeat the same information across sheets, or when you need to link records such as customers and orders.

Can I move to a different system later?

Usually yes, if you can export your data. Relational databases share SQL, so moving between PostgreSQL, MySQL and SQL Server is mostly an engineering task. Moving out of a low-code tool means exporting tables to CSV and rebuilding forms and automations by hand.

Is a cloud database safe for business data?

It can be, provided you use strong logins, restrict access and keep your own backup copy. Managed services handle patching and infrastructure, but you stay responsible for who has access and what data you put in.