What Is Backup as a Service (BaaS)? A Complete Guide

Backup as a service is a cloud-delivered model in which a third-party service provider manages the backup and recovery of your data. Instead of purchasing backup servers, storage, and software and maintaining the associated infrastructure, organizations subscribe to a service that regularly copies data to secure cloud storage, retains it according to defined policies, and enables on-demand recovery. 

The service provider manages the underlying infrastructure, software updates, and much of the day-to-day operational burden. Organizations retain control over what data is protected, how long it is retained, and who can initiate recovery. 

This shift matters because modern data estates no longer exist in a single environment. Data spans SaaS applications, public clouds, virtual infrastructure, endpoints, and business-critical services. Traditional backup strategies were built for environments organizations controlled end to end. Today's distributed digital estates require a different approach 

What Is BaaS? Backup as a Service Explained 

BaaS, short for backup as a service, delivers backup and recovery through a subscription-based model rather than organization-owned hardware. Like other cloud service models, it transforms what was once a capital investment into a predictable operating expense. 

A BaaS solution stores backup data in geographically separate locations, encrypts data in transit and at rest, and provides centralized controls for managing backup policies and recovery. Its defining characteristic is that responsibility for maintaining the health and availability of the backup platform largely rests with the service provider rather than internal IT teams. 

How Backup as a Service Works 

A BaaS deployment follows a consistent pattern. First, a lightweight connector or agent links the service to your sources, whether that is a Microsoft 365 tenant, a Salesforce org, a fleet of virtual machines or a set of endpoints. Second, the service takes an initial full backup and then captures only what changes, which keeps ongoing data transfer and storage efficient. Third, backups are written to immutable cloud storage, so a copy cannot be altered or deleted for a defined period, even by an administrator. Fourth, retention policies decide how many versions are kept and for how long, often to satisfy compliance rules. Finally, when something is lost, you recover it at the level you need, from a single file or mailbox to an entire system, using point-in-time snapshots. 

For a wider view of how backup fits into a complete recovery strategy, see AvePoint's guide, The Ultimate Guide to Data Resiliency: Why Backup Alone Isn't Enough. 

The business case for BaaS centers on minimizing downtime and reducing the impact of data loss. When critical systems become unavailable, operational disruption can quickly translate into revenue loss, productivity challenges, compliance concerns, and reputational risk. 

According to the Uptime Institute Annual Outage Analysis 2025, more than half of surveyed operators reported that their most recent significant outage cost more than $100,000, while one in five reported costs exceeding $1 million. Recovery speed is more than a technical objective. It directly influences business continuity, operational resilience, and financial outcomes. 

The market has responded accordingly. Independent research firm Mordor Intelligence values the cloud backup market at $5.36 billion in 2025 and projects it will reach $21.62 billion by 2031, a compound annual growth rate of nearly 25 percent. Escalating ransomware, rapid SaaS adoption and stricter data resiliency rules are pushing organizations away from tape and self-managed backup toward elastic, cloud-delivered protection. 

Three forces make BaaS the practical answer for most enterprises:

• Ransomware increasingly targets backup repositories. Modern attacks often attempt to encrypt or delete recovery data, making immutable and isolated backup copies a foundational resilience safeguard. 
• SaaS data remains your responsibility. Providers such as Microsoft, Google, and Salesforce maintain platform availability, but organizations remain responsible for protecting and recovering their own data under the shared responsibility model. 
• Operational simplicity. Managed services reduce the burden of sizing, maintaining, patching, and upgrading backup infrastructure, allowing IT teams to focus on strategic initiatives that drive business value. 

That last point connects backup to the broader discipline of cloud operations, or CloudOps, where the goal is to run cloud services reliably and cost effectively at scale. 

Backup as a service and disaster recovery as a service are often mentioned together and sometimes confused. They solve related but distinct problems. BaaS is about protecting and recovering data. DRaaS is about recovering entire environments and keeping them running after a disruption. The comparison of BaaS vs DRaaS is really a comparison of two questions: how do I get my data back, and how do I keep operating while I do. 

What Is DRaaS? 

Disaster recovery as a service replicates whole systems, including servers, applications and their configurations, to a standby environment in the cloud. If your primary site fails, DRaaS fails over to that standby so operations continue with minimal interruption. The measure that matters most for DRaaS is recovery time objective, or how quickly a workload must be back. DRaaS optimizes for near-immediate failover, which is why it typically costs more than backup alone. 

When to Use BaaS vs DRaaS 

The choice is not either or. It is a matter of matching each workload to how much downtime and data loss it can tolerate. Use BaaS for the broad protection of data across SaaS, endpoints and general systems, where recovering within hours is acceptable and cost efficiency matters. Use DRaaS for the handful of Tier 1 systems that must return in minutes, where an outage halts revenue or safety. Most enterprises run both: BaaS as the wide foundation and DRaaS for the critical few. The supporting table later in this guide summarizes the distinction at a glance. 

Not all backup as a service providers protect the same things or to the same standard. When you evaluate options, weigh capability against the specific workloads you run rather than against a generic feature list. A provider that excels at endpoints may be thin on SaaS, and a provider strong on virtual machines may not cover business applications your teams depend on. 

Core Capabilities of a Cloud Backup Service 

• Immutability and isolation. Backups should be written once and unchangeable for a set period, stored separately from production so an attacker who reaches your environment cannot reach the backups. 
• Coverage that matches your estate. The best cloud backup service protects where your data actually lives. 
• Granular and full recovery. You should be able to restore a single item or a complete system from a chosen point-in-time. 
• Security and compliance. Look for encryption in transit and at rest, role-based access and retention controls that map to the regulations you are subject to. 
• Recovery assurance. Successful recovery is the true measure of protection. Organizations should be able to validate and test recovery processes confidently because backup value is ultimately measured by successful restoration. 

For SaaS coverage specifically, confirm the provider protects the platforms your business runs on, such as Microsoft 365, Google Workspace and Salesforce. Because backup increasingly overlaps with security, mature providers also align recovery with posture management disciplines such as cloud security posture management, or CSPM. 

Backup as a service pricing is usually subscription based, which replaces large periodic hardware purchases with a predictable operating cost. Common models include per user pricing for SaaS workloads such as Microsoft 365, per workload or per virtual machine pricing for infrastructure, and per gigabyte pricing tied to the volume of data stored. Buyers should look beyond the headline rate to the total cost of protection over time. 

Watch for these factors when comparing backup as a service pricing:

• Storage growth. As data grows, per gigabyte models scale with it. Predictable per user pricing can be easier to budget. 
• Egress and recovery fees. Some providers charge to retrieve data. Recovery you pay a penalty to use is a poor bargain during an incident. 
• Retention length. Longer retention for compliance increases stored volume and therefore cost. 
• Connector and API limits. Verify the workloads you care about are fully covered rather than partially supported. 

The most important consideration is not simply the lowest subscription cost. The stronger return on investment comes from dependable recovery outcomes that help organizations maintain continuity, reduce downtime, and recover confidently when disruptions occur.

AI has created a new category of business-critical data requiring protection. Training datasets, fine-tuned models, vector databases, and supporting pipelines have become valuable organizational assets, and losing them can significantly delay innovation initiatives. 

As AI programs move from experimentation into operational deployment, protecting AI data becomes increasingly important for maintaining business continuity, governance, compliance, and confidence in AI-driven outcomes. BaaS for AI workloads extends proven resilience practices such as immutability, versioning, and rapid recovery to these emerging data types. 

The wrinkle is that AI data is often large, changes constantly and is distributed across cloud infrastructure and services. Protecting it well means understanding dependencies, so a restored model connects to the correct version of its training data and retrieval index. This is where resilience meets governance. As enterprises extend protection across the data AI learns from, the infrastructure it runs on and the agents that act on its behalf, backup becomes part of a wider effort to secure and govern your entire AI estate, so innovation scales without scaling risk. 

Supporting Table: Backup as a Service at a Glance 

For 25 years, AvePoint has helped organizations protect, govern, and maximize the value of their data. Today, more than 28,000 organizations and 6,000 channel partners rely on AvePoint solutions to strengthen resilience across increasingly complex digital estates.  

AvePoint Cloud Backup delivers automated, immutable, and granular protection for critical business platforms, including Microsoft 365, Google Workspace, and Salesforce. Organizations can recover exactly what they need, from individual items to entire environments, while maintaining the visibility and control required for compliance, governance, and operational resilience.  

Resilience requires more than backup alone. By combining protection, recovery assurance, security, and governance, AvePoint helps organizations recover confidently from disruption, reduce operational risk, and support innovation at scale. The result is a unified approach to protecting, securing, governing, and recovering data across the entire digital estate.