SaaS Multi-Tenant Architecture on AWS | Applying Consulting

Applying Consulting is an AWS Advanced Partner with combined cloud and software engineering expertise, helping ISVs transition to multi-tenant SaaS architectures that improve margins with every new customer added.

What is multi-tenant SaaS? In a multi-tenant model, all customers share the same application and infrastructure, but each customer only sees their own data. Think of a coworking space: shared floors, shared utilities, individual locked desks. Each new customer does not require new infrastructure — the marginal cost of adding a customer approaches zero as the platform scales.

The unit economics advantage: Applying Consulting helps ISVs calculate two fundamental metrics: cost per user and cost per transaction. These metrics reveal the scaling curve — as the customer base grows 20–30% year over year, AWS costs grow at a much lower rate. The margin per customer improves with each new customer added. This is the difference between a business that scales (multi-tenant) and one that merely survives (single-tenant forever).

What we deliver:

• Multi-tenant architecture design (pool model or silo model based on requirements)
• Tenant data isolation implementation (row-level security, schema isolation)
• Per-tenant metering (cost per user, cost per transaction)
• Automated customer onboarding (minutes, not days)
• Auto-scaling unified resource pool serving all tenants

Business impact: Each new customer improves your margin instead of consuming it. Data-driven pricing decisions based on real unit economics. Competitive differentiation through operational efficiency at scale.

This service relates to Amazon ECS, Amazon EKS, Amazon Aurora (row-level security), Amazon DynamoDB, Amazon API Gateway, Amazon Cognito, Amazon CloudWatch, and AWS Cost Explorer.