AWS Landing Zone Foundation

Enterprise-grade AWS account structure designed for security, scalability, and compliance from day one.

Overview

We design and implement a secure, scalable AWS foundation using AWS Organizations and best-practice account structure. This ensures your infrastructure can safely scale as your company grows without expensive retrofits.

Who this is for

• Early-stage startups setting up AWS for the first time

• Companies scaling rapidly who need governance before they need compliance

• Organizations consolidating from a single-account AWS setup

What we implement

AWS Organizations structure

• Management account for billing and governance only (no workloads)

• Security/Logging account for centralized audit logs and threat detection

• Separate production and non-production accounts

• Organizational Units (OUs) with inheritance-based policy application

Service Control Policies (SCPs)

• Prevent disabling CloudTrail or GuardDuty

• Enforce MFA for all console access

• Block creation of public S3 buckets

• Restrict to approved AWS regions

Security baseline

• GuardDuty enabled and centralized across all accounts

• Security Hub with AWS Foundational Security Best Practices

• CloudTrail with immutable log storage in the logging account

• Config rules for drift detection

Networking foundation

• Multi-AZ VPC architecture with public, private, and isolated subnets

• Transit Gateway for multi-account connectivity (if needed)

• Secure egress via NAT Gateway with logging

Infrastructure as Code

• Fully CDK-based — reproducible, version-controlled, testable

• Modular constructs your team can extend

Outcomes

• Secure, scalable AWS foundation

• Blast-radius containment between environments

• Clean cost attribution by account

• Compliance-ready from day one

Ideal timing

Early-stage startups, or companies scaling rapidly who haven't implemented proper account separation yet.