System connectivity
Direct integrations with CRM, ERP, data warehouse, Microsoft 365 and Slack — via official SDKs, OAuth 2.0 and event-driven webhooks.
AI Integration
Embed AI into the systems your teams already use — safely, measurably, in daily operations.
We connect language models to your ERP, CRM and data sources and ship productive interfaces, not isolated pilots.
Topology
A central routing layer for every AI call your company makes.
Instead of binding each tool to a single provider, every prompt flows through your own hub: logged, cached, routed and governed.
Capabilities
Three pillars for a durable AI layer in regulated enterprises.
From the first data flow to production operations — we build the layer between your systems and the model with German compliance baked in.
Orchestration
Routing, caching and tool selection in a service of your own — no vendor lock-in, with fallback-capable provider strategies.
Governance
EU hosting, audit trails and fine-grained access — GDPR and the EU AI Act are not afterthoughts, they are architectural choices.
Connectors
Battle-tested connectors for the systems your teams use every day.
We bring proven connectors — and extend them with your internal APIs, so integration goes live in weeks, not quarters.
Live
SAP S/4HANA
ERP
Live
Salesforce
CRM
Live
HubSpot
CRM
Live
Microsoft 365
Mail & Files
Live
SharePoint
Documents
Live
Slack
Chat
Live
AWS S3
Storage
Live
Okta
Identity
Approach
From data audit to production in four phases.
Each phase ends with a verifiable deliverable — no big bang, just stable increments.
- Phase 01
Data & API audit
Inventory of your systems, interfaces and data classification — including PII mapping.
- Phase 02
Layer design
Architecture of the routing and tool layers — aligned with your existing cloud and identity infrastructure.
- Phase 03
Secure wiring
Implementation of connectors with OAuth 2.0, audit log and EU hosting — penetration tests included.
- Phase 04
Operations & monitoring
Observability, cost control and continuous prompt improvement — with clear KPIs.
By the numbers
This is hafencity.dev
15+ Experts
Engineers, designers, and strategists working as one practice from our Hamburg HQ.
50+ Clients
Companies across consumer, healthcare, and B2B trust us with their digital products. Long-term partnerships are the default.
97% Recommendation rate
Repeat engagements and references our buyers actually call. Trust compounds when delivery does.
50+ Launches
Custom mobile and web products shipped from concept to maintenance — owned end-to-end by our team.
100% In-house
Strategy, design, and engineering all live at our Hamburg HQ. One team, one project lead, accountable to you from kickoff to launch.
Since 2023
Helping companies ship digital products — and growing alongside the teams we work with.
Next steps
Let's talk about your project
Book a 30-minute discovery call. We'll review your goals, surface unknowns, and outline how we would run the engagement.