KEEP

The Customer

Keep is an AI-powered platform for managing contracts and payments in the advertising and creative media industry. They help production teams streamline project setup, contract generation, and payment workflows, positioning themselves as the only dedicated online platform for safe and secure contracting and payments in advertising. They are trusted by leading brands in creative media.

The Problem

Keep needed a technology partner who could understand their complex requirements around integrating contract templating with payment management, invoicing, KYC capture, and distributing payments to multiple parties. They needed someone with startup product experience who could move fast and think strategically, but also had the expertise to build scalable applications and deep knowledge of payment workflows. Additionally, their digital signatures had to be legally valid in both the EU and the US, meeting strict compliance standards.

The Solution

Rather than reinventing the wheel, we conducted deep research into existing technologies that were both startup-friendly and cost-effective. We adopted MangoPay for payment processing and DocuSeal for digital signatures - both more affordable than market-leading alternatives but with comparable service levels for Keep's specific needs.

We built a KYC workflow, underpinned by MangoPay, to ensure Keep meets anti-money-laundering regulations end-to-end — verifying the identity of paying and receiving parties before any funds move through the platform.

We built a template management system that allows users to create and customise their own contracts instead of relying on hardcoded HTML templates. The system tracks custom payables within contracts, automatically generates invoices from those payables, and enables users to batch multiple contract payables into single invoices for streamlined payment processing.

The S16 Difference

Our differentiator was bringing genuine startup product experience to the table - we could advise on strategy and iterate quickly alongside building scalable applications. We understood their constraints and could move fast, which is exactly what an early-stage company needs. We didn't treat this as a generic development project, but as a strategic partnership where we guided product direction while delivering robust infrastructure.