Most agencies talk about their work in case studies. We'd rather point at code. Our plugin catalog is the clearest signal of how we think about WordPress: small, focused tools that solve one problem well and stay maintained long after launch.
Shipping our own products forces the same discipline we bring to client work. We feel every rough edge, every upgrade path, every support request. That feedback loop makes us better engineers and keeps our recommendations grounded in what actually holds up in production.
If you're evaluating a partner, the catalog is a good place to start. It's the work, in public, that you can install and read for yourself.