The Filament pitch

Your product isn't the problem. Their blank stare is.

I'm Justin Kestelyn (call me JK), founder of Filament. I find the message that makes buyers understand why you win, then builds what your sales team needs to carry it without the founder in the room.

The gap

Strong products still lose

Most early-stage B2B teams don't struggle because the product is weak. They struggle because a buyer or user can't tell, within seconds, what problem gets solved, why this product is different, and why any of it matters to them.

The usual response is to spend more on selling: more reps, more content, more demand generation. That treats a clarity problem like a volume problem, but it skips a critical step. Before a message can scale, it has to be tested against how buyers actually make decisions. And to survive a sales team, it has to leave the founder's head.

Where I work

Pick the gap that's costing you

Every engagement (fractional, retainer, or project-based) starts with a free 30-minute call, scoped to your needs.

Positioning & messaging
Sales enablement
Go-to-market strategy
Packaging & pricing
ICP & buyer definition
Competitive positioning
Category & market narrative
Company & investor narrative
Best fit

Built for founders past first validation

Early-stage companies are my sweet spot. If you're further along, these are the signals that still make it a fit:

Who does the work

Five companies, one consistent pattern

I've done this work over 20 years as a product marketing or devrel leader at Google (including an internal Area 120 startup), Cloudera in the run-up to its 2017 IPO, Oracle, Yellowbrick Data, and Bugcrowd. Different scales, same challenge: converting the technical user who has to trust the product, and the economic buyer who has to justify it.

I learned that the winners weren't always the ones with the best product. They were the ones who closed that gap first.

AI can give you positioning in minutes; the hard part is knowing if it will land. That's where experience matters: I've been in the room when the pitch lands—and when it doesn't.