Bastiaan Janmaat

Who is Bastiaan Janmaat?

Bastiaan Janmaat is the CEO and co-founder of DataFox, a San Francisco-based company intelligence and sales data startup. He took the SaaStock Europe 2016 stage to talk through one of the least glamorous but most decisive challenges any B2B software company faces: how to build an outbound sales strategy from a standing start. His framing was refreshingly candid. As he told the audience, he is a first-time CEO, and rather than position himself as someone with a repeatable formula, he described his approach as a set of experiments — some of which worked, and some of which clearly did not.

That honesty set the tone for the whole talk. Janmaat opened by joking that he could not even pick his own entrance music, then quickly moved into the substance: the concrete things DataFox tried while assembling an outbound motion, and the mistakes the team made along the way. He was explicit that there was, in his words, no evidence any of it would work more than once — a deliberate caution against the over-confident, prescriptive playbooks that dominate so many sales conference stages.

His most pointed lesson came from a single early misstep. One of the bigger mistakes the team made, he said, was leaving it too late to start building the outbound function — a timing error that founders repeatedly underestimate. That theme, of treating sales as something to be designed early and iterated on rather than bolted on once a product feels finished, runs through his SaaStock appearance. This page collects Bastiaan Janmaat's recorded SaaStock talk, with the transcript, for founders and operators studying how early-stage companies stand up an outbound sales engine.

About DataFox

DataFox is a company intelligence platform headquartered in San Francisco, the city Janmaat referenced from the stage when he introduced himself as its CEO. The company operates in the broad category of sales and account data — the kind of structured information about companies that revenue teams use to find, prioritize, and reach prospects. For a business in that space, the company's own go-to-market motion is more than an internal exercise; it is a live test of the exact problem its product helps customers solve.

That context makes Janmaat's SaaStock talk especially fitting. Rather than presenting DataFox as a finished success story, he used the company as a working example of a young startup figuring out outbound sales in real time. The themes he raised — sequencing the build of a sales function, running experiments to learn what resonates, and being honest about what has not worked — reflect the day-to-day reality of an early-stage team that is still discovering its repeatable motion.

Because Janmaat deliberately avoided presenting his approach as proven, the most useful takeaway about DataFox is methodological rather than statistical. The talk is a snapshot of a first-time CEO building a sales organization from scratch, treating each tactic as a hypothesis to be validated rather than a guaranteed lever. For founders evaluating how and when to invest in outbound, DataFox's early experience offers a grounded, experiment-driven counterpoint to the polished frameworks more often pitched from the stage.

Key lessons from Bastiaan Janmaat's talks

Start building outbound earlier than feels necessary. Janmaat singled out leaving the outbound effort too late as one of the bigger mistakes his team made. Founders tend to defer sales infrastructure until the product feels ready, but the time required to hire, experiment, and find what works means the function should be designed early — not retrofitted once growth stalls.

Treat your sales strategy as a set of experiments, not a formula. As a self-described first-time CEO, Janmaat was clear that some things worked and others did not, and that there was no evidence any single tactic would repeat. The honest posture here is the lesson: approach outbound as a series of hypotheses to test, keep what produces results, and discard what does not.

Stay skeptical of prescriptive playbooks — including your own. By openly noting there was no proof his approach would generalize, Janmaat pushed back against the certainty that surrounds most sales advice. Early-stage founders benefit more from a learning mindset than from copying a formula that worked once for someone else in a different context.

Lead with candor about what hasn't worked. Janmaat built his talk around mistakes as much as wins, which makes the material more useful to operators facing the same uncertainty. Being transparent about failed experiments — internally and with peers — accelerates learning far more than only sharing the highlight reel.