Sell First, Market Later: The Go-to-Market Sequence Every B2B Startup Needs

B2B high-tech startups — from AI and cybersecurity to biotech and industrial IoT — are engines of innovation. 

They create jobs, introduce new technologies, and drive economic growth. Investment in European B2B startups surged 211% between 2015 and 2020 and reached $58 billion in 2025, with AI leading for the first time.

The Trust Gap Holding Startups Back  

Yet most of them fail. One reason is painfully underestimated: the very technologies that make their offerings valuable are exactly what make potential customers hesitate. 

An AI startup may need access to sensitive company data to train its models. A cybersecurity venture must be trusted not to introduce new vulnerabilities. An IoT provider may require deep integration into production systems. The more sophisticated the technology, the higher the trust barrier.

Researchers call this the liability of newness. Young companies lack track records, reputations, and the customer trust that established firms take for granted. 

In B2B markets, that gap is especially punishing. Buying decisions can be slow, risk-averse, and involve multiple stakeholders. The old logic "nobody gets fired for buying IBM" still runs deep. Long sales cycles drain scarce resources. And because buying decisions often involve multiple stakeholders with different priorities, startups must learn to translate their solution into several “languages” at once: the language of the CFO, the CTO, the end user, and everyone in between. The communication burden on young firms is enormous.

Sales and marketing are the natural tools to close this gap. But when we interviewed B2B high-tech founders for our study, many struggled to see them that way. The mindset was familiar: We have more important issues to focus on. 

One CEO put it bluntly: "Marketing is the most important thing, but completely underestimated by techie founders — they do not like it, they do not know how to do it, and they understand too late how important it is."

From Handshake to Homepage

To understand how sales and marketing create value for startups, we conducted in-depth interviews with founders and a longitudinal panel study of more than 300 B2B high-tech startups, published in the Journal of Marketing Research together with Maximilian Friess, Sascha Alavi, Verena Maag, and Jan Wieseke. The interviews revealed two fundamentally different mechanisms.

1. Personal sales means face-to-face engagement: trade fair conversations, tailored demos, and direct outreach. Its core function is network deepening — building trust through personal, repeated exchange. 

In complex B2B settings where a single deal can take months of explanation, this personal dimension is often existential. As one industrial-services founder explained, his technology required so much explanation that each customer’s relationship took months to build, but once a buyer committed, the bond was durable.

2. Mass-media marketing — content creation, SEO, advertising, social media campaigns — serves a different purpose: network broadening. It simplifies complex offerings for a wide audience, builds brand visibility, and establishes ties with entire customer and investor ecosystems at scale. 

A software startup founder described the goal as generating a consistent customer experience and being perceived as attractive and professional by customers, business partners, investors, and even their customers’ customers.

Both are expensive. For resource-constrained startups where every euro counts, the critical question is: do these investments actually pay off, and when? 

The dynamic reverses once the product is proven and the first customers are on board. A ten-percentage-point increase in the mass-media marketing budget at this stage corresponds to an expansion of the customer base by around 12%. Online referrals, content marketing, and advertising attract new customer segments and generate a continuous pipeline of leads. The startup’s initial customer success stories become powerful material for broader communication.

Personal sales remain valuable in later stages, particularly for deepening existing relationships, enabling cross-selling, and serving high-value accounts. However, start-ups that stay overly reliant on a small number of personal ties risk constraining their growth and missing opportunities to reach new markets.

What Founders Can Do Now

The lesson is not that startups should spend more in general. They should spend more strategically — matching their go-to-market investments to their stage of development.  

Personal sales first, to build close relationships that overcome the trust deficit. Mass-media marketing is second, to scale once the product and business model are validated. Getting that sequence wrong is a reliable way to underperform.

Too many founders still believe that if the technology is strong enough, the market will discover it on its own. It will not. Even the best solution needs explanation, trust, and sustained market presence. Founders who recognize this early — and allocate their limited resources accordingly — will be the ones who turn groundbreaking technology into lasting business success.

We conducted in-depth interviews with 15 senior managers and founders of B2B high-tech start-ups, followed by a longitudinal panel survey tracking founders and top-level executives across four waves over 20 months, producing up to 598 start-up-wave observations. The sample covers start-ups from diverse high-tech industries, including IT, SaaS, cybersecurity, biotech, and Industry 4.0. The study combines primary survey data with archival sources and employs panel regression models with corrections for selection bias and endogeneity.