Niche B2B SaaS: how we partner with industry insiders to ship the first version

How Tsunami Digital partners with industry experts to build niche B2B SaaS products. Our process, deal structures, and what we look for in a partner.

We do not build generic software. We partner with industry insiders — people who know a vertical better than any outsider ever could — to build focused B2B SaaS products that solve real problems for real businesses. This article explains how the partnership works: what we look for in a partner, how we structure deals, what the process looks like, and what kind of ideas we find compelling.

What “niche B2B SaaS” means

Niche B2B SaaS is software built for a specific industry vertical, sold to businesses (not consumers), and delivered as a subscription service. Examples:

  • Compliance tracking for financial advisors
  • Job scheduling for HVAC contractors
  • Inventory management for specialty food distributors
  • Project tracking for architecture firms

These are not glamorous Silicon Valley ideas. They are practical tools that solve expensive, recurring problems for businesses that are currently using spreadsheets, email, and manual workarounds. That is exactly what makes them good businesses.

Why we partner (not just build)

Most agencies build what you ask for and send an invoice. We do that too — for projects where it makes sense. But for niche B2B SaaS, we prefer partnership because:

  • Alignment. When we have skin in the game (equity or revenue share), we care about the product’s long-term success, not just delivery.
  • Better products. A partner who will live with the product for years makes different architectural and design decisions than one who is leaving after launch.
  • Shared risk. The founder invests less cash upfront. We invest hours. Both sides are motivated to build something that sells.

What we look for in a partner

Not every idea or founder is a fit. We evaluate four things:

1. Domain expertise. You have worked in the industry for 5+ years. You understand the workflows, the pain points, and the regulatory landscape. You can explain the problem without using the word “disruption.”

2. Access to customers. You can name 10–20 businesses that would try the product in its first month. You have relationships, not a marketing plan. Distribution is the hardest part of SaaS — and you already have it.

3. Willingness to sell. Building the product is our job. Selling it is yours. If you are uncomfortable with sales calls, demos, and follow-ups, this model does not work.

4. Realistic expectations. v1 will not be perfect. It will take 3–6 months to get to product-market fit. Revenue will start small. If you expect €100,000 MRR in month two, we are not aligned.

Our process

Phase 1: Discovery (1 week, €2,000–€5,000). We learn your industry, map the workflow, define the core hypothesis, and scope the MVP. You get a written brief, wireframes, and a detailed estimate — regardless of whether we proceed together. For details, see Discovery sprint: how it removes 80% of project risk.

Phase 2: Build the MVP (8–14 weeks). Our team designs, develops, and tests the first version. You are involved weekly: reviewing progress, making domain decisions, testing with early users.

Phase 3: Launch and iterate (ongoing). We launch to your initial customers, measure behaviour, fix what is broken, and iterate based on real data. This phase is where the product becomes real.

Deal structures we use

StructureCash you payWhat we receiveBest for
Full cash€15,000–€50,000Nothing beyond paymentClear scope, available budget
Cash + equity€8,000–€25,0005–15% equity (vesting)Venture-track ideas
Cash + revenue share€5,000–€20,00010–20% net revenue, cappedProfitable niche businesses

For a deeper comparison, see build partner vs paying upfront and equity for software development.

Verticals we find compelling

We are industry-agnostic in principle, but we find certain verticals particularly interesting:

  • Construction and trades. High operational complexity, low digital maturity. See software for construction companies.
  • Logistics and supply chain. Scheduling, routing, and inventory problems that spreadsheets cannot solve.
  • Professional services. Law firms, accounting practices, consultancies that want to productise their methodology. See productizing services.
  • Healthcare operations. Clinic management, patient scheduling, compliance tracking (not clinical AI — that is a different game).
  • Hospitality. Restaurant management, hotel operations, event coordination. See software for restaurants.

What happens after v1

The partnership does not end at launch. Typical post-v1 trajectory:

  • Months 1–3: Collect feedback from first customers, fix critical issues, add the most-requested missing feature.
  • Months 4–6: Expand to 20–50 customers, refine pricing, establish support processes.
  • Months 7–12: Evaluate growth trajectory and decide on the next phase — raise capital, scale organically, or bring in a CTO to lead development.

Frequently asked questions

How long does it take from first conversation to live product? Typically 3–5 months: 2–4 weeks for Discovery and alignment, 8–14 weeks for the build, 2 weeks for launch preparation.

What if we disagree on product decisions? You are the domain expert. We are the technical experts. In case of disagreement, domain decisions default to you, technical decisions default to us. This is established clearly before work begins.

Do you keep working on the product after launch? Yes, either on a retainer basis (monthly maintenance and iteration) or as part of the ongoing partnership arrangement.

Have a niche idea worth exploring?

Book a free 30-minute call. We will listen to your idea, ask the hard questions, and tell you honestly whether it is a fit for partnership — or whether a different path makes more sense.

Reach out at [email protected] or via the form on our homepage.

All articles