SideQuester is an AI-native venture studio. We pick narrow, under-served niches; build websites, tools and matching marketplaces that actually own those niches; and operate them as a fleet. 27+ live UK sites and counting.
"A UK accountant" loses to "a UK accountant who specialises in Amazon FBA sellers" every time. The internet is already saturated with generalists. Niche specialists win on search, on LLM citation, and on conversion — all three, at once.
A single SaaS product takes years to find product-market fit. A fleet of niche sites finds revenue faster, surfaces winners by signal, and shares infrastructure under the hood. The fleet is the unit of bet, not any one site.
The internal tooling matters more than the front-end. We built Bloxx (our own CMS) so we can spin up a new niche site in days, not months. AI does the heavy content lifting; humans direct strategy and edit the edges.
Three product bets — Bloxx, Watermelon and Onsite — sit on top of a wider fleet of niche specialist marketplaces, calculators and authority sites. Each one is a real business; the fleet is the strategy.
The CMS built for AI search. Multi-site, schema-automatic, llms.txt-native. Tracks AI bot traffic alongside Google. Powers every site on this list.
itsbloxx.com AI-native SaaS · FlagshipThe fractional Chief Automation Officer plus the platform underneath. We map your processes, build the automations, and stay to run them.
itswatermelon.com Operating System · FlagshipOne login for every part of a UK trade business. Insurance, banking, accounting, expenses, CIS, and an AI assistant that knows the business.
joinonsite.co.ukWe don't write code from scratch for each site. We invested upfront in the tooling (Bloxx CMS, the Watermelon process registry, the AI content pipeline) so we can ship a new niche site in days, not months — and the fleet evolves together as the design system updates.
Look for a high-intent UK query cluster that generalists serve badly. Test demand with a small ad spend or organic experiment.
Bloxx generates the homepage, calculator, FAQ schema, and cluster pages with the right author byline and JSON-LD. Days, not weeks.
One CMS, one editor, one matching engine. Improvements propagate. Underperformers get pruned. Winners get more content + more links.
SideQuester is a one-founder venture studio with AI as the workforce. I've spent the last decade building and operating businesses around accounting, automation and consumer financial tools. SideQuester is the unifying frame — every project here is a focused bet, each one cheaper than the last because the underlying machinery improves.
If you're building in a similar shape (specialist marketplaces, AI-native SaaS, fleet operations), or you want to use Bloxx for your own niche fleet, get in touch.
Whether you want to use one of the products, work with us as a specialist partner in one of the niches, or you're a fellow builder who wants to compare notes — drop us a line.
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