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Andrés Sullivan
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2023–2024 · Wound down · CEO

The Q-Studio

Zero to 22 people, three countries and seven shipped products in under a year. Then the only client stopped paying.

01 · Situation

One client. Nine companies a year.

The Q-Studio opened in October 2023 as a venture builder built on people-centred design and technology. In practice it was the venture-building arm of a single investment fund, which wanted to launch around nine companies a year with us as it turned itself into a services group. Barcelona was headquarters, Mexico City was where the client lived, and San Francisco was an outpost so we could see what was coming to Europe a few months early.

We built the products, absorbed the fund's earlier customer-experience studio when its lead left, and I ran the Q House project: a seven-floor, 2,500 m² innovation hub for 400 people, 50 metres from Paseo de Gracia, with my COO piloting the build.

02 · Hardest moment

Six figures a month to zero, almost overnight.

In late 2024 the fund stopped paying and, shortly afterwards, ceased to operate. Revenue of six figures a month went to zero in weeks, with 22 people on payroll and Q House in the works, backed by a multi-million-euro investment commitment that was never honoured. Every product we had built for the client went down with it.

03 · The move

Close it cleanly. Keep the ten best. Start again the same month.

I wound the company down the way I always try to: fast, honest, with introductions and time to search for everyone who left. I kept the ten best people. Four of them became partners and forwent salary in the first month, because we had no clients yet. That is how QS Ventures began.

What we had built in those months went with us: high-performing teams, a brand and a culture, CRM and KPIs, a product methodology (the Product Sandbox: discovery, ideation, build, validation, development and performance in 10–12 weeks with weekly checkpoints), a CFO, a desk at BBVA Spark, seven products delivered and thirteen proposals waiting.

  • Two phones showing the Xpats app home and events screens, dark UI with purple accent, on a rockXpats app Explore services screen with category chips and service cards for language, data and visa

    App + web

    Xpats

    Relocation companion for expats: events, wallet, services marketplace and community, with a card request flow.

  • Twolander website homepage with the headline 'The art of living abroad' shown on a laptop on an armchairFull-length screenshot of the Twolander homepage: hero, services, magazine issue and stories sections

    Website (no-code)

    Twolander

    Brand site with magazine and blog, taken from discovery to live in weeks.

  • Three phones showing Thunder NFT app screens: home, passes list and NFT claim detail, dark UI with lime accentThunder NFT website hero 'The new fan engagement platform' shown on a laptop

    App + web

    Thunder NFT

    Event ticketing with NFT collectibles: explore events, scan, claim and keep a wallet of passes.

  • Three phones showing Colors fintech app screens: credit builder level, home with credit balance chart, and credit cardColors physical card mockup, front and back, with a green-to-blue gradient and asterisk logo

    Fintech app

    Colors

    Digital credit and credit-builder app with card, levels and offers, designed through three sitemap iterations.

  • Three phones showing Dreamboosters mobile web screens: landing, property form and pre-offer summaryDreamboosters website 'Finance to shine' on a folded laptop mockup with a phone showing the blog

    App + web

    Dreamboosters

    Financing product with chatbot-led onboarding, eligibility calculator, e-signature and payment tracking.

  • Three stacked phones showing XYApp investor app screens: portfolio total, news and contracts, white UI with red accentOverview of XYApp screens laid out diagonally: contracts, card, news, portfolio and contact

    Investor app

    XYApp

    Portfolio, contracts and investment tracking for a corporate client's investor community.

  • Intranet

    Cockpit XY

    Internal cockpit for a corporate client, mobile and desktop, live.

Exterior render of the Q House building facade in Barcelona with a rooftop gardenArchitectural section drawing of the seven-floor Q House building, white lines on dark background
Q House: the seven-floor hub planned 50 metres from Paseo de Gracia. Facade render and section.
Q Studio brand style guide: logo cards, Lexend typography sample, color palette, icon family and button stylesQ Studio website About Us page shown on a laptop against a black background with orange light streaks
The Q-Studio identity and website, built in the first months.

04 · Numbers

Eight months.

€0→€500k
revenue in eight months, no outside funding
0→22
people hired in the first year
7
products delivered, 4 of them in the first six months
3
offices: Barcelona, Mexico City, San Francisco

05 · What I'd do differently

Never one client.

Concentration risk killed a company that was working. Diversification was on the roadmap for the second half of 2024; it needed to be the first item, not the seventh. QS Ventures was designed around that lesson: five companies, several revenue lines, each one founder-operated.

I count the closure as a win. The team, the method and the clients' trust carried straight into the next company, and the next company is still running.