Co-founder, INXY Payments · Barcelona

20 years launching products and sales. I help founders do the same, no bullshit.

Fintech, e-commerce, manufacturing: more than 50 launches from idea to series. I host the No Bullsh!t and Made It podcasts and co-lead Founders ES in Barcelona.

Sergey Kuznetsov
$2B+
Annual turnover at INXY
6x
Year-over-year growth
50+
Products built from scratch
50+
Podcast episodes

Figures according to data from INXY Payments and my own projects: $2B+ of yearly volume, 6x growth, 50+ products, as of 2026.

About

From De'Longhi coffee machines to crypto payments

Product, commercial, sales: I've gone from zero to one more than fifty times. Premium appliances (De'Longhi, Kenwood, taking Nespresso from boutiques into retail), LG, systems integration at Polymedia, reviving declining categories at Rusklimat.

At ATMEEX I built a smart-climate business from scratch and sold my stake to a developer. I took Arteza through a 120 million dollar deal. The last few years, fintech: co-founder of INXY Payments, a bridge between ordinary business and crypto payments.

I live in Barcelona and have been through the full expat-founder path: legalisation, a Spanish company, banking, taxes. The deal sizes and product counts above are according to data from the companies I worked in and co-owned.

Work with me

Two ways to work together

One-off session

An hour or half an hour

€450 an hour · €250 for half an hour · no more than 2 sessions a week
  • Scaling and growth
  • Intros and network
  • Unblocking what is stuck
  • Kick-off session
Reach out to me
Ongoing

Mentorship and consulting

€2,000 a month · 3 hourly calls plus a strategy review · work on one project
  • Scaling and fundraising
  • Product launches, zero to one
  • Hiring and team motivation
  • Intros into my network
  • AI Second Brain set up for the founder
Reach out to me
The two formats side by side: price, rhythm, what for
WhatOne-off sessionMentorship and consulting
Price450 euro an hour, 250 euro for half an hour2,000 euro a month, covering 3 hourly calls and a strategy review
FormatA single call, you pick the timeA month of work, the first call runs an hour
What forUnblocking what is stuck, a kick-off session, intros and networkScaling, fundraising, product from zero to one, hiring
How much I take onNo more than 2 sessions a week, sometimes fewerOne project at a time
How to startFill in the brief; the payment and booking buttons appear right after it
Ventures

What I'm building

INXY Payments

A fintech bridge to crypto payments

Crypto acceptance, mass payouts and crypto-fiat conversion for established businesses. Authorised in the EU and Canada.

Visit
Founders ES · Barcelona

Community co-lead

The largest community of Russian-speaking founders in Spain, part of the global Founders network. I help expat entrepreneurs find partners.

Podcasts

Conversations with founders

RU · YouTube

No Bullsh!t: business, unfiltered

50+ episodes with founders from the Russian-speaking scene. How companies really get built, no PR.

All episodes
EN · launching soon

Made It

The English-language edition with founders from a global network. First episodes soon.

Open the channel

Top 3 episodes

Telegram

No Bullsh!t channel

240+ posts between episodes: breakdowns, observations and notes on founder life.

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FAQ

The questions I get most

How do we work together, and what does it cost?

Two formats. A one-off session: 450 euro an hour, 250 euro for half an hour, and no more than 2 sessions a week, sometimes fewer. Mentorship and consulting: 2,000 euro a month, covering 3 hourly calls and a strategy review, with work on one project. Both start with the brief on this site; the payment and booking buttons appear right after you send it.

What do founders bring to these sessions?

Scaling and growth, fundraising, product launches from zero to one, hiring and team motivation, unblocking one specific thing that is stuck, intros into my network, setting up an AI Second Brain for the founder.

What do I need to do before the call?

Fill in the brief: the company and what it does, revenue over the last 12 months, how it moved in the last six, where you stand on funding, the key blockers and the single biggest problem. It is there so the hour goes into the work instead of into context.

Where are you based, and how do the calls work?

I live in Barcelona and work online. The slot is picked on cal.com right after the brief, and payment goes through there and secures the time.

What are the podcasts?

No Bullsh!t in Russian: conversations with founders about failures, deals and growth. 49 episodes are on this site, each with a summary, key ideas and a full transcript. Made It, the English-language edition, is getting ready to launch.

Let's talk

Tell me your task and we pick the format: a one-off session or monthly work.