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Sergey Didenko
Founder of OnStudy, entrepreneur
Started out in sales — making the calls, negotiating and tracking the funnel himself — then built sales teams, for his own companies and for clients. Since 2016 he has been growing OnStudy and advising business owners on sales, processes, teams and putting AI to work. At the school he teaches programmes on sales, marketing, management and working with AI.
In brief
- Specialism
- Sales and negotiation, business processes, team management, putting AI to work
- Experience
- Built sales teams for his own companies and for clients; founder of the OnStudy learning centre
- Current practice
- Consulting and mentoring for business owners and managers
- Education
- Lomonosov Moscow State University
- Class formats
- Video lessons, practice on your own business, reviews of real calls and deals, live sessions
- Who it suits
- Business owners and managers, sales managers, marketers and anyone getting to grips with AI
About the tutor
Sergey Didenko is the founder of OnStudy and an entrepreneur. He started out in sales, went on to build sales teams, and later took on processes, the financial model and the team as a whole.
“For nine years I have been doing the same thing: taking a business apart and putting it back together so that it runs without the owner steering it by hand.”
“Alongside that I built OnStudy — an education company running since 2016. It is my own business, with all the same problems: hiring, unit economics, automation, putting AI into everyday work. I speak from running it, not from theory.”
From Sergey’s one-to-one consulting pageWhat he teaches
- Handling objections and closing deals without pressure
- Building a sales team: scripts, CRM, metrics
- Documenting processes so the company runs without the owner steering by hand
- Building marketing and social media content
- Using AI in everyday work
Experience and projects
Sales and sales teams
Started as a sales rep: calls, negotiations, the funnel. Then built sales teams — for his own projects and for clients.
OnStudy
An education company running since 2016: hiring, unit economics, automation and putting AI into everyday work — on his own business.
Advising business owners
One-off reviews, diagnostics and mentoring: sales, processes, teams, putting AI to work.
How classes work
Based on the programmes Sales, Negotiation and Results and A Profitable Business.
Theory
Modules with video lectures — Sales, Negotiation and Results has 14 of them.
Practice
Assignments are done on your own business, with support from curators.
Reviews
Reviews of real calls and deals, not textbook cases.
Outcome
The final project is a working tool, not a test: a script, a CRM and a plan.
His programmes
Questions about the programmes?
We’ll help you choose which of Sergey’s programmes suits your goals and level, and explain how the classes work.
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