Why do users sign up but never stick around?
Users sign up, poke around, some return the next week, but very few stick for long
The inflection point in
your revenue growth
I help B2B SaaS & AI founders find a Go-to-market Fit
and build an efficient Growth Engine
Mike Kosorukov
Founder of MKG Lab
Ex-
,
alum
,alum
Trusted by 10+ B2B SaaS startups backed by top investors
Hi, I'm Mike Kosorukov
I am a GTM and Product Growth expert. I started in tech as a founding GTM hire at a YC-backed startup, where I spent months trying to sell a product nobody wanted — until YC and later Reforge reshaped how I approach startup growth.
For the last seven years, I've helped multiple B2B SaaS and AI companies find go-to-market fit, drive new bookings, and build durable self-serve revenue engines.
Talk to me
or connect via social:
CHALLENGES
Tough challenges I help B2B founders crack
Every sale feels like an uphill battle
We get customers, but growth is slow and nothing compounds.
What is the best motion for us?
Product-led, Sales-led, or Product-led Sales - choosing one feels like a gamble.
Our customers churn faster than we acquire new ones
It feels like we're stuck in a loop with no way out.
Who is our ideal customer?
We have firmographic ICPs, but they don't tell us how to market or sell our product.
... and more.
CASE STUDIES
Results that compound
Early-stage
Product-led
PLS
$150k to $2M ARR Growth in 1.5 years
The business had strong product signals but revenue was not compounding. We tightened ICP and positioning, rebuilt the path from website to first value, and aligned GTM with product onboarding — resulting in $150k to $2M ARR growth in 1.5 years.
Full study
Growth-stage
GTM
Engineering
$1.2M in net-new qualified pipeline
The initial audit surfaced a clear segment-level opportunity. The product delivered strong value for a specific customer segment, but the GTM motion was not optimized for that segment. We refocused positioning and messaging, rebuilt the website flow to proactively capture high-fit accounts and convert them into meetings, and updated sales scripts and workflows, generating $1.2M in net-new qualified pipeline in 2.5 months.
Full study
B2B Marketplace
Scale-up
Sales-led
Customer churn reduced by 30%
The existing growth constraint was high early churn. Analysis showed that churn was driven by inconsistent service quality on the supply side, which hampered the customer experience early in the lifecycle. We identified the key leading indicator tied to churn, mapped the highest-impact levers, and rebuilt the supplier quality loop. This improved the leading churn metric by 40× and reduced customer churn by 30% over the next three months.
Full study
“Thanks to Mike's work, we had impressive positive changes in how we go to market and how our funnel works.”
Kirill Chabanov
CMO & COO at aqua cloud
TESTIMONIALS
From the teams I've worked with
Jonathan Kite
CEO at Rent Ready, a Real Estate Marketplace
“From discovery through execution, ... Mike's contributions significantly elevated our product, and his dedication to customer-driven innovation was evident in every project he touched.”
Dhruv Yadav
Founder at NoClick
“The diagnostic gave us clarity on where to focus and surfaced the highest-leverage GTM opportunities.”
Leonid Netrebskii
Head of Software Engineering at Rent Ready, a Real Estate Marketplace
“Mike revolutionized our product approach: development teams are now happy to see the goals and values of their work, and product managers are focused on business impact.”
Heather DeAcosta
Head of Product and Technology at Rent Ready
“Mike's approach to testing ideas helped us make informed product decisions. He was especially skilled in leading effective customer interviews, providing us with valuable insights that shaped our strategies.”
Kirill Chabanov
COO at aqua cloud, a Test Management SaaS
“Mike's sharp in understanding the market and the customers, often diving deep into research and data analysis. That helped us a lot with better positioning of our product.”
Kateryna Hornysh
Head of Product at aqua-cloud
“Mike consistently impressed me with his strong focus on the customer needs and his commitment to driving growth for key metrics. If you're looking for someone who truly knows how to deliver results, Mike is your guy :)”
FORMAT
Three paths toward durable growth
GTM Diagnostic
I do a 360° diagnostic of your positioning, growth model, and go-to-market motion. I deliver an assessment with a clear path to success.
- One week to deliver
- Get data-backed GTM decisions
- Receive a clear action roadmap
Ongoing Partnership
Ongoing engagement with weekly deep-dives. We fix what's broken, identify your growth levers, and execute a focused GTM strategy together.
- 3-12+ months engagement
- Get business results, not deliverables
- Flexible engagement format
Focused Engagement
Time-bound projects with clear deliverables: redesign activation flow, build a foundational GTM strategy, or fix your positioning and messaging.
- 2-3 weeks sprints
- Get specific results fast
- Hands-on execution in tranches with your team
Not sure what's best for you?
Start here
1-on-1 free consultation
- 30-45 minutes call
- Discuss your challenges
- Explore working together
WHY MIKE
A commercial brain for your tech startup
| Full-time hire | Advisor | On my own | |
|---|---|---|---|---|
| Hands-on execution | ||||
| Expert judgement | Serial founders | |||
| Full-stack expertise | ||||
| "Has done it" before | Serial founders | |||
| Outcome-based pricing | N/A | |||
| Weekly deep-dives | N/A |