$360 / month
Start free, decide later
I want to mentor founders at $0 to $10m where I have most expertise. This means working with you on your PMF, GTM strategy and making sure you're putting in place the correct levers for growth.
I'm a serial founder and sales leader with deep experience scaling SaaS businesses from $0 to $10M ARR.
I've got a track record of building GTM growth plans using Outbound, LinkedIn, automation, Clay etc. and I've got 20 years of experience leading high-performance SDR and AE teams.
If you need to drive pipeline generation, outbound campaigns, demos, and deal closures, hit me up. I've coached founders who have subsequently raised more than $30m in funding.
Makers: $0 to $10m in 6 years, 3,800% growth on the b2b side
TechMap: $0 to $600k in 4 years, fully bootstrapped
KittOffices, Mumsnet, Nutrifix, CheckStep, RunYourself, Generation, SesameHR, FullFabric, The Level Group, Learnerbly, Inkpact: I've coached or been hands on with all those companies helping them with their GTM strategy
5 out of 5 stars
Had two sessions with Ruben already. Both times Ruben focused heavily on what's important to our startup in the GTM specifically. On a first session, we discussed CusDev vs Sales talks and it helped update our comms with clients to get much more signals, arising the real problem we should solve. On a second session Ruben asked the questions that helped us to focus on the right customers to talk to, and ways to upgrade the budgets we go for by switching to a different roles in companies we talk to. Grateful to Ruben for all the help
Session: Ask Me Anything - 30 …
5 out of 5 stars
Ruben was extremely helpful and brought a very practical, founder-oriented perspective to our discussion. He quickly understood the challenges I’m facing around positioning, GTM strategy, ICP, and how to prioritize between different product opportunities. The conversation gave me much more clarity on the decisions I need to make next. I would definitely recommend Ruben to founders looking for experienced and actionable strategic advice.
Session: Ask Me Anything - 60 …
You tell Ruben your goals. They see exactly what you want to work on before session one.
You meet within days. Ruben reviews your application and books your first session, usually within a day or two.
You leave with a plan. Concrete next steps and a weekly rhythm from your very first week.
Ruben Kostucki
Serial Startup Founder x Sales/GTM Leader at None
Enter your email and we'll let you know when Ruben has open spots. You'll also get a link to manage your wishlist – no account needed.
Book a free intro call with Ruben
Connect with Ruben in a quick call (usually 15-20 minutes)
One-off sessions with Ruben
One-off sessions are a great option if you're looking for specific advice on a certain topic.
Whatever doesn't fit the mold: Get 30 minutes with a mentor to discuss your needs. Be it help with some code, discussing through an issue …
Whatever doesn't fit the mold: Get a full hour with a mentor to discuss your needs. Be it help with coding something, deciding on a …
What's included in the trial?
Every trial is a little different–here's what Ruben says about their trial:
We'll meet for a quick call (usually under 30 minutes) where we:
- Break the ice and introduce ourselves
- Discuss your goals and how I can support you
- Coordinate logistics like time zones, meeting frequency, and communication methods