Founder Interview
How Greencast BV Onboarded 10 Customers at Around €300 Per Month to Track Carbon Emissions (Interview with Founder Konstantinos Kouzelis)
- Interview Date
- March 24, 2022
- Interviewee
- Konstantinos KouzelisFounder
Company Metrics at Interview Time
Customers (2022)
10
ARPU (2022)
€300 per month
Pre-Seed Raised (2021)
€400K
Team Size (2022)
6
Engineers (2022)
2
Historical Snapshot
These numbers were reported by Konstantinos Kouzelis during his interview with Nathan Latka recorded in March 2022 and are a historical snapshot, not current figures. See Greencast BV’s current numbers.

Key Takeaways
- 01Greencast BV launched in September 2021 and had around 10 customers live on the platform by March 2022
- 02Average revenue per paying customer is around €300 per month
- 03The company raised a €400K pre-seed round in 2021 at a roughly €5M cap
- 04The team has 6 people total, including 2 engineers based in Poland
- 05The MVP was built in a matter of weeks for approximately €20K through agency CVT Services
- 06The company was considering raising between €2M and €3M in a seed round before summer 2022
- 07Each sustainability consultant partner signs on an average of 3 new customers per month
- 08The company has a free plan for startups that have raised less than €2M in funding
Company Metrics at Time of Interview
| Metric | Value | Source |
|---|---|---|
| Customers (2022) | 10 | Founder interview, March 2022 |
| ARPU (2022) | €300 per month | Founder interview, March 2022 |
| Pre-Seed Raised (2021) | €400K | Founder interview, March 2022 |
| Pre-Seed Valuation Cap (2021) | €5M | Founder interview, March 2022 |
| Team Size (2022) | 6 | Founder interview, March 2022 |
| Engineers (2022) | 2 | Founder interview, March 2022 |
| MVP Build Cost | €20K | Founder interview, March 2022 |
| Runway Remaining (2022) | 11 months | Founder interview, March 2022 |
| New Customers per Consultant per Month (2022) | 3 | Founder interview, March 2022 |
| Year Founded | 2021 | Founder interview, March 2022 |
Growth Breakdown
Revenue
Greencast BV had 10 customers on the platform at the time of the interview, with an average revenue per paying customer of around €300 per month. The company offers a free plan for startups that have raised less than €2M, with enterprise customers paying above €1,000 per month.
Customers
The first customer came through inbound press coverage in The Netherlands via a startup journal. By March 2022 the company had 10 live customers and a growing pipeline with a backlog of prospects to onboard.
Team
The team stood at 6 people in March 2022, including 2 engineers hired as direct employees but initially sourced through Polish agency CVT Services. The company was actively hiring to support growth.
Funding
Greencast raised a €400K pre-seed round in 2021 at a roughly €5M cap with a discount. At the time of the interview the company had approximately 11 months of runway and was considering a seed raise of €2M to €3M before summer 2022.
Growth Strategy
Inbound from Press Coverage
The company's first customer came through an article in a Dutch startup journal, generating inbound conversations even before the product was fully functional. Inbound leads continue to be a channel, though the team noted it is time-consuming.
Sustainability Consultant Partnerships
The primary growth lever is a partnership proposition targeting sustainability consultants who currently rely on spreadsheets and email. By giving consultants a software platform, Greencast gains a multiplier effect: each consultant brings on an average of 3 new end customers per month.
Outbound Sales
The team pursues outbound sales alongside inbound and partnerships, though hiring demands have limited how much focus can be placed on outbound at any given time.
Freemium Entry Point
A free plan for startups that have raised less than €2M lowers the barrier to entry and builds pipeline for eventual conversion to paid tiers.
Best Quotes
“So I started building on the company by making a clickable demo in July 2021. Actually started the company in September '21. And I was a one man team with a pitch deck with which I raised 400 ks pre seed rounds. And then actually started building out the team, the product, and doing sales. And we've closed our first customers now. They're really happy and growing actually above expectations.”
“Yeah. So now we have around 10 customers on our platform live, but the pipeline is filling up and we're actually trying to onboard as many of them as possible. But we have a little bit of a backlog which we're working on.”
“So the growth strategy is actually threefold. So we do inbound sales. We don't do as much of that as we would like to because it's quite time consuming. We have some inbound leads that we take on, but most importantly, we're trying to differentiate through our partnership proposition.”
“Yeah, so the team size at the moment, we're with six and we're expanding rapidly. We're hiring, which is one of the reasons that we can't focus much on outbound sales at the moment. We need to make trade offs.”
“Yeah. So we have run way for quite a while now to go. But we're looking How at raising a bit earlier. We have about eleven months left. That's, yeah, so on the burn rate we're predicting, but we're looking at raising around earlier on. So even before the summer, we're considering it because we see that the partnership proposition is getting a lot of traction and we want to deviate from actually requiring us to get consultants in house to actually empowering them to do their job better.”
“Yeah, think our story is now that we show very strong traction with the consulting proposition. And what makes that unique is that every consultant signs on an average of three new customers each month, which then become our customers. So the growth compounds. While we sell to one consultant, that means that every month we'll get three new customers signed up. And obviously that is very strong.”
“I think about 20 k, which was quite affordable.”
What Happened Next
This interview captured Greencast BV at an early stage in March 2022, just months after launching in September 2021 with 10 customers and a €400K pre-seed round. The figures here are a point-in-time snapshot reported by the founder and do not reflect the company's current state. Visit the Greencast BV profile on GetLatka for the latest available data.
View Greencast BV’s current profile and metricsFull Transcript
Chapters
- 0:00Introduction and Product Overview
- 0:21How the Carbon Measurement Platform Works
- 0:43HR and E-Commerce Data Sources Explained
- 2:31Company Founding Story and Pre-Seed Raise
- 3:0310 Customers on the Platform
- 3:21Story of the First Customer
- 6:32Growth Strategy: Inbound, Outbound, and Partnerships
- 7:17Team Size and Hiring
- 7:37Pre-Seed Round Details and Valuation Cap
- 7:48Runway and Seed Round Plans
- 8:41Consultant Partnership Multiplier Effect
- 9:05Engineering Team in Poland and the Agency Question
- 10:35MVP Build Cost and Timeline
- 11:27Famous Five Rapid Fire
- 12:52Closing Recap
Introduction and Product Overview
Nathan Latka
00:00Folks. My guest today is Konstantinos Kouzelis. He's a Greek born and raised in The Netherlands. He founded Greencast straight out of university to help companies measure, analyze, and report on their climate impact. The website is greencast.io. Konstantinos, you ready to take us to the top? Yep. All right. So how do you do this? Do they have to install any physical objects to do the measurement or it's all software?
How the Carbon Measurement Platform Works
Konstantinos Kouzelis
00:21>> Yeah. So no, we're actually a carbon management software platform. We're software as a service. And what we do is that we invite our customers to connect their data sources, such as their accounting, their e commerce platforms, or their HR system, CRM. We pull the data, we make the conversions and the calculations and they get their emission impact back.
HR and E-Commerce Data Sources Explained
Nathan Latka
00:43What might one of these companies have on their HR system that enables you to quantify their carbon emission?
Konstantinos Kouzelis
00:49>> Yeah. So, for instance, in the HR systems, we see a lot of travel movements, lunch expenses. Actually the activities that employees perform during their work, which in the end all result to some sort of emissions.
Nathan Latka
01:06And what's an example of that same thing? But if they attach their e commerce data source, what could you see there?
Konstantinos Kouzelis
01:11>> Yeah, so for instance, for e commerce, we see the products that the companies we serve have sold. So let's say you serve a commerce, well, a party that sells washing machines, these products do not only impact the environment at the moment they're produced, but also after they're sold. So for the lifetime of this washing machine, it's going to consume energy, which is going to have an impact on climate and that's something we use to map the
01:38>> complete impact of what a business does across Scope one, two and Scope three.
Nathan Latka
01:42And so when these founders want to quantify their carbon impact, what are they willing to pay you per month to use your technology right now? What's your average customer revenue?
Konstantinos Kouzelis
01:51>> Yeah, so our customer revenues range from 1 or €90 per month up until 1,000 plus. And it's really dependent on how far your business is. For startups that have raised less than 2,000,000 in funding, we have a free plan and the rest above 1,000 are enterprise customers which want to dive, well, let's say deeper into their supply chains.
Nathan Latka
02:12And what would just for the paying customers, what would you say the sweet spot is? About 100 and what, $250 a month or something like that?
Konstantinos Kouzelis
02:20>> Yeah. A bit above. I think around 300 is the the sweet spot.
02:24>> So about 380 United States dollars per month, something like that.
Nathan Latka
02:27Yeah. Interesting. Give me the backstory here. When did you launch the company?
Company Founding Story and Pre-Seed Raise
Konstantinos Kouzelis
02:31>> So I started building on the company by making a clickable demo in July 2021. Actually started the company in September '21. And I was a one man team with a pitch deck with which I raised 400 ks pre seed rounds. And then actually started building out the team, the product, and doing sales. And we've closed our first customers now. They're really happy and growing actually above expectations.
Nathan Latka
03:00How many customers sit on the platform?
10 Customers on the Platform
Konstantinos Kouzelis
03:03>> Yeah. So now we have around 10 customers on our platform live, but the pipeline is filling up and we're actually trying to onboard as many of them as possible. But we have a little bit of a backlog which we're working on.
Nathan Latka
03:15That's awesome. Congratulations on your first 10 customers. Tell us the story of how you got the first one.
Story of the First Customer
Konstantinos Kouzelis
03:21>> Yeah, so the first one was actually quite a funny story because we got some press here in The Netherlands through a startup journal that found us and that resulted in quite some conversations coming inbound while product wasn't working yet. But this was a really small consulting firm somewhere from the East Of The Netherlands where we didn't expect our first customers to come from, but just people that are willing to try new products and that are willing
03:47>> to take the leap with us. Yeah, that's how we started.
Nathan Latka
03:51That's amazing. Okay, so 10 customers at about $380 per month in revenue means you're doing about $4,000 a month right now on revenue. Is that right?
Konstantinos Kouzelis
03:59>> Yeah. Pretty much.
Nathan Latka
04:01Oh, what's going on there, YouTube? Good to see you guys. Now imagine this. You love watching these interviews with SaaS founders, but imagine if we took all of the valuation data out from over 2,807 interviews I've done manually. Saves you a lot of time. Well, we've done this, we've built it into the beautiful interface inside of Founderpath. Check this out. I'll show you how you can access this in a second. But you log in, you connect
04:24your Stripe account, you see your valuation real time, you can see what it changed over the past eighty eight days and even set goals for valuation this year. Now the secret evaluation is there's many different ways to value a SaaS business. So the reason you're gonna see three or four different valuations inside of your Founderpath dashboard, this is all free by the way, is because depending on who's doing the buying of your SaaS company, you're gonna
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05:10not built off random data. Again, you guys hear these interviews on YouTube. All these datas are built from real time valuation data points founder share with us on the show. So traction 1,200,000 seed round 3.7 raise. They sold 22% of their business. Go in here and filter by the event. Maybe you only wanna see companies that have sold the whole business. Well, here are a bunch that have been acquired the valuation and the multiple. Maybe you're
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06:24into the interview. And you said that you're growing fast. You have a long wait list now. How are you getting new signups today? What's the growth strategy?
Growth Strategy: Inbound, Outbound, and Partnerships
Konstantinos Kouzelis
06:32>> So the growth strategy is actually threefold. So we do inbound sales. We don't do as much of that as we would like to because it's quite time consuming. We have some inbound leads that we take on, but most importantly, we're trying to differentiate through our partnership proposition. So the product that we originally built is a carbon accounting platform for businesses to use themselves, but we actually saw very large pain points with sustainability consultants which use hacky
07:01>> Excel forms and email to do their analysis. And we want to empower them by providing them with software platform and the software tools to do their work faster, more efficient and eventually better.
Nathan Latka
07:12Fascinating. Okay, so partnerships outbound and inbound makes a lot of sense. What's the team size today? How many folks?
Team Size and Hiring
Konstantinos Kouzelis
07:17>> Yeah, so the team size at the moment, we're with six and we're expanding rapidly. We're hiring, which is one of the reasons that we can't focus much on outbound sales at the moment. We need to make trade offs.
Nathan Latka
07:29And, Konstantinos, when you did the pre seed round of $400,000, was that at the traditional sort of $5,000,000 cap?
Pre-Seed Round Details and Valuation Cap
Konstantinos Kouzelis
07:37>> Yeah. So for European standards, yeah, pretty much. Yeah. With a cap and discount, let's say around 5,000,000.
Nathan Latka
07:43Yeah. Interesting. And are you looking at raising now or no?
Runway and Seed Round Plans
Konstantinos Kouzelis
07:48>> Yeah. So we have run way for quite a while now to go. But we're looking How at raising a bit earlier. We have about eleven months left. That's, yeah, so on the burn rate we're predicting, but we're looking at raising around earlier on. So even before the summer, we're considering it because we see that the partnership proposition is getting a lot of traction and we want to deviate from actually requiring us to get consultants in house
08:19>> to actually empowering them to do their job better.
Nathan Latka
08:21Mhmm. And if you did raise before the summer, how much would you target to raise?
Konstantinos Kouzelis
08:26>> Yeah. So between 2 and €3,000,000.
Nathan Latka
08:29Mhmm. Mhmm. Okay. And what would sort of the story be? In other words, you need to manage delusions. So in order to get whatever a $10 to 20,000,000 valuation, what story do you think you have to tell?
Consultant Partnership Multiplier Effect
Konstantinos Kouzelis
08:41>> Yeah, think our story is now that we show very strong traction with the consulting proposition. And what makes that unique is that every consultant signs on an average of three new customers each month, which then become our customers. So the growth compounds. While we sell to one consultant, that means that every month we'll get three new customers signed up. And obviously that is very strong. That makes a
09:04>> lot of sense.
Engineering Team in Poland and the Agency Question
Nathan Latka
09:05Of the six people on your team, how many are engineers?
Konstantinos Kouzelis
09:08>> Two are engineers and they're actually offshore in Poland. And the funding that we would raise during our seed round would be to get engineering in house as much as possible.
Nathan Latka
09:20Is the Poland team an outsource engineering firm?
Konstantinos Kouzelis
09:23>> No, actually, are direct hires, but we started on an agency basis. But we believe that to scale fast and to take these first steps, we need to have a local team that is able to bridge the gap between us and the offshore engineering team.
Nathan Latka
09:39You had an agency before this or you started your engineering team via an engineering agency?
Konstantinos Kouzelis
09:44>> Yeah. Exactly. Exactly. The second part.
Nathan Latka
09:46The second one. Okay. Got it. Which agency did you work with?
Konstantinos Kouzelis
09:50>> CVT Services. And they're much recommended, to be honest. They're great.
Nathan Latka
09:54CVT Services?
Konstantinos Kouzelis
09:56>> CVT. Valentin. Cedric Valentine Theodor.
Nathan Latka
10:00Ah, okay.
10:02Okay. CVT Services based in Poland. Yeah. How did you find them?
Konstantinos Kouzelis
10:08>> Through references. I've got some friends here who have started their businesses and met quite some people on the way, and they were recommended by three people. I spoke with them, obviously spoke with a lot
10:21>> of agencies, but they were committed to making the business successful and not so much trying to push hours rather than deliver quality. And not the cheapest around, but you get quality fortune paid for.
MVP Build Cost and Timeline
Nathan Latka
10:35Yeah, mean, was gonna be my question. So like, about how much do you think you paid to have them build your MVP to the point where you could sell your first customer, you think?
Konstantinos Kouzelis
10:43>> I think about 20 k, which was quite affordable.
Nathan Latka
10:45Okay. Yeah. That's not that's not terrible. And how long did it take them to build it?
Konstantinos Kouzelis
10:51>> Matter of weeks.
Nathan Latka
10:52Oh, wow.
Konstantinos Kouzelis
10:53>> Couple weeks.
Nathan Latka
10:54Okay.
10:55Cool. And so I guess why do you want to move now in house? Why not keep using CVT?
Konstantinos Kouzelis
11:01>> Well, they're great. But obviously, when you serve more when they serve more customers, there's bottleneck in how fast you can move. They need to take account that they need to serve more customers in a week. So you don't have a full time team dedicated to you. And that's the reason we decided to hire in house so we have people that can jump on every problem right away and continue building at the times that we don't have
11:26>> issues to work on.
Famous Five Rapid Fire
Nathan Latka
11:27Well, Konstantinos, this is a great story. I'm rooting for you. Let's wrap up here with Famous Five. Number one, favorite business book?
Konstantinos Kouzelis
11:33>> Favorite business book.
11:37>> Let me think. I really liked The Almanac of Naval.
11:41>> Yep.
Nathan Latka
11:42Number two, is there a CEO you're following or studying?
Konstantinos Kouzelis
11:46>> There's many I'm following or studying. Here in The Netherlands, there's a CEO called Rene Janse, Founder of Lepaya, an upskilling platform for employees. And I think he has had a great journey, came from consulting but completely pivoted into entrepreneurship.
Nathan Latka
12:01Are you going to the SaaSiest conference from SaaS Nordic up there in Malmo, Sweden?
Konstantinos Kouzelis
12:09>> I haven't signed up yet, but I'll have a look.
Nathan Latka
12:11Very cool. Alright. Number three. What's your favorite online tool for building the business?
Konstantinos Kouzelis
12:16>> For me, it's Figma.
Nathan Latka
12:18Figma. Yep. Number four. How many hours of sleep do get every night?
Konstantinos Kouzelis
12:21>> I try to get eight hours of sleep a night. Eight. But obviously, that's different some nights.
Nathan Latka
12:27And what's your situation? Married? Single? Kids?
Konstantinos Kouzelis
12:31>> I have a girlfriend. Not married. Going to move in very soon.
Nathan Latka
12:34Very cool. And how old are you?
Konstantinos Kouzelis
12:36>> I'm 27.
12:38>> 27.
Nathan Latka
12:39Last question. Something you wish you knew when you were 20.
Konstantinos Kouzelis
12:42>> Oh, that's a good one. Something I wish I knew I was 20, that I would be doing this at the moment. I really have my doubts about where I was gonna end up, but I'm really happy with the path that I chose.
Closing Recap
Nathan Latka
12:52Guys, he's launched greencast.io to help companies understand what their carbon footprint looks like. You connect your e commerce platform. He looks at what products you sell and estimates. You connect your HR, and he understands, wow, your employees spend a lot of time entering things in the HR system. Here's how much computer energy they're using up. Here's the carbon emission from that. Really tries to quantify all of this stuff. Going last year in September 2021. Is onboarded
13:1310 customers paying an average $400 a month. They're doing about $4,000 a month in revenue. They raised $400,000 pre seed last year to hire their first six team members at a 5,000,000 cap, looking at potentially raising 2 to €3,000,000 here in a seed round before summer. We'll see what happens. Konstantinos, thanks for taking us to the top.
Konstantinos Kouzelis
13:30>> Thank you very much.
Nathan Latka
13:33One more thing before you go. We have a brand new show every Thursday at 1PM Central. It's called Shark Tank for SaaS. We call it deal or bust. One founder comes on, three hungry buyers, they try and do a deal live and the founder shares back end dashboards, their expenses, their revenue, ARPU, CAC, LTV, you name it, they share it and the buyers try and make a deal live. It is fun to watch every Thursday 1PM
13:58Central. Additionally, remember these recorded founder interviews go live. We release them here on YouTube every day at 2PM Central. To make sure you don't miss any of that, make sure you click the subscribe button below here on YouTube, the big red button, and then click the little bell notification to make sure you get notifications when we do go live. I wouldn't want you to miss breaking news in the SaaS world, whether it's an acquisition, a big
14:21fundraise, a big sale, a big profitability statement or something else. I don't want you to miss it. Additionally, if you want to take this conversation deeper and further, we have by far the largest private Slack community for B2B SaaS founders. You want to get in there. We've probably talked about your tool if you're running a company or your firm if you're investing. You can go in there and quickly search and see what people are saying. Sign
14:42up for that at nathanlatka.com/slack. In the meantime, I'm hanging out with you here on YouTube. I'll be in the comments for the next thirty minutes. Feel free to let me know what you thought about this episode and if you enjoyed it, click the thumbs up. We get a lot of haters that are mad at how aggressive I am on these shows, but I do it so that we can all learn. We have to counter those people.
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