The most honest measure of a building's water system is not the utility bill, but the sound of the pipes. It is a low, wet hum of normalcy, punctuated by the hiss of a leak, the gurgle of a toilet, and the percussive rhythm of a shower. For eight years, Mark Kovscek has been teaching a machine to understand that language.
His Pittsburgh startup, Conservation Labs, sells a hockey-puck-sized sensor called H2know that clamps onto a building's main water line. It listens, taking an acoustic reading every second, and uses machine learning to translate those vibrations into a detailed log of water use, fixture-by-fixture classification, and instant alerts for catastrophic leaks [TechCrunch, February 2024]. The promise is a single, non-invasive device that can tell a property manager not just that water is flowing, but whether it's a running toilet in unit 4B or a broken irrigation line in the courtyard.
The acoustic wedge
The company's wedge is elegant in its simplicity. Instead of installing individual smart meters on every fixture, a costly and invasive retrofit, H2know uses one sensor at the property's entrance. The machine learning model, trained on the acoustic signatures of thousands of water events, learns to disaggregate the total flow [Momenta Ventures, August 2020]. It is a classic software solution to a hardware problem: replace a network of physical meters with a single, smarter listener.
This approach targets a specific, financially motivated buyer: the owner of multifamily, hospitality, or commercial real estate. For them, water represents a direct operating cost and a latent liability. A single undetected leak can cause tens of thousands in damage; inefficient fixtures silently inflate bills. Conservation Labs reports that customers using H2know have reduced water use by 20% or more [Mann Report, February 2024]. The product's cloud dashboard provides the granularity to back that up, showing usage by date, time of day, and fixture category [Smart Water Monitor - H2know by Conservation Labs, retrieved 2024].
A founder's second act
Kovscek founded the company in 2016, a later-career venture after decades as a mathematician and data science entrepreneur [Dealroom, retrieved 2024]. The origin story, as he tells it, is grounded in personal frustration: a costly leak at his own home crystallized the need for better monitoring [Dealroom, retrieved 2024]. The path from idea to shipped product was long, spanning multiple seed rounds beginning in 2019. The investor list that formed reflects a mix of strategic and impact capital, from the Amazon Alexa Fund to climate-focused firms like GreenGen Ventures [PR Newswire, November 2019] [GreenGen Ventures, October 2020].
The traction, while modest, shows a focused commercial path. By February 2024, the company had approximately 150 company customers and had reached "seven digit" annual recurring revenue in 2023 [TechCrunch, February 2024]. The recent $7.5 million Series A, led by RET Ventures' Housing Impact Fund, is a bet that this model can scale within the fund's core constituency: multifamily housing owners [TechCrunch, February 2024].
| Round | Date | Amount | Lead Investor(s) |
|---|---|---|---|
| Seed | Nov 2019 | $1.7M | IrishAngels, Amazon Alexa Fund, Serra Ventures, Mountain State Capital, Innovation Works [PR Newswire, November 2019] |
| Seed | Aug 2020 | Undisclosed | Momenta Ventures [Momenta Ventures, August 2020] |
| Seed | Oct 2020 | Undisclosed | GreenGen Ventures [GreenGen Ventures, October 2020] |
| Series A | Feb 2024 | $7.5M | RET Ventures’ Housing Impact Fund, Sustain VC [TechCrunch, February 2024] |
| Total disclosed funding reaches $9.5 million [TechCrunch, February 2024]. |
The expansion gambit
With the Series A capital, Conservation Labs is pursuing a dual-track expansion. The first is deeper penetration into multifamily and commercial real estate, where RET Ventures' connections provide a direct line [TechCrunch, February 2024]. The second is more speculative: an expansion of its core acoustic analysis technology into a broader platform called Sustainable Machines, which aims to diagnose other building equipment malfunctions using sound [citybiz, February 2024]. It is a logical, if ambitious, extension of the core IP: if you can hear a leak, perhaps you can also hear a failing HVAC compressor or a faulty pump.
This move hints at the larger market Conservation Labs is quietly addressing. It is not just selling water conservation, but predictive maintenance for the built environment's most fundamental systems. The value shifts from saving on a utility bill to preventing a $50,000 insurance claim.
The quiet competitor
The most credible risk for Conservation Labs is not a flashy direct competitor, but the inertia of the status quo. The incumbent is not another tech startup, but the conventional plumbing inspection: a human with a clipboard, or more often, no inspection at all until a problem becomes visible. The sales motion requires convincing property owners to pay for visibility into a cost center they have historically treated as a fixed, opaque line item.
The company's answer is a straightforward unit economics story. Run the numbers: the average U.S. multifamily unit uses about 50,000 gallons of water annually. A 20% reduction saves 10,000 gallons. At a conservative blended water and sewer rate of $0.01 per gallon, that's $100 saved per unit, per year. For a 100-unit building, that's $10,000 in annual savings, not counting avoided damage. The H2know sensor and service need to cost meaningfully less than that to clear the ROI hurdle, a bar the company says its customers are meeting [Mann Report, February 2024].
For Conservation Labs to graduate from a clever sensor company to a category-defining platform, it must do more than beat the plumber's occasional visit. It must become the unblinking, always-on nervous system for a building's water health, making the old way of not knowing seem recklessly expensive. The sound of success, in this case, would be the quiet hum of a system working exactly as intended, and a property manager who never has to think about it.
Sources
- [TechCrunch, February 2024] Conservation Labs uses sound to diagnose plumbing issues | https://techcrunch.com/2024/02/21/conservation-labs-uses-sound-to-diagnose-plumbing-issues/
- [Momenta Ventures, August 2020] Sensor AI & ML Venture Capital: Conservation Labs | https://www.momenta.vc/insights/sensor-ai-ml-venture-capital-conservation-labs
- [Mann Report, February 2024] RET Ventures Leads $7.5M Series A in Conservation Labs | https://www.mannpublications.com/mannreport/2024/02/21/ret-ventures-leads-7-5m-series-a-in-conservation-labs/
- [Smart Water Monitor - H2know by Conservation Labs, retrieved 2024] Product page | https://conservationlabs.com/
- [Dealroom, retrieved 2024] Conservation Labs, venture-backed company profile | https://dealroom.co/companies/conservation-labs/
- [PR Newswire, November 2019] Conservation Labs Raises $1.7 Million in Seed Funding for Smart Water Monitor | https://www.prnewswire.com/news-releases/conservation-labs-raises-1-7-million-in-seed-funding-for-smart-water-monitor-300957049.html
- [GreenGen Ventures, October 2020] GreenGen Ventures Announces Investment in Conservation Labs | https://greengen.com/newsroom/greengen-ventures-announces-investment-in-conservation-labs/
- [citybiz, February 2024] RET Ventures Leads $7.5 Million Series A in Conservation Labs | https://www.citybiz.co/article/523398/ret-ventures-leads-7-5-million-series-a-in-conservation-labs/