Best Waste & Water Management Companies in Tennessee, United States
The 34 best Waste & Water Management companies in Tennessee, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Santek.
Our analysis of 50 Waste & Water Management companies
$2.9b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Waste & Water Management companies in Tennessee
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Santek Provider of waste collection and disposal services to domestic, commercial & industrial customers | $75M | 89 mo ago | Acquired | Kenneth Higgins Founder & CEO | 1987 | — | — | — |
| 2 | Glanris Waste water recycling company | $5M | 40 mo ago | Series A | Tom Volinchak Co-Founder | 2018 | — | 3 patents Activated carbon regeneration and biosorbent-based heavy metal wastewater treatment | — |
| 3 | RAS-Tech Manufacturer of asphalt-based products using recycled waste | $4M | 161 mo ago | Seed | Tom Zickell Founder | 2007 | — | — | — |
| 4 | Greenrise Technologies Provider of greenroof and stormwater management services | $2M | 110 mo ago | Acquired | Rob Pepper Founder | 2006 | — | — | — |
| 5 | Novastus Provider of waste management solutions | $606K | 20 mo ago | Funding Raised | Kelly Warbis Co-Founder / CEO | 2019 | — | — | — |
| 6 | AquaShield Provider of water treatment services | — | — | Acquired | — | 1999 | — | 7 patents Advanced stormwater filtration and gravitational separation technologies for portable water treatment | — |
| 7 | Aries Clean Technologies Provider of waste management services | — | — | Funding Raised | Gregory Bafalis CEO | 2010 | WordPressApple iCloud MailMicrosoft 365+31 | 34 patents Advanced waste gasification and biochar production with PFAS destruction and particle control | — |
| 8 | asr systems ASR Systems is a recycling company that recycles waste roofing shingles into raw materials. | — | — | Private | — | 2009 | — | — | — |
Top 5 Waste & Water Management companies in Tennessee
#1
Funding Raised · Cookeville, Tennessee · founded 2019$606.5Kraised▾
Provider of waste management solutions. It uses NovaDry technology, a non-thermal drying system that removes moisture from any solid waste feedstock and turns it into a carbon-negative fuel for clean power, cement, or sustainable fuels.
- Jan 2025Conventional Debt$400K
- Jul 2024Grant (prize money)$206.5K
#2
Series A · Memphis, Tennessee · founded 2018 · 7 employees$4.6Mraised▾
Waste water recycling company
- Jul 2023Grant (prize money)$174.7K
- Mar 2021Series A$2M
- May 2020Seed$1.8M
- Jun 2019Seed$800K
#3
Acquired · Cleveland, Tennessee · founded 1987 · 300 employees$75Mraised▾
Provider of waste collection and disposal services to domestic, commercial & industrial customers
- May 2019Conventional Debt$75M
- May 2019PE$75M
- Aug 2013Conventional Debt$65M
#4
Seed · Brentwood, Tennessee · founded 2007 · 6 employees$4.1Mraised▾
Manufacturer of asphalt-based products intended to be used for varied uses. The company recovers petroleum content from asphalt shingle waste with proprietary methods and technology by collecting, hauling and processing asphalt tear-off shingles, enabling people to get products from asphalt shingle.
- May 2013Seed$290K
- May 2013Conventional Debt—
- Jun 2012Seed$675K
- Jun 2012Conventional Debt—
#5
Acquired · Readyville, Tennessee · founded 2006 · 13 employees$2.4Mraised▾
Provider of greenroof and stormwater management services
- Aug 2017Seed$2.4M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Waste & Water Management coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
What Tennessee researches in water treatment
- Tennessee Technological University4
- Tennessee State University4
- University of Tennessee at Knoxville4
- East Tennessee State University3
- Tennessee Valley Authority2