About Milestone Environmental Services
Milestone Environmental Services is a company based in Houston (United States) founded in 1993, and was acquired by I Squared Capital in July 2026. Energy waste sequestration and carbon capture services are offered. The company has 161 employees.
Company details
Founded in 1993 and headquartered in Houston, United States, Milestone Environmental Services operates in the energy sector. Infrastructure solutions for permanent underground sequestration of hydrocarbon waste are provided, along with slurry injection and landfill disposal for various waste streams. Assistance is given to clients in offsetting indirect emissions to meet net-zero targets. Operations emphasize safety and regulatory compliance to prevent greenhouse gas emissions and environmental contamination.
- Headquarters Houston, United States
- Employees 161
- Stage Acquired
- Email••••••••
- Phone•••• ••••
- Website milestone-es.com
- Social LinkedIn X Facebook
- Acquired by SK Capital (Oct 2023)
- Latest Funding Round$45M (USD), Debt – Conventional
Feb 2022
- InvestorsI Squared Capital
& 5 more
- Employee Count161
- Acquired by
Funding Insights of Milestone Environmental Services
- Total Rounds 3
- Last Round Debt – Conventional — $45M
- Investors Count 4
All 3 funding rounds of Milestone Environmental Services with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Feb 2022 | $45M | Debt – Conventional | – | – | |
| Aug 2017 | Debt – Conventional | – | – | ||
| Nov 2014 | Private Equity Round | – | – |
6 investors in total: 6 institutional.
Investors in Milestone Environmental Services
Milestone Environmental Services has secured backing from 6 investors, including institutional and venture fund investors. Prominent investors backing the company include I Squared Capital, Stellar Bank and Gulf Capital Bank.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Amberjack Capital Partners is engaged in private equity investments. | 2006 | amberjackcapital.com | Houston, United States | |
A global private investment firm focused on specialty sectors. | skcapitalpartners.com | New York, United States | ||
Commercial banking services are offered in Texas communities. | 1926 | communitybankoftx.com | Beaumont, United States | |
Commercial bank | 2019 | gulfcapitalbank.com | Houston, United States | |
Asset management firm investing in energy, power, and infrastructure globally. | 2000 | riverstonellc.com | New York, United States | |
Investments are focused on infrastructure sectors like energy and transport. | 2012 | isquaredcapital.com | Miami, United States |
Investor details for Milestone Environmental Services
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of Milestone Environmental Services
29 people are tracked at Milestone Environmental Services (10 in leadership, 19 in team); the tracked headcount is 161.
| Name | Role | Group |
|---|---|---|
Jason Larchar | VP, Engineering | Leadership |
Gabriel J. Rio | President & CEO | Leadership |
Richard Leaper | VP, Sales & Marketing | Leadership |
Shaun Gee | VP, Business Development | Leadership |
Carolina Ortega | VP, Sustainability | Leadership |
Fernando Torres | VP Of Human Resources | Leadership |
Daniel Boone | Director Of Corporate Sales | Leadership |
Carolina Ortega Barrales | VP Of Sustainability And Communications | Leadership |
Katherine W. Strange | Chief Legal Officer | Leadership |
Christopher McDowell | Vice President Engineering Operations | Leadership |
Kevin Matte | SVP, Operations & HSE | Team |
Claudia Ruiz | Human Resources Administrator | Team |
Jake W. Richard | Project Manager/ Facilities Engineer | Team |
Msfe Holly Dutton | Senior Data Analyst | Team |
Karsha White | Corporate Development Adminstrator | Team |
Saul Moreno | Field Sales Representative - Delaware | Team |
Patricia Tinsley | Executive Assistant | Team |
Susan Mulloy | Learning And Development Manager | Team |
Jay Allison | External Affairs Manager | Team |
Margaret Daugherty | Regulatory Administrator | Team |
9 more people are available in the full profile.
Complete people profiles for Milestone Environmental Services
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of Milestone Environmental Services
5 dated milestones of Milestone Environmental Services across 33 years, from founding to its latest funding, stage changes and deals.
- Founded Milestone Environmental Services is founded.
- Funding First funding round.
- Funding Latest funding round, Debt – Conventional, of $45.0M.
- Exit Acquired by SK Capital.
- Exit Acquired by I Squared Capital.
Web traffic of Milestone Environmental Services
The website of Milestone Environmental Services (milestone-es.com) receives about 2.9K visits a month.
- Monthly visits2.9K
▼ 17.2% vs previous month
Websites whose visitors overlap most with Milestone Environmental Services. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| patriotenvironmental.com | 100% | 1.8K | #8,660,750 | View details |
Unlock complete access to The Company Check
Get unrestricted viewing across everything we track — from companies and brands to investors, funding rounds, acquisitions, financials, and more.
- Unlimited viewing on all profiles Companies, investors, financials, funding, acquisitions & directors
- Full access to every database India & global coverage, advanced filters and rich profile details
- Always-on access from your team account Single premium plan for everything you see on the portal
Frequently Asked Questions about Milestone Environmental Services
Milestone Environmental Services was founded in 1993 and raised its 1st funding round 21 years after it was founded.
Milestone Environmental Services is headquartered in Houston, United States. It is registered at Houston, Texas, United States.
Milestone Environmental Services has 161 employees.
Founded in 1993 and headquartered in Houston, United States, Milestone Environmental Services operates in the energy sector. Infrastructure solutions for permanent underground sequestration of hydrocarbon waste are provided, along with slurry injection and landfill disposal for various waste streams. Assistance is given to clients in offsetting indirect emissions to meet net-zero targets. Operations emphasize safety and regulatory compliance to prevent greenhouse gas emissions and environmental contamination.
Milestone Environmental Services has 6 investors. Key investors include I Squared Capital, Stellar Bank, Gulf Capital Bank, Riverstone Holdings, and Amberjack Capital Partners.
Yes. Milestone Environmental Services was acquired by SK Capital in October 2023.