Amberjack Capital Partners
Amberjack Capital Partners is a Houston-based, employee-owned private equity firm that invests in founder-led, lower middle-market companies (typically $5-25M EBITDA) in critical infrastructure, industrial, and environmental services, deploying capital as the first institutional partner.
- Company typePrivate
- Founded2006
- HeadquartersHouston, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Amberjack Capital Partners does
Amberjack Capital Partners is a Houston-based, employee-owned private equity firm founded in 2006 (originally as Intervale Capital and rebranded in May 2021) that invests in lower middle-market companies generating $5-25 million of EBITDA in the critical infrastructure services and industrial end markets. The firm operates a sector-specialist, operations-driven investment model, partnering with founder-led businesses as their first institutional capital provider and working alongside management teams to scale operations, pursue strategic acquisitions, and expand geographic reach.
The firm generates revenue through traditional private equity fund management economics, earning management fees on committed capital deployed across portfolio companies plus carried interest on realizations. As of the latest disclosed data, the firm has raised $2.1 billion in committed capital since inception and invested in over 50 companies, with current portfolio companies spanning oilfield services (Innovex, Taurex Drill Bits, Rod & Tubing Services, Aegis Chemical Solutions), energy production (EnerCorp, Tier 1 Energy Solutions), power generation (FlexEnergy Solutions), industrial heat treating (Industrial Thermal Services), and environmental and waste services (CIMA Services). Recent realized investments include Entegra (pipeline inspection, exited 2025), Best Trash (municipal waste, exited 2024), and Milestone Environmental Services (exited 2023).
The go-to-market model is relationship-driven, relying on direct outreach to founder-led businesses, intermediary referrals, and Gulf Coast industry relationships rather than competitive auctions. The investment team is supported by a complementary operating-partner bench (including a former portfolio company CFO) and is led by Managing Partner Jason Turowsky following the 2024 passing of Co-Managing Partner Patrick Connelly. The firm maintains an SEC-registered investment advisor structure and operates from a single headquarters in Houston, Texas.
Amberjack Capital Partners firmographics
Firmographics- Name
- Amberjack Capital Partners
- Legal name
- Amberjack Capital Partners, L.P.
- Website
- https://amberjackcapital.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Amberjack Capital Partners is a Houston-based, employee-owned private equity firm that invests in founder-led, lower middle-market companies (typically $5-25M EBITDA) in critical infrastructure, industrial, and environmental services, deploying capital as the first institutional partner.
- Ownership category
- akta.pro rank
Amberjack Capital Partners industry classification
Industry- Product category
- Private Equity Investment Management
- NAICS
- Portfolio Management and Investment Advice (52394), Other Investment Pools and Funds (5259)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Technology & Software Growth Equity (FSANACAA)
Keywords
Where Amberjack Capital Partners is headquartered
LocationHeadquarters
- HQ city
- Houston
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Amberjack Capital Partners business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Private Equity Fund Management: Amberjack Capital generates revenue through management fees and carried interest (performance fees) from managing private equity funds focused on critical infrastructure services. The firm raises capital from institutional investors and deploys it into portfolio companies, earning returns through operational improvements and eventual exits.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Amberjack Capital Partners product offering
Product offeringCore offering
Amberjack Capital Partners is a Houston-based, operations-driven, lower middle-market private equity firm that invests in critical infrastructure services and industrial end markets. The firm partners with founder-led businesses typically generating $5-25 million in EBITDA, providing growth capital, strategic guidance, and operational resources to build durable market-leading companies. Revenue is earned through management fees and carried interest on privately offered investment funds.
Product overview
Amberjack Capital Partners is a private equity firm, not a product company. As an investment firm, it does not offer products or services in the traditional sense. The firm specializes in critical infrastructure services, investing in portfolio companies that provide industrial, infrastructure, and environmental services. Active portfolio companies include CIMA Services (waste management and environmental remediation), Industrial Thermal Services (heat treating and specialty mechanical services), Aegis Chemical Solutions, EnerCorp (well flow management), Flex Energy Solutions (gas turbine power), Innovex (downhole products for energy), Rod & Tubing Services, Taurex Drill Bits, and Tier 1 Energy Solutions (completions and production products). Realized investments include Best Trash, Entegra, Milestone Environmental Services, TorcSill Foundations, and Transform Materials.
Differentiator
Problem solved
Functional benefit
Companies that use Amberjack Capital Partners
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles1 record
Amberjack Capital Partners technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Amberjack Capital Partners partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered legal_counsel, strategic, major_exit, portfolio and realized.
- Sidley Austin LLPlegal_counselSidley Austin LLP served as legal counsel to Amberjack for the CIMA Services partnership.
- Grafine PartnersstrategicGrafine Partners announced a strategic partnership with Amberjack Capital Partners on October 15, 2025. The partnership aims to enhance Amberjack's growth in the infrastructure and industrial services sectors, leveraging Grafine's expertise and network.
- NDT Globalmajor_exitAmberjack successfully exited Entegra through its sale to NDT Global. Entegra is a premium integrity and inspection company specializing in Ultra-High-Resolution Magnetic Flux Leakage (UHR MFL) in-line pipeline inspection services. NDT Global is a leading provider of advanced diagnostic inspection and integrity solutions for the energy sector.
- Enterprise Group, Inc.strategicFlexEnergy Solutions completed the sale of its Canadian operations (Flex Leasing Power and Service ULC) to Enterprise Group, Inc. The acquisition provides Enterprise with exclusive supply rights for FlexEnergy's turbines in Canada.
- FlexEnergy SolutionsportfolioFlexEnergy Solutions is a portfolio company of Amberjack Capital Partners providing reliable, clean, on-demand power solutions through gas turbine technology.
- EntegrarealizedEntegra is a realized portfolio company of Amberjack Capital Partners. It was a leading provider of pipeline inspection products and services specializing in Ultra-High-Resolution Magnetic Flux Leakage (UHR MFL) in-line pipeline inspection services.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Amberjack Capital Partners competitors and assessment
Company assessmentDirect peers
- White Deer Energy: Houston-based middle-market private equity firm investing in energy and industrial services companies. Highly comparable to Amberjack in geography, sector focus (energy services / industrial), and lower middle-market check size; previously acquired TorcSill Foundations from Intervale/Amberjack.
- Wynnchurch Capital: Lower middle-market private equity firm investing in industrial services, infrastructure services, and business services. Directly comparable in target company EBITDA range, operations-driven value creation playbook, and focus on founder/family-owned businesses.
- Trive Capital: Lower middle-market PE firm headquartered in Dallas focused on industrial, infrastructure, and specialty distribution. Comparable in fund size, target company profile ($5-25M EBITDA industrial/infrastructure businesses), and sector overlap with Amberjack's portfolio.
- Comvest Partners: Middle-market private investment firm focused on business services, industrial, and infrastructure services. Directly comparable to Amberjack in target EBITDA range, sector focus, and operations-driven approach to lower middle-market industrial companies.
- Sentinel Capital Partners: Lower middle-market PE firm focused on industrial, business services, and healthcare. Directly comparable in target EBITDA range, operations orientation, and focus on founder/family-owned businesses in industrial end markets.
- Audax Group: Private investment firm executing buy-and-build strategies in lower middle-market industrial, business services, and healthcare companies. Comparable in thesis of building platforms through add-on M&A in industrial/infrastructure services.
- Olympus Partners: Middle-market PE firm investing in business services, industrial, and consumer. Comparable in lower middle-market industrial services focus and operations-driven value creation model.
Broad incumbents
- SK Capital Partners: Private investment firm focused on specialty materials, chemicals, and life sciences. Comparable as a fund manager that acquires industrial-services-adjacent businesses from PE sponsors (acquired Milestone Environmental Services from Amberjack in 2023); larger AUM and broader sector mandate than Amberjack.
- Stonepeak Partners: Infrastructure-focused private investment firm with significant AUM. Comparable as infrastructure-services-adjacent investor with industrial focus, but operates at significantly larger scale and broader infrastructure mandate than Amberjack's lower middle-market focus.
- Energy Capital Partners: Private investment firm focused on power generation, energy infrastructure, and environmental services. Comparable in energy and infrastructure services sector overlap, but operates at materially larger scale and broader mandate than Amberjack.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Amberjack Capital Partners social profiles
Digital presenceAmberjack Capital Partners financial estimates
Financial estimateRevenue estimate
Valuation estimate
Amberjack Capital Partners leadership team
Management profileNumber of profiles
Profiles9 records
Amberjack Capital Partners subsidiaries and ownership
Company hierarchySubsidiaries9 records
Amberjack Capital Partners funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Amberjack Capital Partners M&A and investment
M&A and investmentM&A6 records
Investments12 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Amberjack Capital Partners
What does Amberjack Capital Partners do?
Amberjack Capital Partners is a Houston-based, operations-driven, lower middle-market private equity firm that invests in critical infrastructure services and industrial end markets. The firm partners with founder-led businesses typically generating $5-25 million in EBITDA, providing growth capital, strategic guidance, and operational resources to build durable market-leading companies. Revenue is earned through management fees and carried interest on privately offered investment funds.
Is Amberjack Capital Partners a public or private company?
Amberjack Capital Partners is a private company. It is classified as management employee owned and is currently operating.
When was Amberjack Capital Partners founded?
Amberjack Capital Partners was founded in 2006. It employs 11 to 50 people.
Where is Amberjack Capital Partners based?
Amberjack Capital Partners is headquartered in Houston, United States, in the North America region.
How does Amberjack Capital Partners make money?
One revenue line is on record: private Equity Fund Management.
Who are Amberjack Capital Partners's main competitors?
Direct peers on record are White Deer Energy, Wynnchurch Capital, Trive Capital, Comvest Partners, Sentinel Capital Partners, Audax Group and Olympus Partners. Broad incumbents are SK Capital Partners, Stonepeak Partners and Energy Capital Partners.
Does Amberjack Capital Partners have an API?
No public API is recorded for Amberjack Capital Partners.
What industry is Amberjack Capital Partners in?
Amberjack Capital Partners's product category is Private Equity Investment Management. Its primary akta.pro industry code is FSANACAA, Technology & Software Growth Equity. Its NAICS code is 52394 and its SIC code is 6282.