Experience you can stand on.

Successfully investing in exceptional lower middle market businesses for 20+ years.

Value creation you can build on.

Expertise and capabilities to deliver tailored operational, technology, sales, and financial results.

Partnership you can count on.

Working shoulder-to-shoulder with entrepreneurs to facilitate success for all stakeholders.

Innovative AI you can rely on.

In-house AI transformation team to create lasting competitive advantages for any business.

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Positioning Exceptional Businesses for the Future.


Southfield brings decades of successful investing and value-creation expertise, shoulder-to-shoulder partnership, and differentiated experience to ensure our portfolio companies are future-ready. We are dedicated to elevating lower-middle-market businesses by providing institutionalized capabilities and processes, utilizing technology and a bespoke AI transformation playbook to redefine value creation for entrepreneurs and management teams.


True partnerships, real outcomes.

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years investing in exceptional lower middle market companies

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investments with entrepreneur-built organizations

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of capital raised, currently investing out of our flagship fund, Southfield Capital IV

INVESTMENT CRITERIA

What We Look For

Southfield partners with entrepreneur-built business services companies in the lower middle market. We look for exceptional companies operating in non-discretionary, mission-critical industries that have a pathway to achieve meaningful growth through the implementation of Southfield’s value-creation pillars.

$4-20MM

Target EBITDA


$20-125MM

Equity investment size


* No size parameters for add-on acquisitions


PE experience you can stand on.
Partnership you can count on.
 

Successfully investing alongside founders and management in the lower middle market since 2002.

Combining institutional capabilities and cutting-edge innovation with a founder's mindset and vision.
innovatiVE AI TRANSFORMATION

Significant in-house AI transformation expertise, via Contextual, to drive efficiencies, increased revenue, and new services across virtually any business.

Operational Excellence

Our dedicated team implements robust financial planning, data analytics, and operational infrastructure to drive scale and informed decision-making.

Driving Organic Growth

We bring hands-on expertise in sales, marketing, and revenue optimization to help you capture market share and accelerate top-line growth.

TRansaction identification & support

Proven processes for identifying, executing, and integrating strategic acquisitions.


< For Business Owners

OUR PEOPLE

Ethos of no egos, no silos, no pretense.

Hand-in-hand approach leads to faster decision-making, deeper trust and lasting, differentiated results.


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IN THE NEWS

Recent Headlines

southfield capital acquires Contextual.ai to provide value creation
January 26, 2026
AI-driven Full-Service Business Contextual.io Complements Southfield Capital's Mission to Enhance Value Creation for Founders and Manager-Owners
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January 7, 2026
GREENWICH, CT – Southfield Capital, a premier lower middle market private equity firm, announced today that Kelvin Group, (“Kelvin”), a leading national provider of industrial and commercial mission-critical mechanical refrigeration services, process safety management and environmental compliance, has completed the acquisition of PermaCold Engineering, Inc. (“PermaCold”), a premier industrial refrigeration company headquartered in the Pacific Northwest. The acquisition of PermaCold represents Kelvin’s fourteenth acquisition since partnering with Southfield. Founded more than 30 years ago by industry pioneers, Steve Jackson and Randy Cieloha, PermaCold has built a reputation for excellence, innovation and reliability in the industrial refrigeration industry. The company is widely recognized for its expertise in ammonia and CO2 refrigeration systems as well as its ability to deliver complex, high-performance solutions to clients across the western United States. The integration of PermaCold into Kelvin Group's family of companies, which features reputable brands such as ARC Mechanical, Refrigeration Design & Service (RD&S), RC&E, HCG Associates, and JS Compliance, further solidifies Kelvin's standing as a national provider of mission-critical mechanical services. “Kelvin’s acquisition of PermaCold represents an exciting milestone as the company continues its national expansion strategy by entering the Pacific Northwest. PermaCold’s deep technical expertise, admired technician team and customer service focus makes them a natural partner for Kelvin,” said Harry Gray, CEO of Kelvin Group. “Together, we look forward to offering an enhanced set of capabilities to support our combined customer base.” “When we decided to sell, Randy and I were adamant in locating an organization that shares our company’s culture and values relating to customers and employees, and Kelvin more than achieved this goal,” said Steve Jackson, “We’re excited to leverage Kelvin’s national footprint to better serve our customers while staying true to the values that have guided us for more than 30 years.” Southfield Partner, Chris Grambling, commented on the transaction, "We are delighted to welcome the PermaCold team to the Kelvin family. PermaCold has built a phenomenal reputation in the Pacific Northwest and their addition bolsters Kelvin’s geographic coverage, establishing Kelvin as a coast-to-coast mechanical services provider." Deerpath Capital Management and Crescent Capital provided debt financing. G2 Capital Advisors served as the buy-side advisor to Kelvin. Finn, Dixon & Herling provided legal counsel to Kelvin and Southfield Capital. About Kelvin Group Kelvin Group is a national leader in the field of industrial and commercial mission-critical mechanical services, process safety management and environmental compliance. Its turnkey solutions provide design/installation, service and planned maintenance and testing and compliance of world-class mechanical systems for leaders in the food and beverage, cold storage, pharmaceutical, educational, health care, and process industries. Once engaged with customers, Kelvin assists business owners achieve mandated health, safety, environmental and regulatory compliance standards. For more information, please visit www.kelvin.cool . About Southfield Capital Southfield Capital is a private equity firm that invests in high-growth, lower middle market companies in the business services sector. The firm targets companies with $4 - 20 million in EBITDA and partners with management to scale the business through a combination of organic and acquisition growth strategies. For more information, please visit www.southfieldcapital.com .

Operational Excellence 

Build structure that scales. 

Leadership Depth

Build teams that can go the distance.

Strategic M&A

Build through thoughtful acquisition.

Technology & AI Enablement 

Build with better information.

A better way to build strong companies. 

Experience that strengthens everything you've built

Southfield’s partners have worked together for 16+ years on average
rare consistency in private equity. 


And that consistency creates: 

  • Shared judgment 
  • Deep trust 
  • Proven playbooks 
  • Pattern recognition you can count on 
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We bring the right expertise into the room at the right moment: 

  • Commercial leaders 
  • Operational specialists 
  • Technology & AI partners 
  • Talent strategists 
  • M&A experts 


We’re hands-on enough to help. Experienced enough to guide. Humble enough to collaborate.