Sterling Investment Partners

Sterling Investment Partners is a private equity firm established in 1991 and located in Westport, Connecticut. It specializes in acquiring and consolidating middle-market companies, focusing on sectors such as outsourcing and business services, niche manufacturing, transportation and logistics, and retail. Sterling aims to invest between $30 million and $150 million in companies with revenues ranging from $50 million to over $500 million, enterprise values between $100 million and $400 million, and EBITDA between $10 million and over $50 million. The firm employs a long-term investment strategy, working collaboratively with management teams to accelerate growth and enhance operational capabilities. With a history of over 25 platform investments and more than 50 add-on acquisitions, Sterling Investment Partners demonstrates a commitment to fostering growth in companies with strong competitive positions and promising prospects.

Michael Barr

Partner

William Macey

Co-Founder and Managing Partner

Douglas Newhouse

Co-Founder and Managing Partner

Charles Santoro

Co-Founder and Managing Partner

35 past transactions

PROtect

Acquisition in 2024
PROtect, formed by the merger of ERI Solutions and DBI Inc., is a company specializing in non-destructive testing, safety, industrial hygiene, environmental services, and insurance program management. Established in 2007 and headquartered in Colwich, Kansas, PROtect serves over 200 clients in various sectors, including biofuels, agribusiness, manufacturing, petrochemical, construction, and distribution. The company’s services, many of which are federally mandated, help clients mitigate business risks and ensure compliance with regulations. PROtect focuses on providing advanced and conventional non-destructive testing (NDT), mechanical integrity assessments, and health and process safety solutions, enabling its clients to effectively manage risks associated with employee safety and property damage.

Verdantas

Acquisition in 2024
Verdantas is a consulting firm that specializes in addressing complex challenges related to the natural and built environments. The company serves a diverse clientele, including commercial and industrial sectors, oil and gas firms, public utilities, and government agencies. Verdantas offers a comprehensive range of services, such as site assessment and remediation, brownfield redevelopment, waste management, and infrastructure design. By providing targeted support tailored to their clients' specific needs, Verdantas aims to foster sustainable solutions while prioritizing the well-being of clients and communities. The firm also emphasizes a culture of inclusion, diversity, and collaboration, encouraging employees to maintain a healthy work-life balance and pursue career growth.

Banner Industries

Private Equity Round in 2023
Banner Industries provides cleanroom consumables, filtration, purification, fittings, flow control, heaters, metrology, o-rings, seals, pressure measurement, pumps, regulators, temperature control, tube, pipe, hose, valves, and welding.

Camp Construction Services

Acquisition in 2021
Camp Construction Services is a full service general contractor in the multi-family industry.

AIMS Companies

Acquisition in 2020
AIMS is a national provider of infrastructure inspection, maintenance, and support services to the municipal, utility, industrial, and energy end-markets. The company's complementary services, including (i) pipe inspection & cleaning, (ii) hydroexcavation, and (iii) vacuum and hydroblast cleaning, are critical to its customers' ability to maintain operational workflow and regulatory compliance. AIMS operates 15 branches across the U.S. which are strategically positioned in regions of high demand in the West, Southwest, and Southeast. The company's cross-trained workforce, expansive fleet of over 400 units, and company-wide culture of safety and performance have enabled AIMS to become a trusted partner to its premier customer base.

HeartLand

Acquisition in 2019
HeartLand is a progressive organization specializing in commercial landscaping services across the Central United States. The company focuses on building strong relationships and providing exceptional service through its network of leading landscape firms in the Midwest and Mountain West. HeartLand offers a comprehensive range of full-service maintenance solutions, including mowing, pruning, fertilization, irrigation, and bed maintenance, as well as landscape enhancements such as property upgrades and renovations. Additionally, it provides seasonal services like de-icing and snow removal. By emphasizing a shared vision of excellence and continuous training and support, HeartLand aims to be the preferred choice for both employees and clients in the markets it serves.

Marcone Supply

Private Equity Round in 2019
Marcone Supply is a logistics company that offers appliance parts.

Belnick

Acquisition in 2017
Belnick Incorporated in an internet based retailer of office chairs, office furniture, church furniture, school furniture, home furniture and medical furniture. It was one of the first online-only office furniture retailers.

Power Stop

Acquisition in 2015
Power Stop, LLC is an automotive company based in Bedford Park, Illinois, that specializes in manufacturing and distributing braking systems for various vehicles, including cars, trucks, SUVs, and performance vehicles. Founded in 1997, the company offers a comprehensive range of products such as brake kits, caliper kits, brake pads, rotors, calipers, brake shoes, and pad wear sensors. Power Stop is known for its 1-Click Brake Kit, which consolidates all necessary components for replacing front and rear brakes, catering to both DIY and professional installers. The company's products are distributed through a network of retailers across Europe, North America, South America, the Middle East, and Africa, as well as through online platforms.

Lipari Foods

Acquisition in 2014
Lipari Foods, LLC is a food product distributor based in Warren, Michigan, serving the United States market since its founding in 1963. The company specializes in a diverse range of categories, including bakery, dairy, deli, meat, seafood, confections, and specialty grocery items. Lipari Foods also manufactures various products such as fresh sandwiches, nut roasting items, trail mixes, gourmet popcorn, and peanut brittles. In addition to distribution, the company provides repacking, labeling, and custom manufacturing services. Its clientele includes supermarkets, convenience stores, and foodservice establishments, allowing Lipari Foods to offer a broad selection of on-trend and specialty products at competitive prices.

RebelMouse

Series A in 2013
RebelMouse is the first digital publishing platform that is fully wired for social. Its solution enables brands, media companies and individuals to create vibrant content experiences that build communities and continually reach and grow audiences across the social web. Unlike conventional approaches that focus on managing content workflows within specific channels, RebelMouse liberates content across sites, social, apps and ads, and amplifies engagement with intelligent recommendations, social calls to action, real-time trending alerts and more. Founded in 2012 by former Huffington Post CTO Andrea Breanna, RebelMouse's modern approach to traffic helped create huge online hits like Axios and The Dodo, while also relaunching existing publishers like PAPER Magazine and helping them "Break the Internet." RebelMouse also helps brands who want to act more like a media company, including helping United Airlines Hub become the most popular airline blog. For more information, visit rebelmouse.com and follow RebelMouse on Twitter at @rebelmouse.

Service Logic

Acquisition in 2012
Service Logic is one of the largest privately held Energy and HVAC/Mechanical Services companies in the United States. Committed to long-term client relationships, our 1500+ employees service over 100,000,000 square feet of commercial, industrial and institutional real estate utilizing 33 offices covering 25 states. We are a leading provider of integrated services that optimize energy efficiency, comfort, productivity, health and safety. Our investment in local entrepreneurs, technology and education has created the next generation service platform for our clients and associates. We are reducing costs while increasing the value of real estate assets.

Excelligence Learning Corporation

Acquisition in 2011
Excelligence Learning is a developer, manufacturer, distributor, and multi-channel retailer of over 20,000 innovative, high-quality and grade-appropriate educational products and teaching solutions, which are sold primarily to early childhood learning centers, elementary schools, PTAs, and consumers. The company has three core divisions: Supplies (Discount School Supply, Really Good Stuff, SmarterKids, and Environments), Equipment (Children's Factory, Angeles and Steffy Wood Products), and Services (Educational Products, Inc., ChildCare Education Institute). With over 30 years of experience serving children, educators and parents, Excelligence's diversified portfolio of leading brands delivers quality, innovation, service and value on a global scale. Leading proprietary brands include: Colorations, BioColor, and Excellerations.

Survey Sampling international

Acquisition in 2011
Celebrating 40 years in business, SSI <http://www.surveysampling.com/> is the premier global provider of data solutions and technology for consumer and business-to-business survey research. SSI reaches participants in 90+ sample countries via internet, telephone, mobile/wireless and mixed-access offerings. SSI staff operates from 40 offices and remote staff in over 20 countries, offering sample, data collection, CATI, questionnaire design consultation, programming and hosting, online custom reporting and data processing. SSI's employees serve more than 3,500 customers worldwide.

Lazer Spot

Acquisition in 2010
Lazer Spot is the industry leader in third-party yard management services. Spotting and local shuttles are our core business, not an auxiliary function. A choice to work with Lazer Spot means that you get our full attention, our years of experience, and their commitment to customer satisfaction. You will not find another company that works harder or understands better how to make your facility function more efficiently.

FCX Performance

Acquisition in 2008
FCX Performance, Inc. is a distributor of process flow control solutions and products serving various industries across the United States, including alternative energy, food and beverage, pharmaceuticals, and chemical processing. Founded in 1999 and based in Columbus, Ohio, the company offers a comprehensive range of products such as valves, actuators, solenoid valves, flow meters, pressure devices, and temperature measurement instruments. Additionally, FCX provides stream and process heating products, safety relief products, and purity products, along with value-added services like engineered systems, hose fabrication, and valve automation. The company also specializes in control systems design and integration, catering to original equipment manufacturers and engineering firms. As a subsidiary of Applied Industrial Technologies, FCX Performance combines extensive industry expertise with a dedication to helping clients navigate the complexities of production and manufacturing.

Miller Heiman Group

Acquisition in 2008
Miller Heiman Group is a prominent provider of training, consulting, research, and technology services, drawing from over 150 years of industry experience. The company focuses on enhancing the effectiveness of sales organizations through its comprehensive offerings, known as Be Ready Solutions. These solutions incorporate well-established products and services, alongside innovative tools designed to analyze performance gaps and prioritize improvement initiatives. By integrating best practices and insights from the sales and service sectors, Miller Heiman Group aims to equip clients with the resources needed to optimize their sales processes and achieve sustainable growth.

Fairway Group Holdings

Acquisition in 2007
Fairway Group Holdings, operating under the name Old Market Group Holdings, is a food retailer based in the United States, specializing in fresh, natural, and organic products. The company offers a diverse array of items, including fresh produce, deli products, specialty and gourmet foods, cheese, meat, seafood, and bakery goods. Its product range extends to natural and organic foods such as fruits and vegetables, organic meats, health supplements, and various grocery items, including gluten-free products and baby care essentials. In addition to perishable goods, Fairway also provides a selection of conventional groceries, specialty foods, and wines and spirits. The company operates 15 locations across New York, New Jersey, and Connecticut, including four dedicated to wines and spirits. Founded in 1933 and headquartered in New York, Fairway Group Holdings filed for Chapter 11 reorganization in January 2020.

Cambridge International

Acquisition in 2006
Cambridge International, Inc. specializes in designing and manufacturing woven metal products for a variety of industrial, architectural, and environmental applications. Its product range includes metal conveyor belts, filtration systems, and custom mesh solutions, catering primarily to the food processing sector, as well as packaging and filtration markets. The company operates multiple manufacturing plants across the United States and has facilities in Mexico, Brazil, and Australia, enabling it to serve a diverse clientele in industries such as agriculture, automotive, electronics, and pharmaceuticals. Cambridge International also offers services such as belt installation, conveyor system evaluation, and engineering support. Founded in 1911 and based in Cambridge, Maryland, the company has established itself as a leading supplier of metal conveying solutions globally.

GPX International Tire

Private Equity Round in 2005
GPX International Tire designs, manufactures, and sells tires. The Company offers pneumatic and solid tires, as well as radial wheels.

USM

Private Equity Round in 2005
USM is a facilities maintenance, HVAC/electrical services, and sustainable energy solutions company that provides services nationwide with offices in Pennsylvania and New York. Contact us today for information on complete integrated facility services, electrical contracting, building compliance, and more.

The CBORD Group

Acquisition in 2004
The CBORD Group, Inc. provides clinical nutrition and foodservice software for healthcare and senior living facilities.

Community Research Associates

Venture Round in 2004
Community Research Associates is a provider of domestic preparation services.

USM

Acquisition in 2003
USM is a facilities maintenance, HVAC/electrical services, and sustainable energy solutions company that provides services nationwide with offices in Pennsylvania and New York. Contact us today for information on complete integrated facility services, electrical contracting, building compliance, and more.

U. S. Shipping Partners

Acquisition in 2002
U.S. Shipping Corp provides long-haul marine transportation services, principally for refined petroleum products and chemical cargoes. They also provide coastwise transportation of petrochemical and commodity chemical products.

Kenan Advantage Group

Acquisition in 2001
Kenan Advantage Group is a leading provider of tank truck transportation and logistics services, specializing in the delivery of fuel, chemicals, industrial gases, specialty products, and food products. The company serves a diverse clientele, including oil companies, truck stop chains, convenience stores, hypermarkets, and aviation fuel marketers, as well as other national and regional petroleum marketers. Operating across the continental United States, Canada, and Mexico, Kenan Advantage Group plays a critical role in facilitating the distribution of energy resources, ensuring efficient and reliable transport solutions for clients in the energy sector.

McArthurGlen Designer Outlets

Acquisition in 1995
McArthurGlen Designer Outlets developer and manager of numerous designer outlets across Europe.

American Buildings Company

Acquisition in 1993
American Buildings Company, based in Swansea, South Carolina, is a manufacturer of custom metal systems. As a subsidiary of Nucor, the largest steel manufacturer and recycler in the United States, ABC specializes in providing a range of products that include framing, roof and wall panel systems, and insulated metal panels. The company also offers various panel colors, insulation systems, prismatic skylights, steel mezzanines, overhead doors, and additional accessories and components. By focusing on high-quality metal solutions, American Buildings Company serves diverse construction needs while leveraging its connection to a leading steel producer.

Aavid Thermalloy

Acquisition in 1993
Aavid, founded in 1964 and headquartered in Laconia, New Hampshire, through its global network of manufacturing and design centers, provides a broad range of technologically advanced thermal management solutions for telecommunication, LED lighting, server, data center, consumer electronics, transportation, and industrial applications to customers all over the world. Aavid is a portfolio company of Audax Group, a leading investor in middle market companies, which has over $9 billion in assets under management across its Private Equity, Mezzanine, and Senior Debt businesses.
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