About us

Since 1984, Sealco has set the standard as the leader in cost-saving solutions for critical environments. We specialize in products and services that maximize efficiency and cost effectiveness. We offer results that are immediate, measurable and green.

Working with Sealco

Up to 3 million sq. ft. Critical environments serviced per month
70% Repeat customers
37 states and 3 countries Where we've worked
8+ years Average tenure of employees

Since 1984, Sealco has set the standard as the leader in cost-saving solutions for critical environments.

Our experienced data center technicians use best-in-class products and act as trusted partners to implement cleaning and cooling efficiency solutions.

Sealco standards

Sealco standards
When you work with us, you can count on:

At Sealco, we only employ permanent employees and boast an average tenure of eight years. These full-time, background-checked technicians undergo rigorous preparation in our critical environment training facility. And our clients, Fortune 1000 companies among them, repeatedly ask for our employees by name.

Our state-of-the-art equipment is designed explicitly for your critical environment. The solutions we offer, from modular colocation suite walls to remarkably efficient ColdLogik rear door coolers, are unsurpassed on the market — and they’re always the best products for your budget.

Sealco technicians clean nearly 3 million square feet of critical environments per month, and use proprietary processes developed over 30 years in the industry. They execute installations and services correctly the first time, every time. These proven procedures, combined with best-in-class products, provides our customers with unrivaled quality.

We’re not just your product supplier. We’re here to build a relationship and become a trusted member of your team — just ask our repeat customers, which make up 70% of our client base. Our representatives build out projects with customers in mind, helping to reduce capital expenditures, maintain budgets and timelines and achieve an energy efficient, safe and tour-ready facility.

Our history

When Ron Miglini founded Sealco in 1984, he saw an unmet need in data centers. Expensive computer room equipment required cleaning with specialized supplies and procedures to protect both the data and the equipment itself.

So Ron began coordinating data center cleaning services out of his home. He worked alongside just two other employees; one for operations, one for admin tasks. With this small-but-nimble team, the company’s early days were spent cleaning computer rooms with sprawling mainframes and other large pieces of equipment such as DASDs and Tape Silos.

As the industry has evolved over the decades and moved from giant mainframes to server racks, Sealco’s commitment to protect data center equipment has remained the same. In addition to our cleaning services, we were among the first to provide containment technology for data centers.

Our reach of service has grown, too, with expansions to Houston in 1990 and Atlanta in 2012. Our most recent expansion into Phoenix in 2019 has taken our reach even further. As of today, we serve data centers in 37 states and 3 countries.

From air flow efficiency developments to hyperscale projects, we’ve helped data centers across the country stay clean, cool and efficient. And just as we were on the cutting edge of containment technology, we’re pushing the industry forward with the remarkably efficient ColdLogik rear door coolers.

We’ve helped data centers stay clean, cool and tour-ready for 35 years. And as data centers continue to advance, so will our approach to industry-best cleaning and cooling technologies.

Meet our partners

Wright Line
Synapsense
Tate Airflow
Upsite Technologies
Simplex Isolation Systems
PlenaForm
Eaton

Meet our team

Eddie Dulaney

Eddie Dulaney

Executive Vice President

Eddie has spent his professional career selling and servicing data center environmental monitoring systems and computer room services. Since coming to Sealco in 1992, Eddie has played an integral part in the growth of Sealco and is currently the Executive Vice President and General Manager overseeing sales and operations. Eddie is an active member in professional organizations such as 7×24 Exchange and AFCOM. Through his industry knowledge, leadership skills and commitment to building strong relationships, Eddie ensures the needs of clients are exceeded. He is equally committed to providing Sealco employees with a safe, healthy work environment where they can continue to grow and develop in their careers.

Eddie is originally from Tulsa, Oklahoma and still considers it home away from home. He resides in McKinney, Texas with his wife Lara, son Brock and daughter Danielle. Eddie is an avid golfer and is always up for a round!

Chris VanAntwerp

Chris VanAntwerp

Vice President

Chris has been a member of the Sealco management team since October 2007, serving as the Director of Operations until his promotion to Vice President, Operations in 2015. He leads a team of operations staff and safety managers and supervises over 100 full- and part-time field technicians. Chris is responsible for all initial and maintenance cleaning contracts, ensuring the necessary tools, equipment and resources are available to meet the needs of the client. His straightforward, honest and professional demeanor allows him to build strong relationships with end customers.

Chris is originally from New York City and now resides in Arlington, Texas with his wife and children. He is an avid bowler and enjoys competing in local tournaments during his spare time.

Russ McAnulty

Russ McAnulty

Vice President of Sales

Russ joined the Sealco team in May 2006 as an Account Manager and until 2016, he helped his customers with their critical environment cleaning needs. From data center construction cleaning to all manner of ongoing maintenance cleaning, Russ determined the best solution to fit each customer’s desired scope and budget. In addition, he worked closely with Sealco’s AirSeal Division and helped his customers increase energy efficiency by offering custom, designed containment solutions to better manage airflow. In 2017, Russ became the Vice President of Sales, where he leads and supports the sales team for each of Sealco’s three divisions of service: Critical Cleaning, AirSeal and Products.

Russ is actively involved in a number of data center networking and educational organizations such as AFCOM and 7×24 Exchange. He is originally from Asheville, North Carolina and now resides in Dallas, Texas with his wife Chrissie, daughter Margaret and son Heys. In his free time, Russ likes to go golfing, play tennis, watch movies and listen to a variety of podcasts and books online.

Emir Besic

Emir Besic

Co-founder of AirSeal

Emir has been a member of the Sealco family since migrating to America in 1999. In 2008, he became the co-founder of AirSeal, Sealco’s airflow optimization division, which has been reducing energy costs and driving mechanical efficiencies for customers ever since. Additionally, Emir also handles the engineering, furnishing, purchasing and installation of energy conservation products and services.

Kevin McCormack

Kevin McCormack

Account Manager

Kevin joined the Sealco team in January of 2018 as an Account Manager after starting his career in SaaS sales. He now focuses on managing Sealco’s maintenance cleaning contracts, along with overseeing the company marketing functions. After growing up in the Catskill Mountains of New York, Kevin attended SUNY Oneonta and obtained a bachelor’s degree in communication studies. He prides himself on his responsiveness, attention to detail and ability to keep things simple for customers.

Marchell Stefan

Marchell Stefan

Southwest Division Manager

Marchell joined Sealco as the Southwest Division Manager in 2019. Marchell is an experienced strategic business development manager with 18 years of significant experience in enterprise and Fortune 500 sales. She is a decisive team leader and business manager with excellent attention to detail. Her transparent communication style and ability to develop complex proposals helps the Sealco team achieve win/win solutions for customers.

Natasha Spawn

Natasha Spawn

Account Manager

Natasha joined Sealco in February of 2017. As an Account Manager for Sealco she covers the Dallas-Fort Worth area, the surrounding area and the Midwest, too. Before starting at Sealco, Natasha worked in the medical, radio and banking fields. She has an associate degree in nursing from University of North Florida. Her customers are very important to her — she may work for Sealco, but when it comes to her customers, she works diligently to make sure all of their critical environment needs are met.

Sam Perkins

Sam Perkins

Account Manager/ Houston Office Manager

Samantha joined Sealco in 2013 and runs the Sealco Houston office. Her coverage includes all of southern Texas, College Station, Austin, San Antonio and other surrounding areas. Samantha started off on the operations side and spent time working as an Account Manager as well. Samantha has a bachelor’s degree in psychology with a minor in criminal justice and an associate degree in CAD. She continues to play a role within the operations team by overseeing the day-to-day of the office along with managing her accounts. She brings an outgoing nature and great customer service skills to the team, and has developed and maintained many customer relationships during her time with Sealco.

Sheila Desso-McCoy

Sheila Desso-McCoy

Products Specialist

Sheila is the Products Specialist for Sealco and oversees the Products Division at the corporate headquarters in Dallas. Over the last 12 years, she has provided consultative product solutions for critical environment clients, helping minimize airflow inefficiencies while providing significant cost savings. Sheila holds a bachelor’s degree in business administration from Southwest Texas State University (Texas State). When she isn’t immersed in all things data center products, she enjoys spending time at home with her husband, Mike, and fur baby, Karma.

Tyler Watterson

Tyler Watterson

Account Manager

Tyler joined Sealco in July of 2017 as a Sales Coordinator and Account Manager. Prior to joining Sealco, his experience was primarily in outbound sales, first as an independent representative for a specialty flooring manufacturer and then as a sales rep for a property management software company. Tyler attended the University of Arizona and earned a bachelor’s degree in economics in 2014.

The exponential growth of the data center market, both within Dallas-Fort Worth and around the country, has given him the opportunity to work with a number of large general contractors and grow his knowledge of the construction process. With years of service industry experience under his belt during and after college, customer service continues to be the primary focus of Tyler’s daily workload.

Tom Polizzi

Tom Polizzi

Southeast Division Manager

Thomas joined Sealco as the Southeast Division Manager in May of 2018. Prior to joining Sealco, he managed engineering and sales organizations for a number of technology companies and oversaw the creation of multiple data centers. He has an undergraduate engineering degree from Purdue University and a Master of Business Administration from Brenau University. Sealco was founded on the principal that keeping customers satisfied is the best way to run a business, and Thomas strives to continue this philosophy today.

Eddie Dulaney
Eddie Dulaney
Executive Vice President
Chris VanAntwerp
Chris VanAntwerp
Vice President
Russ McAnulty
Russ McAnulty
Vice President of Sales
Emir Besic
Emir Besic
Co-founder of AirSeal
Kevin McCormack
Kevin McCormack
Account Manager
Marchell Stefan
Marchell Stefan
Southwest Division Manager
Natasha Spawn
Natasha Spawn
Account Manager
Sam Perkins
Sam Perkins
Account Manager/ Houston Office Manager
Sheila Desso-McCoy
Sheila Desso-McCoy
Products Specialist
Tyler Watterson
Tyler Watterson
Account Manager
Tom Polizzi
Tom Polizzi
Southeast Division Manager