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About Our Sales Personnel & Customer Service

Your go to guy

Life is made easier with our one point of contact process.  When you work with SFI, you get to know the Regional Manager assigned to your geographical area.  He will take you through your tank project from concept to completion, each and every time.

SFI Sales Department

Not your typical sales team, our Regional Managers are your solution providers.  They have the technical knowledge and decision-making power to keep your project moving from order placement through engineering, production and delivery.

With one point of contact for everything, your time isn’t spent tracking down answers, which allows you to focus on your own work!

Regional Manager Responsibilities

  • Customer’s main contact
  • Reviewing specs, looking for the best solution to customer needs
  • Estimating projects
  • Creating formal proposals
  • Offering alternatives
  • Negotiations
  • Processing orders and change orders
  • Kick-off meetings and coordination between all departments
  • Liaison between the customer and SFI

Supporting the Regional Managers

Your regional manager is your main point of contact but it is unrealistic to think that he will be in the office every workday.  When they are out, we have staff to support them on a day-to-day basis.

  • Project Managers assist the Regional Managers to ensure projects run smoothly and efficiently and provide customer service. 
  • The Sales Department Administrative Assistant types the quotes and orders for the RMs and is available to help should the need arise.
  • Our Office Manager is another resource to provide the necessary information should you have an urgent need. 

Replacement Parts Sales

To allow the RMs to focus on their customers’ tank projects, replacement parts are handled separately by the Replacement Parts Manager, who is responsible for quoting, processing orders and shipping the parts.

As with tank projects, you will have one point of contact for your replacement parts needs. 

Click here to request a parts quote or information. 

Replacement Parts Sales Region

Color Key

Keith Mizell - Gold

Marvin Komm - Lavender

Mark Donnell - Green

Joe Mizell - Cream

Bill Stovall - Blue

Darin Wallace - Rose

Canada (Western)

Joe Mizell

British Columbia
Northwest Territories
Yukon Territory

Canada (Eastern)

Bill Stovall

New Brunswick
Nova Scotia
Prince Edward Island

Keith Mizell

Keith Mizell (Sales Manager)

Keith began working at SFI in 1990 as a shop welder and field fabricator. In 1994, he became the Layout Designer for the engineering department and since 2000, Keith has been responsible for sales in the central territory for all industries served by SFI with emphasis on new markets and specialized equipment. He also handles sales and project management of spray dryers and associated equipment.  Keith was promoted to Sales Manager in 2018 and brings abundant knowledge and experience to the position. 

Marvin Komm 

Marvin Komm

Marvin started working at SFI in 2005 and had 14 years of previous industry experience in areas of CAD Design, Components Sales, Project Management, Product Management and Tank Sales. Marvin is currently responsible for both territory and key account sales. He specializes in shop built vessels for the pharmaceutical and biotech industries, and is also well versed in food, dairy, beverage and chemical equipment that is both shop and field fabricated.  Marvin is an active member of the International Society for Pharmaceutical Engineering (ISPE) and can be seen at many of their regional shows throughout the year.

Joe Mizell

Joe Mizell

Joe began working at SFI in 2000 as a field craftsman and was promoted to Field Supervisor in 2003. In 2005 he took a position in our shop facility until 2007 where he joined the Sales Department as an estimator and component sales. In 2010, he was promoted to Regional Manager and is now responsible for both a territory and key accounts in the Midwest, Western Canada and Puerto Rico. Joe’s career with SFI has given him hands on experience in all areas of our business with an emphasis on field-fabricated equipment. Some of Joe’s skills include new business development, estimating, sales, contract negotiations, project management, construction management, project planning and scheduling.

Darin Wallace

Darin Wallace

Darin started at SFI in 1987 and worked in many capacities for the company through 2001 including working as a field welder, shop welder, field service technician, CAD Designer and a Regional Manager responsible for a sales territory. After leaving SFI to pursue other opportunities, Darin returned in 2009 as a Regional Manager specializing in selling freezer enclosures, as well as handling a territory in the southeast serving all industries.

Bill Stovall

Bill Stovall

Bill started at SFI in 2008, bringing with him over 26 years of prior industry experience including tank design, project management, sales and contract negotiation. He is responsible for SFI’s Northeast territory, including Eastern Canada. Bill has extensive tank and vessel experience in the pharmaceutical, brewing, food and beverage industries, and is an active member of the ISPE (International Society for Pharmaceutical Engineering) organization. Bill is well versed in vessels for all industries served.

Mark Donnell

Mark Donnell

Mark started at SFI in 2012 as a Project Manager and has over 15 years experience in the stainless steel equipment industry.  In 2014, he became a Regional Manager for tank sales and was given a territory.  His educational background includes a Bachelor’s degree in Marketing from Missouri State University.

Tony Yarham

Tony Yarham

Tony started working with SFI in 1990 as a CAD Designer with previous tank experience.  He was soon promoted to Engineering Assistant Manager and eventually took over the role of Engineering Manager.  In 2011, Tony accepted a position as Project Manager for the Sales Department.  In this role, he works closely with customers, sales staff and other departments, as projects move from order placement to shipment, and beyond. Tony also served as interim Safety Manager in 2011 and 2012.


Stuart Johnson

Stuart began his career with SFI in 2007, working as an Engineering Designer.  He is highly experienced in 2D and 3D CAD design.  He has worked in Layout for the past five years, providing Bills of Materials to Purchasing and Cut Sheets to Production. He accepted the position of Project Manager in October 2016.  Stuart's engineering experience has equipped him well to work with our sales team and customers in a project management role.

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