Submetering & Utility Billing Since 1983

Customer Satisfaction For Over 36 Years

Founded in 1983, Guardian provides a full suite of utility cost recovery services including submeter system design, submeter installation services, data acquisition, utility billing, collections and utility management - all backed by a 36 year commitment to superior customer service.   Our primary markets are multi-unit residential and commercial properties including apartments, condominiums, shopping centers, offices and manufactured housing communities.   We create value for our customers by minimizing property utility usage, maximizing recovery of utility costs, lowering operating expenses and increasing property valuations. By creating value for our customers, we help conserve water and energy resources. 

Our first priority is to efficiently recover utility costs through the application of submetering measurement technologies. Guardian technologies are supported by an in-house staff of programmers and web application engineers. Headquartered in Columbus, Guardian maintains regional sales and service centers in Austin, Honolulu, Jacksonville, Tacoma, San Diego and Raleigh. We work directly with our customers to increase net operating income, improve property valuation and promote water and energy conservation. 


We believe it is fundamentally important to clearly understand the difference between what we can and cannot control, so we focus our time, talent and capital on those things we can control. In keeping with this core belief, we staff our own IT department team, bill processing facility and meter installation and service departments.   We cultivate a work environment that rewards tenacity, inquisitiveness and personal integrity. We offer our employees increasingly attractive compensation and performance-based incentives. We make every effort to promote employees to higher levels of responsibility from within the company. 


Our vendors play a key role in helping us achieve our mission. We protect and strengthen our vendor relationships by maintaining a long-term vendor payment record that has earned Guardian the highest possible Dun & Bradstreet credit rating for a company in our size range.  


Leadership Team


Founder & CEO

Harry Apostolos

In the early 1980s, Harry noticed a textbook case of market inefficiency while managing apartments on the north side of ...[Read More]

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Board Member

Grant Neilley

Originally growing up on the family farm outside Cambridge Ohio, Grant began his accounting career in 1982 ... [Read More]

Chief Technology Officer

Robert Kennedy

Robert first joined Guardian in 2003. Robert's team has built and maintained GuardianSoft+, from the ground up ... [Read More]

Vice President Sales

Chris Apostolos

Chris is responsible for all sales territories in the U.S. as well as developing the overall marketing strategy ... [Read More]

Director of Strategic Accounts

Jaclyn LaFave

Jaclyn provides account representation for public sector clients including military bases and housing authorities ... [Read More]

Operations Manager West

Jen Apostolos

Jen started with Guardian in 2018.  She currently manages a team of utility billing coordinators at our office in  ... [Read More]

Rhonda has over 20 years of experience in the submetering and utility billing industry.  She started at Guardian in 2002 ... [Read More]

Vice President Operations

Rhonda Neville

Noah oversees all aspects of meter maintenance and wireless RF system troubleshooting.  In addition, Noah ... [Read More]

Director of Technical Services

Noah Neal

Tricia is responsible for all HR functions at Guardian and continues to build employee engagement ... [Read More]

Director of Human Resources

Tricia Ricchino

Stephanie started with Guardian in 2009 as a CSR.  In 2011 she moved into New Account set up before accepting her current... [Read More]

Operations Manager East

Stephanie Palma

Sean has over 25 years of experience in utility management. Regarded by many as an expert in the industry ... [Read More]

Vice President Bus. Development

Sean Dicks

Julie has over 16 years of experience in the utility billing industry.  She started as a billing coordinator before ... [Read More]

Director of New Accounts

Julie Tittel

George started at Guardian in 2002 as an accounting coordinator and is now department manager.   George is responsible for ... [Read More]

Finance Manager

George Gagnon