Guardian Service Industries Inc.
About Us The Guardian Difference
Guardian Service Industries, Inc. was established over 100 years ago in 1918.
Today, we are a 4th generation family owned service corporation that places unprecedented value on customer service, professional workforce, integrity, accountability and transparency.
Guardian experienced an impeccable growth over the past century and is now a multi-million-dollar premier facility services company. Guardian is a privately held company that has continually evolved, expanded its service offerings and has proudly grown organically in the facility service industry.
Our service areas include Janitorial services, Engineering, Maintenance, Security, Front Desk & Concierge, Window Cleaning, Pest Control, Lighting & Electric and Metal, Marble & Wood Restoration. By grouping or integrating our services together, clients always enjoy increased cost efficiencies.
Our Mission
Deliver outstanding value, continuous innovation, and exceptional customer service.
Our Vision
A leader in maintaining and providing unparalleled facility services throughout the Northeast, New England and Mid-Atlantic regions.
Meet The Team

Samuel “Sandy” Herzfeld
CEO, Principal
Samuel “Sandy” Herzfeld joined Guardian in 1973. He is the Co-Owner and Chief Executive Officer of Guardian and is involved in the day-to-day operations of the company. He is responsible for overseeing the company’s financials, technological developments, quality control programs, policies and procedures.
His involvement in the installation of latest technologies such as iPad installation in all sites, led to the improved employee training, increased productivity, and resulted in better communication with our customers.
He was instrumental in instituting the GreenClean® program and the development of Guardian 24/7 – our web-based portal that enables users to access valuable account information through the internet. Sandy graduated from Philadelphia University in 1966 with a Bachelor’s degree in Business and Commercial, General.
Samuel “Sandy” Herzfeld
CEO, Principal

Alan Bressler
COO, Principal
Alan Bressler joined Guardian in 1980. He is the Co-owner and Chief Operating Officer of Guardian and is involved in all aspects of operations from labor relations to transitioning new accounts.
He began his career at Guardian as an Operations Manager and later becoming an Account Executive. This foundation and extensive background has given him the understanding and tools to organically grow the company.
Additionally, his daily involvement with our clients gave him an insight into customer needs and paved a path for Guardian to vertically expand into new markets. Alan graduated from Ohio University in 1979 with a Bachelor’s degree in History & Psychology.
Alan Bressler
COO, Principal
Allen Fredericks
CFO
Allen Fredericks, who joined Guardian in 2007 as Chief Financial Officer, brings extensive and broad-based experience in all aspects of accounting, internal controls, business management, and profit improvement initiatives. Both an MBA and CMA, he has had great success with start-up and re-engineering financial functions, establishing sound financial and business policy and partnering with senior management to achieve business goals.
Allen Fredericks
CFO

Charles Lobosco
Senior Vice President, Business Operations
Charles is an industry veteran and SME with over 32 years in the facility services industry. Starting his career in 1986 as a sales and account executive for a large regional service provider, Charles rose quickly in the industry to where he is today after having served in various senior management roles for several companies, including 6 years as President for a national service provider prior to joining Guardian in 2013.
Charles oversees numerous business units in both the Janitorial and Security divisions, and provides senior level leadership and advisement across all company lines. Under his leadership, Guardian Security Services has had triple digit growth and is now a formidable and respected provider in the contract security arena.
Charles holds a B.S.B.A from Western New England University.
Charles LoBosco
President
Joe Large, LEED GA
Executive Vice President
A Guardian employee since 2010, Joe brings 25+ years of expertise in Real Estate Development, Management, Facility Management, Building System Administration and Practical Mechanical Engineering. During his tenure with Guardian, Joe has continuously honed his facility services skills, by turning his focus from an end user perspective to that of a service provider.
He is a contributor and benefactor of Guardian’s century of experience, expertise and leadership. Joe possesses a diverse skill set which enables him to manage large-scale projects, from inception to completion, from a financial and operational perspective. Joe is an industry thought leader and has earned his reputation for delivering on his promises.
Joe Large
Executive Vice President

Aaron Froese
Controller/Senior Estimator
Mr. Froese is responsible for the accounting operations of the company, inclusive of the production of periodic financial reports, maintenance of an adequate system of accounting records, and a comprehensive set of controls and budgets designed to mitigate risk, enhance the accuracy of the company’s reported financial results, and ensure that reported results comply with generally accepted accounting principles and financial reporting standards.
Aaron Froese
Controller/Senior Estimator

Matthew Bressler
Vice President, Lighting & Window Maintenance
Matthew joined the family business in 2009. As President of the Window Cleaning & Lighting, Matthew Bressler is responsible for the operation and financial reporting for these Divisions. Matthew also serves as Guardian’s Safety Manager, building the safety culture for our employees and clients.
Additionally, he is an authorized OSHA Trainer, and regularly gives General Industry and Construction training for Guardian’s staff, our clients, and the public. Matthew is an official ISSA Certification Expert.
Matthew graduated from Queens College in 2010 with a bachelor’s degree in Accounting and Business Management.
Matthew Bressler
Vice President, Window Maintenance & Lighting

Lyn Bressler
Vice President
As Vice President, Lyn’s goals are to ensure that Guardian is an inspiring place to work, knowing that the employees make the Company. She constantly thrives to motivate others and create a great working environment. Additionally, Lyn is also passionate about ensuring the company’s quality control programs, and policies and procedures are transparent, proactive and effective in providing the ideal customer experience.
She has in-depth knowledge of New York State, local and federal employment laws, human resource practices, and is an active member of the Society of Human Resource Management and the Human Resources Association of New York. Lyn is an official ISSA Certification Expert, a member of CREWNY, and a member of the National Association of Professional Women (NAPW). Most recently she became a GBAC-Trained Technician by successfully completing her GBAC Fundamentals Online Course: Cleaning & Disinfection Principles with an emphasis on SARS-CoV-2/COVID-19.
She graduated from American University – Kogod School of Business with a Master’s in Business Administration – MBA, Entrepreneurship/Entrepreneurial Studies.
Lyn Bressler
Vice President

Jeffery Logan
Regional Vice President, NJ
Jeffrey Logan has a keen eye for business opportunities, and his experience in residential and commercial real estate helps him discern between different property needs and identify potential areas of improvement.
Jeff oversees New Jersey operations, client-relationship management, tracks new markets and emerging trends, and simultaneously helps Guardian adapt to market changes.
Jeff graduated from Wagner College with a Bachelor’s degree in Marketing and Management and is currently the President of the Board of Directors of the New Jersey Chapter Community Associations Institute (CAI NJ).
Jeffrey Logan
Vice President
Technology We Use The Latest Tech To Make Your Job Easier

Guardian GO is a web-based SaaS application that provides a comprehensive service request, preventive maintenance, inspection and asset management system. The solution is delivered via the Internet to your standard browser. There is no hardware to buy or software to install. You will be provided with a login and password enabling access to the data.
Additionally, Guardian Go is our internal Customer-relationship management (CRM) system that manages our interaction with current and potential customers.
With our simple timesheet management solution, our clients gain the valuable insight needed to make the most of their time and attendance data. Our solution works seamlessly with our client’s payroll system, eliminating manual tracking and data entry while ensuring accuracy and compliance.
Benefits of Time Management Solution:
- Secured tablet acts as a Web Time punch clock for all employees
- Employees have their own pin
- Photo verification
- Date and time stamped
- Real time data

Our Reporting and Incident Trending & Analytics module enables you to organize and tap the employees information gathered in the field. You can create customized templates for the different types of reports you require us to provide, so that the information is presented in the best way for you to analyze it.
With our technology, you can take data and use it to assess performance, identify risks and trends, and make planning decisions, such as increasing staffing coverage or improving access control. Or you can access analyses we carry out for you and skip straight to the decision-making
Corporate Social Responsibility We Care About Our Community
Corporate Social Responsibility
Working with the right partners
Guardian’s procurement team are focused on ensuring they purchase ethically and fully review all partners, sub-contractors and suppliers before engaging in business with them. The team work to develop long-term relationships with suppliers to help build the trust they need to make sustained improvements to workers’ conditions and incentivize suppliers by building in compliance to labor standards into their contracts.

Our Affiliations We Work With The Industry's Best
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