William Heiser
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William Heiser Email & Phone Number

Senior Director, Information Security at American Residential Services
Location: Greater Cleveland, United States 10 work roles 1 school
2 work emails found @lincolnelectric.com 3 phones found area 216 and 213 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 3 phones

Work email b****@lincolnelectric.com
Direct phone (216) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Role
Senior Director, Information Security
Location
Greater Cleveland, United States
Company size

Who is William Heiser? Overview

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Quick answer

William Heiser is listed as Senior Director, Information Security at American Residential Services, a with 1924 employees, based in Greater Cleveland, United States. AeroLeads shows a work email signal at lincolnelectric.com, phone signal with area code 216, 213, and a matched LinkedIn profile for William Heiser.

William Heiser previously worked as Director, Global Information Security at Lincoln Electric and President at Isc2 Cleveland Chapter. William Heiser holds Bachelor'S Degree, Cybersecurity And Information Assurance from Western Governors University.

Company email context

Email format at American Residential Services

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*@lincolnelectric.com
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AeroLeads found 2 current-domain work email signals for William Heiser. Compare company email patterns before reaching out.

Profile bio

About William Heiser

At Lincoln Electric, leadership in global information security is not just a role—it's a commitment to excellence and a proactive stance against ever-evolving cyber threats. With a robust foundation in IT management and an unwavering focus on securing operations, my journey has been defined by driving strategic initiatives that safeguard our data and systems. Steering the helm of a dynamic team, we've cultivated an environment where risk identification and mitigation are paramount, ensuring business continuity and resilience. It's the dedication to fostering secure information systems that propels us forward, as we collaborate across the organization to fortify our defenses and champion a culture of security.

Listed skills include Security, Information Security, Information Security Management, Network Security, and 46 others.

Current workplace

William Heiser's current company

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American Residential Services
American Residential Services
Senior Director, Information Security
Cleveland, OH, US
Website
Employees
1924
AeroLeads page
10 roles

William Heiser work experience

A career timeline built from the work history available for this profile.

Director, Global Information Security

Current

Cleveland, Oh, Us

Oct 2017 - Present

President

Isc2 Cleveland Chapter

As chapter President, I am responsible for presiding over the business meetings and ensuring that all rules and regulations are observed, appointing and serving as a member of all committees, deciding tie votes, coordinating sponsors, arranging presenters, securing the meeting location, ordering food and beverages, and ensuring that all officers faithfully perform their duties.

Jan 2018 - Dec 2019

Manager, It Security Engineering And Operations

Akron, Ohio, Us

Responsible for making decisions in such a way that risk is identified, communicated, and effectively mitigated; directs and manages project initiatives from beginning to end; define project scope, objectives and deliverables that support business goals in collaboration with senior management and stakeholders; effectively communicate pertinent risk information to management, business constituents, team members and appropriate audiences in a timely and clear fashion; liaison with business partners across the organization in an ongoing basis; build, develop, and grow any business relationships vital to the success of the project.

Aug 2016 - Oct 2017

It Security Manager

Cleveland, Oh, Us

Manage, monitor, and spearhead all ongoing activities to protect the confidentiality, integrity, and availability of customer, employee, and business information. Maintain compliance with organization policies and standards, driving performance across a broad range of projects. Monitored and led full disk and email encryption implementation, effectively gathering requirements, selecting vendors, and negotiating various types of contracts. Set technical roadmap by implementing all new IT policies and procedures, championing organizational streamlining activities. Effectively managed risk and protected vulnerable networks following detailed risk assessments. Additionally, led all internal and external 404 auditing for company. Specific project highlights, include:Select Projects:● Significantly reduced number of vulnerabilities and optimized IT Security spending. ●Effectually optimized existing endpoint protection suite, replacing existing solution enterprise wide and saving $75,000 per year.●Eliminated the need to increase staffing by implementing a SaaS SIEM, Vulnerability Scanning, and Intrusion Detection solution with security monitoring overseeing all solutions.●Implemented SaaS based single sign-on solution enterprise wide.●Complete re-write of all IT policies, standards, and procedures into lay terms that associates actually read.

Jan 2010 - Aug 2016

Senior Information Security Analyst

Cleveland, Oh, Us

Led security monitoring to maintain information security program and ensure controls were implemented correctly. Monitored corporate effectiveness and complex financial systems as well as critical infrastructure systems. Drove implementation of full disk encryption for more than 850 laptops in less than 90 days, encrypting 2,500 mailboxes in under 30 days. Select Accomplishments:●Established and spearheaded corporate IT Security Steering Committee to lead strategy for IT resource management and safety.

Jan 2009 - Jan 2010

Technology Analyst

Cleveland, Oh, Us

Served as representative for the Residential Business Unit on all technology projects, optimizing user access reviews to reduce the number of hours spent each quarter.Select Accomplishments:●Captured more than $250,000 per year on power and cooling costs by redesigning new data center and implementing new power management settings. ●Increased operational efficiency by slashing auditing hours by 80%.

Jan 2007 - Jan 2009

It Security Administrator

Cleveland, Oh, Us

Developed and monitored Websense web filtering solution, overseeing Surf Control email filtering solution and Bindview reporting system. Reduced development time by half through solution optimization and management.Select Accomplishments:●Developed process to comply with new legislation through implementation of 404 auditing program.

Jan 2006 - Jan 2007

Network Administrator

Cleveland, Oh, Us

Designed, maintained, and evaluated computer networking and server systems for employee network. Installed and configured physical and virtual servers, managing email and key card access accounts. Select Accomplishments:●Reduced data gathering and processing times by implementing wide area network for first time in company history, greatly improving data availability.

Jan 2002 - Jan 2006

Help Desk

Cleveland, Oh, Us

Performed various hardware and software support capabilities, including responding to bugs and issues outlined by clientele. Provided assistance in identifying and managing technical problems, leading as liaison between customer and technical department. Ensured timely management of issues to maintain customer service experience.Select Accomplishments:●Implemented imaging solution to reduce time of computer deployment by more than 80%.●Traveled to more than 90 separate locations in 12 months, installing over 1,000 computers and networks.

Jun 1996 - Jan 2002
Team & coworkers

Colleagues at American Residential Services

Other employees you can reach at ars.com. View company contacts for 1924 employees →

1 education record

William Heiser education

  • Western Governors University
    Western Governors University
    Cybersecurity And Information Assurance
FAQ

Frequently asked questions about William Heiser

Quick answers generated from the profile data available on this page.

What company does William Heiser work for?

William Heiser works for American Residential Services.

What is William Heiser's role at American Residential Services?

William Heiser is listed as Senior Director, Information Security at American Residential Services.

What is William Heiser's email address?

AeroLeads has found 2 work email signals at @lincolnelectric.com for William Heiser at American Residential Services.

What is William Heiser's phone number?

AeroLeads has found 3 phone signal(s) with area code 216, 213 for William Heiser at American Residential Services.

Where is William Heiser based?

William Heiser is based in Greater Cleveland, United States while working with American Residential Services.

What companies has William Heiser worked for?

William Heiser has worked for American Residential Services, Lincoln Electric, Isc2 Cleveland Chapter, Signet, and Forest City Realty Trust, Inc..

Who are William Heiser's colleagues at American Residential Services?

William Heiser's colleagues at American Residential Services include Ken Foreman, Leslie Dreyer, Vanda Vieira, Alessandra Oliveri, and Phil Miller.

How can I contact William Heiser?

You can use AeroLeads to view verified contact signals for William Heiser at American Residential Services, including work email, phone, and LinkedIn data when available.

What schools did William Heiser attend?

William Heiser holds Bachelor'S Degree, Cybersecurity And Information Assurance from Western Governors University.

What skills is William Heiser known for?

William Heiser is listed with skills including Security, Information Security, Information Security Management, Network Security, Disaster Recovery, Computer Security, Vulnerability Management, and Vulnerability Assessment.

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