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Who We Are

Allied Human Resources was established by a trio of like minded friends, whose interest in workforce development led to the establishment of their HR consulting business. 

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Ambrosio Constantino MPA, President of Allied Human Resources, is an experienced executive with over 30 years of experience in the private, public, and non-profit sectors. His roles have included the anti-terrorism Program Manager in the National Guard, and Brigade Executive Officer deployed to Iraq and Afghanistan. He was a Homeland Security Advisor to the Gov. Guam Homeland Security Dept. For the Red Cross, he was the Disaster Program Manager for the Guam Chapter. He has also worked in Safety and Security and Housekeeping management in the hotel industry. One of Ambrosio's strengths is his ability to plan strategically, coordinating across all levels within the private, public, and non-profit sectors.

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Grace Donaldson MPA, SHRM-SCP, CFO of Allied Human Resources, is an experienced executive with over thirty years of experience in human resource management in the hotel, insurance, and recruitment industries. Her experiences have included opening activities of hotels, recruiting, training, and consulting with small businesses on employment laws and regulations.  Volunteerism is important to Grace. She is a board member of the Guam Coalition Against Sexual Assault and Family Violence. She also served as past President of the Society of Human Resource Management.

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Jeffrey Vitkovitsky CPCT, CDER, COO of Allied Human Resources, is a small business owner for over two decades.  However, since 2010, he managed a staffing and recruiting company, successfully growing the business to include government agencies, retail stores, trucking companies, hotels, and construction companies to name a few.  As a certified drug testing collector and trainer, he has helped several companies manage their drug testing program which creates a safe working environment.

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