Mendy Oppenheim

CEO at Topaz HR Advisory

Mendy acquired his in-depth HR knowledge working as a team player for over 25 years. An enthusiastic and quick learner, Mendy assumed a variety of HR responsibilities to support the growing HR needs of the expanded operations. He specializes in HR-related legal regulations, compensation and benefits policies, payroll management, finance and taxes.

Chesky Weinberger

COO at Topaz HR Advisory

Over the span of Chesky’s career, dealing with people has always been the most enjoyable part of his job. Chesky has been instrumental in helping growing companies build and lead teams of talented members. He offers guidance on approaching the hiring process, implementing processes to increase efficiency, creating engaging work environments to enhance productivity, and handling all of the companies’ HR-related issues. Chesky’s people-oriented approach and strong sense of operations allow him to offer the most efficient and beneficial HR services for business owners.

If everyone is moving forward together,
then success takes care of itself.

– Henry Ford

Strategically creating collaborative, efficient,
and profitable workplaces

Our Mission
To educate and inspire business owners in managing and securing their team talent, while ensuring compliance with local HR regulations

The Topaz Advantage

Discover our simplified, people-first approach, as we patiently address your particular business needs and concerns.

Deep Industry Experience
When an HR-related challenge arises, you need a reliable, experienced specialist to guide you. Topaz’s team brings you over 75 years of combined success in business operations and HR management.

Some industries we’ve served:
Manufacturing, construction,
healthcare, e-commerce, retail services

Diversity Comprehension
Today’s workforce is highly diverse, which presents challenges in communication and makes cultural bridging even more critical. Our multilingual staff is here to help you understand your employees’ needs and design your HR policies with unique cultural values in mind.

Personalized Experience
When you run a business, your appreciation for good service grows. Our cross-sector knowledge helps us respond to the specific challenges and dynamics of your business.

Our Promise To You


We understand that collaborating to solve your toughest HR challenges requires you to share classified business information. Our clients know that their privacy is never compromised.


Honesty and trust are the foundations of all successful relationships. We deliver on our commitments, while holding ourselves accountable for our output.


Effective talent management translates into satisfaction, accomplishment, and higher revenue. We help businesses foster a culture in which employees are appreciated and empowered to succeed.

Holistic Client-Value Approach

Our goal is to enable our clients to become high-functioning entities. We’re invested in our clients’ achievements, eager to ensure their HR needs are met and the practices align with their business goals.

With Topaz on your team, you can

With Topaz on your team,
you can

Focus on growing your business

Minimize exposure to legal risks

Motivate employees and boost productivity

Gain peace of mind, knowing that you're compliant

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