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Oppenheimer Investigations Group (“OIG”) is committed to conducting conscientious and impartial investigations to help our clients respond promptly and meaningfully to workplace and school complaints. Through our neutral investigations and other services, we help our clients create a culture of safety, inclusion, and accountability for their employees and students when conflict or misconduct occur.


We are committed to our impartiality. Unlike other law firms, we do not represent the parties in our investigations or provide litigation services to clients, which reduces potential conflicts of interests.

OIG is a trusted leader in the niche industry of workplace and school investigations. Our attorneys have decades of legal experience and expertise handling complex, sensitive, and high-profile cases, and our team helps train and educate other professionals in the field on how to conduct thorough and unbiased workplace investigations.

Commitment to Diversity

The diversity of our team also sets OIG apart from other investigations firms. Our attorneys, writers, and staff come from diverse racial, cultural, and legal backgrounds, span many ages, and have unique lived experiences and different perspectives that inform our work. Because of our diversity, we are able to assign an investigator with the right skill set, cultural sensitivity, and experience as needed in certain cases. We offer bilingual Spanish and English investigation and training services, and we have the benefit of getting multiple perspectives on issues, which enhances the insight we bring to our investigations and services for our clients.

Who Are We?

As the parent of two adopted, biracial children, I am very familiar with the oft-used question: “What are you?” Sometimes the question seems rude, and other times, it’s an opening to a meaningful discussion.

We are all a complex mix of attributes that comprise our identities – some may be obvious to others – gender, race, age – to some extent. Others are not as obvious – sexual orientation, gender identity, religion – for example. And of course, these attributes do not define us, and for some of us, they may be less important than things like where our parents came from, whether they owned their own home or went to college, whether we love the city or the country (or both!), what music we listen to, etc.

At OIG we believe our diversity is an important aspect of who we are as a law firm. The fact that we are 75% women and four of our five partners are BIPOC may be obvious. The fact that three of our attorneys are veterans (as is our office administrator) is less so.

So, we sent a questionnaire to our team, asking everyone to tell us about some of the ways they identify themselves – where we were born, the languages we speak, our sexual orientation, our religion, our age, whether we are partnered or single, etc. With the answers, we have created this word cloud showing the various responses. It doesn’t tell you what music we listen to, but it is a window into some of the many ways that we bring diverse perspectives to our work.

– Amy Oppenheimer

Founding Partner

Insight with Integrity

As former litigators, advocates, and judges, we are sensitive to the potential legal implications of our investigations, but we also pride ourselves on being mindful of the human relationships at the center of our cases. We approach each investigation with integrity. We interview parties and witnesses conscientiously, making sure we gather relevant information without exacerbating the conflict. While the facts guide our findings, we are thoughtful in how we analyze and explain those findings, since they might impact people’s lives and livelihoods. We also offer clients other neutral services, such as training and mediation, when we see that an investigation may not fully resolve the conflict.

Fairness and Accuracy

Our team is committed to continuing to educate ourselves on our own implicit biases. We have built into our investigative process checks and balances, such as having every report reviewed by a second attorney to help uncover any blind spots and inconsistences, so that the work we provide our clients is fair and accurate.

At OIG, we care about the work we do. We believe that helping our clients manage crises in a fair and balanced way promotes safer, more equitable workplaces and school campuses.