About Us

We help organizations cut through complexity and deliver lasting impact.

At Avyance, we combine modern technologies, streamlined operations, and empowered teams to stay competitive and mission-focused across federal, commercial, and nonprofit sectors.

Our Core Values

Our core values are more than words—they underpin how we think, work, and lead.

Excellence

Deliver impact, exceed expectations

We exceed expectations and deliver impact. We are continuous learners, always working to improve ourselves and our skills. We work efficiently and effectively.

Creativity

Solutions that are outside-the-box

We look for solutions that are outside-the-box. We are courageous and take on challenges. We find ways around roadblocks and know to expect the unexpected.

Teamwork

It's all about the team

It's all about the team. We boost each other up, partner with our clients, hold ourselves accountable, and show up as one Avyance. We encourage and recognize our colleagues.

Trust

Honest communication and authenticity

We treat everyone with respect and dignity. We reinforce our credibility through honest communication, empathy, and authenticity. We deliver on our commitments.

Meet Our Leaders

Experienced professionals dedicated to building teams and delivering innovative solutions for our clients' most complex challenges.

Sarah Jeppesen

Founding Partner and Chief Executive Officer (CEO)

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Sarah has decades of experience designing and implementing large-scale transformation efforts, combining business needs with a focus on the human side of organizations.

She leads teams large and small in delivering innovative and realistic solutions for client challenges, and is dedicated to building teams and workplaces that value diversity and developing people's talents.

Tatiana Jeromskaia

Founding Partner and President

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Tatiana is an experienced executive known for driving business and client success, supporting efforts from strategy development through implementation.

She has happily tackled some of her clients' most complex challenges, from the development of a new tax system to product deployments and facility consolidations, to international business strategy, and more.

Andrea Kiernan

Vice President, Organizational Effectiveness

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Andrea is an Organizational Effectiveness Leader with a passion for all things people. Her expertise spans organizational change management, communications, training, and leadership development.

She builds meaningful, trusting relationships with clients and colleagues at all organizational levels through her program management and stakeholder engagement expertise.

Lara Van Nostrand

Principal

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Lara has almost 30 years of experience developing and delivering learning and communication solutions. An engineer by degree, she bridges the gap between engineers and strategic communicators.

As a Certified Technical Trainer (CTT) and Change Management (PROSCI) practitioner, Lara has a systematic and organized style for creating client solutions that inspire successful outcomes.

Stephen Berry

Principal

LinkedIn ↗

Stephen brings nearly 20 years of global experience solving complex challenges in strategy development and execution, project management, and process improvement.

He honed his skills across people, technology, and heavy infrastructure projects throughout the UK, Australia, and US.

Join a team that values people as much as mission outcomes.

We're always looking for experienced professionals who share our commitment to excellence, creativity, and trust.

View open positions