About HaloEffect
We want to help others, because we have been where you are and deeply understand the challenges in building the right teams, culture and energy.
Practitioner Experience.
Consulting Expertise.
Fixing the Management Layer of Organizational Change
Most change initiatives fail not because of the technology or the strategy, but because no one translates either into how managers actually lead, day to day. That's what HaloEffect was built to solve, whether the disruption is an AI rollout, an ownership change, M&A, or a leadership transition.
We work with HR and operations leaders at growing organizations to close the gap between a redesign's intent and what managers actually do, through structured sprints, diagnostic assessments, and practical redesign of how work happens..
Tamar Cohen
CEO & Founder
Follow on LinkedInTamar Cohen is a keynote speaker on AI, the future of work, and human-centered workforce design — including as a headline speaker at WorkHuman Live 2026. As founder of HaloEffect, she brings 20+ years of VP-level enterprise experience across financial services, pharma, and insurance, having built customer and employee experience functions from the ground up.
Across financial services, banking, pharma and insurance, Tamar has developed and managed journey transformation, listening initiatives, training, metric dashboards and initiatives targeted to increase customer and employee loyalty and business value.
Testimonials
"Tamar has a deep understanding of the customer and strategies that drive loyalty, acquisition, and world-class experiences to significantly drive business performance. While she delivered results across multiple senior leadership roles at Fortune 500 companies, she knows and “gets” the triggers of what customers want, across multiple industries. This is an exceptionally rare talent and I have yet to find it in many others."
— SVP Head of Customer Experience, Insurance
"We hired HaloEffect to drive our Patient Experience and connect our internal culture to that structure. Tamar took time to understand our business needs, our goals and strategies. She then worked with the employees and managers to understand where the gaps in understanding were and built a prioritized execution plan. We were able to build a complete employee growth plan, directly tied to our patient experience outcomes. It was brilliant."
— COO, Vivify Medical
"Tamar delivered a wonderful workshop defining the 5 Pillars of Work Experience. We went through each and left with a prioritized plan we can start to implement on Monday. She was engaging, knowledgeable and fun to listen to!"
— CHRO, Technology