
120+
Businesses Advised
18+
Years Experience
30+
Efficiency Growth

About lumin
A consulting firm built around the work, not the deck.
We started Lumin because we were tired of the consulting industry's worst habit: charging for advice that nobody could actually use. So we built a firm where every engagement is led by someone who has done the work, where every recommendation is testable, and where we stay close after the project ends.
Our story
Twelve years. One discipline.
Lumin was founded in 2014 by three operators who had spent the previous decade running businesses, not advising them. We had hired consultants. We knew exactly which parts were useful and which parts were theatre.
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We built Lumin around the useful parts. Senior practitioners only. Engagements measured by what the client did differently afterwards, not by deliverables shipped. A standing rule that we will turn down work we do not believe we can do well.
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Twelve years on, we are still small on purpose. Around forty people across three offices. We take on roughly thirty engagements a year. Half of our work comes from clients we have served before. We like it that way.
What we believe
Four principles we do not negotiate on.
1
Integrity
We operate with transparency and honesty in all our dealings.
2
Segmentation Analysis
Excellence: We strive for the highest standards in everything we do.
3
Go-To-Market Strategy
Innovation: We embrace cutting-edge solutions to meet the evolving needs of our clients.
4
Competitive Positioning
Collaboration: We believe in the power of working together to achieve the best results.
2014
Founded in Brooklyn
Three founders, one shared office, a stubborn idea about what consulting should be.
2016
First retained engagement
A regional bank asks us to stay on as standing advisors. The model that defines the firm is born.
2018
London office opens
European clients had been asking. We hire two partners we already knew well and went.
2021
The pandemic stress test
Pivoted forty engagements to remote work in three weeks. Lost no clients. Hired six.
2024
Singapore office opens
Asia-Pacific demand had outgrown the airline schedule. Two partners moved permanently.
2026
Forty people. Thirty engagements a year.
Still small on purpose. Still turning down work we do not believe we can do well.
A short history
Twelve years, in twelve moments.
The people
Senior practitioners. Not pitch decks.
Every engagement is led by a partner who has done the work themselves. No layered teams, no hand-offs to juniors after the kickoff. Meet the people who will actually be in the room.

Managing Partner
Marcus Hale
Marcus Hale founded Lumin with one belief: that senior practitioners, not junior teams, should do the work. Over a 20-year career spanning McKinsey, two private equity-backed portfolio companies, and his own boutique practice, Marcus has led more than 80 client engagements across financial services, healthcare, and technology. His work has directly influenced over $4 billion in enterprise value creation. At Lumin, Marcus focuses on operational restructuring, executive alignment, and large-scale change management. He holds an MBA from Wharton and a BA in Economics from Georgetown. Outside of client work, he mentors first-generation business school students and serves on the board of a nonprofit focused on workforce development in underserved communities.

Senior Advisor
Camille Roux
Camille Roux joined Lumin after a distinguished career with Deloitte's human capital practice in Paris, Johannesburg, and New York. She specializes in the intersection of culture and performance: how organizations build the conditions for exceptional execution and how leaders show up when the stakes are highest. Camille has advised boards and C-suites through post-merger integrations, succession planning, and global workforce transformations. She is a certified executive coach and holds degrees from Sciences Po Paris and INSEAD. Camille is a frequent speaker at the World Economic Forum and has authored two papers on leadership resilience published in the Harvard Business Review. She is fluent in French, English, and Afrikaans.

Strategy Partner
Ryan Smith
Ryan Smith spent the first decade of his career at Bain and Company, where he became one of the youngest partners in the firm's New York office. He subsequently served as Chief Strategy Officer at two publicly traded companies before joining Lumin. His areas of focus include competitive strategy, portfolio optimization, and new market expansion. Ryan has led strategic planning processes for clients across retail, consumer goods, and technology, consistently delivering frameworks that teams can execute against without a consultant in the room. He holds a BA in Mathematics from Princeton and an MBA from Harvard Business School, where he graduated with distinction. Ryan is an avid marathon runner and has completed the Boston, Berlin, and Tokyo majors.

Operations Lead
James Wilson
James Wilson began his career as a process engineer at General Electric before moving into management consulting, where he spent 12 years solving operations problems that others had declared unsolvable. He joined Lumin to work on engagements where implementation depth matters as much as strategic insight. James leads the firm's operations practice, focusing on supply chain redesign, procurement transformation, and cost structure optimization. He has delivered measurable results across manufacturing, logistics, and professional services sectors. James holds a BS in Industrial Engineering from Georgia Tech and is a certified Six Sigma Black Belt. He serves on the advisory board of a regional manufacturing association dedicated to reshoring American production capability.

Growth Partner
Amy Thomas
Amy Thomas has spent 18 years helping companies grow faster and more efficiently. She began her career in investment banking at Goldman Sachs, then transitioned to operating roles as Chief Revenue Officer at two SaaS companies that achieved successful exits under her commercial leadership. At Lumin, Amy leads growth and go-to-market engagements, working with clients on pricing strategy, channel development, customer acquisition, and sales team structure. She is known for her ability to translate high-level growth ambitions into concrete quarterly plans that leadership teams can actually execute. Amy holds a BA in Economics from Yale and an MBA from Stanford GSB. She is a founding member of the Revenue Collective and speaks regularly on scalable growth and enterprise sales excellence.