- Front has reached $100 million in annual revenue and 8,000 customers, valued at $1.7 billion after raising $204 million in total funding.
- Mathilde Collin co-founded the company in Paris in 2013, moved it through Y Combinator in 2014, and led it as CEO for over a decade.
- Front became one of only 11 SaaS unicorns founded and led by a woman, with 80% of its executive team being female.
- Collin transitioned to Executive Chair in March 2024, handing the CEO role to Dan O’Connell to lead Front’s next phase of AI-driven growth.
Every company runs on conversations. Support tickets, partner emails, customer escalations — the threads that hold a business together all flow through an inbox. Front processes hundreds of millions of those messages every year for 8,000 companies, turning chaotic email threads into structured team workflows. The platform hit $100 million in annual revenue in 2025 and carries a $1.7 billion valuation.
The person who built it is Mathilde Collin, a French founder who arrived in San Francisco at 25 with no network, no confidence, and a product most investors didn’t understand. What she had instead was a relentless belief in discipline over vision — a philosophy that would define both the company and her leadership style for the next decade.
A Business Student in Paris Who Discovered SaaS by Accident
Collin grew up in France and enrolled at HEC Paris, one of Europe’s most selective business schools, where she completed a Master in Entrepreneurship in 2012. She had no technical background. She didn’t know what SaaS meant until after graduation.
Her first job was a one-year stint as a project manager at a small software company called Concord. The culture was terrible. But the experience planted two ideas: enterprise software was a massive market, and the way teams communicated internally was fundamentally broken.
She met Laurent Perrin, an engineer who shared her frustration with email. They started talking about what a collaborative inbox could look like — one where teams could assign, comment on, and track emails without forwarding chains or CC chaos. Perrin became her co-founder and first investor.
October 2013: A Shared Inbox Built in a Paris Apartment
Front launched in October 2013. The product was simple: a shared inbox that let teams manage customer-facing email addresses together, with internal comments, assignments, and analytics layered on top. No one was doing it well. Gmail was built for individuals. Helpdesk tools were clunky and impersonal.
The problem was traction. In France, convincing companies to entrust all their emails to a three-person startup with no track record was nearly impossible. Collin and Perrin applied to Y Combinator in 2014 and got accepted.
The move to Mountain View changed everything. At her first YC dinner, someone praised their product. Collin’s immediate reaction was disbelief.
”He must be confusing us with someone else. My confidence was that low.” — Mathilde Collin
She stayed anyway. The Bay Area’s ambition matched hers, and most of Front’s early customers were American. Paris could wait.
Discipline Over Vision: The Operating System That Scaled Front
Most founder stories center on a breakthrough idea or a pivotal pitch. Collin’s story centers on a habit. Every Monday at 10am, she sent her direct reports an email listing her goals for the week — not a task list, but a declaration of priorities that cascaded through the entire organization.
”I would choose discipline over some grand vision any day of the week. Sharing the good, the bad and the ugly provides accountability and a forcing function.” — Mathilde Collin
That discipline extended to fundraising. Collin published her Series C pitch deck publicly on Medium — a move almost unheard of in SaaS. She ran investor updates with radical transparency, sharing revenue numbers, churn rates, and failures alongside wins.
The approach worked. Front raised $59 million in a Series C led by high-profile angel investors, followed by a $65 million Series D in June 2022. Salesforce Ventures and Battery Ventures co-led the round, with Sequoia Capital, Threshold Ventures, and Uncork Capital participating. Total funding reached $204 million.
A Unicorn With a Different Leadership Profile
The Series D valued Front at $1.7 billion, making Collin one of only 11 women to found and lead a SaaS company at unicorn scale. The stat was striking not because of the number, but because of the company culture behind it. Eighty percent of Front’s executive team was female. Half of its managers were women.
Collin never treated this as a branding exercise. She built a company where transparency wasn’t a value statement on a wall — it was a weekly practice embedded into how every team operated. Front introduced “Flexible Fridays” in 2022, eliminating all meetings on Fridays company-wide. A year later, Collin reported that productivity had increased while burnout had dropped.
By 2024, Front had grown to 8,000 customers and was approaching $100 million in annual revenue. The platform had evolved from a shared inbox into a full customer operations suite, combining email, chat, SMS, and social media into a single workspace with AI-powered workflows.
March 2024: Stepping Back Without Stepping Away
In March 2024, Collin made the decision to step down as CEO and transition to Executive Chair. She appointed Dan O’Connell, previously CEO of Dialpad, to lead Front’s next phase of growth.
The move was deliberate, not reactive. Front was nearly break-even and growing steadily. Collin was candid about the toll of a decade at the helm — the intensity of balancing leadership, personal life, and the constant pressure of running a unicorn.
”After nearly a decade of running Front, I realized the intensity was hard to sustain. I wanted to make sure the company had the best leadership for its next chapter.” — Mathilde Collin
She didn’t disappear. As Executive Chair, Collin remains on the board and continues to shape Front’s long-term strategy. She also serves as a board member at Welcome to the Jungle, the French HR tech company.
What Comes Next for Front — and for Collin
Under O’Connell, Front is doubling down on AI. The platform now uses machine learning to auto-triage incoming messages, suggest responses, and surface customer sentiment across channels. The competitive landscape — Zendesk, HubSpot Service Hub, Intercom — is crowded, but Front’s bet is that teams still want human-first communication enhanced by AI, not replaced by it.
Collin built Front on a counterintuitive premise: that the oldest communication tool in tech — email — was also the most underserved. Thirteen years later, that bet is worth $1.7 billion. The inbox she reimagined in a Paris apartment now powers customer operations for thousands of companies worldwide. The founder who once thought a YC mentor had confused her with someone else became one of the rarest profiles in enterprise software — a woman who built a unicorn and chose to let it grow beyond her.
