Mathieu Brillon

Fractional COO & SaaS Operations Leader

Turn growth chaos into
operational clarity.

I help B2B SaaS leaders scale customer success, align GTM systems, and deploy AI-driven operating models—without the overhead of a full-time executive hire.

✔ 50+ Enterprise Implementations ✔ GTM & RevOps Architecture ✔ Human-Centered Systems Design ✔ 20+ Years Operational Leadership
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How I Work

Three Ways to Engage

Whether you need embedded operational leadership, a focused architecture project, or strategic guidance—there’s a model designed for your stage and situation.

20+ Years in B2B SaaS Operations
50+ Enterprise CS Implementations
350K Target ARR per Employee
30-40% Avg. Efficiency Gain
Flagship Framework

The AI COO Playbook

A 30-initiative framework across 12 operational domains. Built for COOs and operators who want to scale revenue without scaling headcount linearly.

Phase 1 · 0-3 Months

Quick Wins

  • AI meeting & call summaries
  • AI proposal & RFP generation
  • AI ticket summarization
  • AI QBR generation
  • AI knowledge base assistant
Phase 2 · 3-6 Months

Operational Automation

  • AI SDR outbound
  • AI content generation
  • AI support chatbot
  • AI onboarding automation
  • AI pipeline forecasting
Phase 3 · 6-9 Months

Intelligence Layer

  • AI customer health scoring
  • AI revenue forecasting
  • AI pricing optimization
  • AI expansion detection
  • AI product analytics
Phase 4 · 9-12 Months

AI-Native Operations

  • AI customer success agents
  • AI autonomous support
  • AI internal copilots
  • AI workflow automation
  • AI product copilots
Discuss Your AI Roadmap
Mathieu Brillon
  • ◆ Former COO/CFO, illuxi Intelligence
  • ◆ GTM Strategy & Operations at UiPath
  • ◆ GTM Systems Architecture (Gainsight, Salesforce, HubSpot)
  • ◆ SOC2, data governance & compliance
  • ◆ Bilingual (EN/FR), based in Quebec, Canada
About

Built by an Operator,
for Operators

I'm Mathieu Brillon, founder of Embay Consulting. Over 20 years in B2B SaaS, I've held operational leadership roles at companies like UiPath, Absorb Software, and Valuize—designing and building the systems that make customer success, GTM, and operations actually scale.

My approach is rooted in systems thinking: bad data is a governance problem, not a tooling problem. Misaligned teams are a process problem, not a people problem. I bring both the strategic lens and the hands-on execution to fix what's broken and build what's missing.

Through Embay, I work as a fractional COO and transformation partner—embedded in your team, focused on outcomes, and designed to build lasting operational capability rather than consulting dependency.

LinkedIn
Proof of Work

What Operational Impact
Actually Looks Like

Real engagements. Anonymized by agreement. Results that speak to the depth of the work.

Enterprise SaaS · UiPath Ecosystem

GTM & CS Stack Integration

  • Integrated full GTM stack across CRM, CS platform, support, and product signals
  • Built scalable CS operations model for 200+ global enterprise accounts
  • Deployed AI-assisted QBR automation, reducing CSM prep time by 60%
Global SaaS Vendor · 50k+ Customers

Gainsight Architecture & Health Scoring

  • Led Gainsight implementation across 50,000+ customer accounts
  • Designed health score model integrating product, support, and financial signals
  • Built executive dashboard suite enabling data-driven renewal and expansion decisions
Mid-Stage SaaS · Series B

CS Org Build & Revenue Operations

  • Designed and built Customer Success org structure from the ground up
  • Implemented forecasting model and retention analytics framework
  • Reduced churn exposure through proactive health monitoring program
Ideal Fit

Who I Work With

The engagements where I deliver the most value—and where fit is clear from day one.

✓

Best Fit

  • B2B SaaS companies at $3M–$50M ARR
  • Founder-led or PE-backed companies scaling operations
  • Teams building or rebuilding Customer Success
  • Companies investing in RevOps or GTM systems
  • Orgs preparing for AI transformation
✕

Not a Fit

  • Pre-revenue or idea-stage startups
  • Pure strategy deliverables with no execution mandate
  • Short engagements under 3 months
  • Non-SaaS or B2C businesses
  • Companies not ready to invest in systems
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Insights

Thinking About Scale

Ideas on AI transformation, operational excellence, and building SaaS companies that scale without chaos.

AI Transformation

Why Your SaaS Company Doesn't Need More Headcount

The real lever isn't hiring. It's ARR per employee. Here's the AI operating model that changes the equation.

March 2026 · 6 min read
Customer Success

Customer Success Is a Revenue Engine, Not a Cost Center

Health scores, expansion signals, and lifecycle automation: how modern CS operations drive net revenue retention.

March 2026 · 7 min read
Operations

Bad Data Is a Governance Problem, Not a Tooling Problem

You don't need another dashboard. You need data discipline. A systems-thinking approach to SaaS data foundations.

March 2026 · 6 min read

Ready to Scale Without the Chaos?

Let's talk about where your operations, data, and teams could be in 12 months.

Book a Discovery Call
Get in Touch

Let's Start a Conversation

Whether you're exploring fractional leadership, AI transformation, or GTM optimization—I'd love to hear about what you're building.

Prefer a direct conversation?

LinkedIn

Embay Consulting

Location

Quebec, Canada

Availability

Currently accepting new engagements