We exist to make business banking work the way it should have worked all along.
Founded in 2012 by two people who believed banking expertise and modern technology were not mutually exclusive. Today, 12 specialists manage $780 million in commercial assets for 1,400+ businesses across Southern Ontario.
We need to tell you something most banks would never admit: business banking, for most of its history, has been broken.
The people who understood banking did not understand technology. The people who understood technology did not understand banking. And the businesses caught in the middle — your businesses — paid the price in slow approvals, outdated platforms, and relationship managers who rotated every 18 months. You spent more time navigating your bank's bureaucracy than running your company. Credit decisions disappeared into black-box committees for weeks. Your "digital banking portal" looked like it was designed in 1998 — because it was.
In 2012, we decided to stop complaining about it and start fixing it.
THE FOUNDING
Marcus Thornbury spent 14 years in commercial lending at TD Bank, managing a $1.1 billion mid-market portfolio across Southern Ontario and the Greater Hamilton Area. He underwrote everything from $500K operating lines for third-generation family manufacturers to $40M acquisition facilities for regional logistics consolidators. He watched talented business owners — manufacturers, logistics operators, professional services firms, construction companies — get ground down by bureaucratic lending processes, 47-page application packages, and digital tools that hadn't been meaningfully updated since the early 2000s.
Elena Vasquez-Thornbury spent a decade in Silicon Valley building payment processing platforms at Stripe and a Series B startup called MerchPay, later acquired by Square for $87 million. She led engineering teams that processed $2.3 billion in annual transaction volume. She watched fintech companies build beautiful, intuitive technology with zero understanding of how real businesses manage cash flow, payroll cycles, seasonal inventory fluctuations, or multi-currency receivables. The technology was elegant, but the banking knowledge behind it was paper-thin.
They sat across from each other at their kitchen table in Mississauga and made a decision. Not in a boardroom. Not after a McKinsey engagement. Not during a strategic offsite at a resort hotel. At a kitchen table, with financial models sketched on the back of their daughter's school permission slip.
The thesis was simple: what if you combined 14 years of commercial lending judgment with a decade of enterprise payment platform engineering? What if the people building the technology and the people making credit decisions worked in the same office, shared the same priorities, and answered to the same clients?
Thornbury Banking Ltd. was incorporated in Ontario in September 2012. First office: 3452 Cawthra Road, Mississauga. Same address today. That is deliberate — we stay embedded in the regional business community we serve. We are not building a brand that floats above geography. We are building a bank that knows Mississauga's industrial corridors, Hamilton's manufacturing base, Oakville's professional services cluster, and Waterloo's technology ecosystem because we live and work inside them.
GROWTH
We opened with 23 business clients and a $4.2 million deposit book. Our first client was a Mississauga-based HVAC distribution company that had been waiting six weeks for a $250,000 operating line renewal at their previous bank. We approved it in nine days. That company is still a client today.
Today, we manage over $780 million in commercial assets for more than 1,400 active business clients across Southern Ontario. Our client retention rate is 97.3% across the trailing three fiscal years — the highest we are aware of among comparable institutions in our market. We did not achieve that number through inertia or switching costs. We achieved it by delivering service that makes switching unnecessary.
Our credit committee — three senior principals including Marcus, Priya Sharma, and David Okonkwo — reviews every significant facility personally. No facility above $2 million gets approved without Marcus reading the full package. Our digital platform, TBL Connect, was built from scratch in our Mississauga office by Elena's engineering team, not licensed from a vendor or white-labelled from a platform provider. Our relationship managers are senior commercial bankers with an average of 16 years of industry experience, not generalists juggling personal, small business, and wealth simultaneously.
WHAT WE ARE — AND WHAT WE ARE NOT
Here is what we are not. We are not a Big Five bank. We do not have 4,000 branches. We do not offer personal chequing accounts, credit cards, or wealth management products. We are not trying to be everything to everyone. We are 12 people.
Here is how we handle that: every person on our team is a specialist. No one is covering three roles while pretending to be an expert in all of them. When a client calls, they reach someone who can answer the question — not transfer the call to another department, not read from a script, not promise a callback that never comes. Our 10 service categories are designed around the actual needs of mid-market businesses: commercial lending, treasury management, trade finance, digital banking integration, and more.
We are a small team, so here is how we handle capacity: we accept new client relationships deliberately. Not every business is the right fit, and we say so honestly. Our minimum credit facility size is $100,000. Our core clients have revenues between $1 million and $50 million. If a business needs consumer banking products, a credit card rewards program, or a branch they can walk into on a Saturday afternoon, we are not the right partner — and we will tell them that directly.
If a $40 million distribution company needs nothing more than a basic operating account with no credit facility, we will tell them honestly they may be better served by a Big Five bank with a broader branch network. If a startup with $80,000 in annual revenue needs venture debt and a personal line of credit, we will refer them to someone more appropriate. We would rather turn away a prospect honestly than onboard a client we cannot serve exceptionally. Our transparent pricing structure reflects this focus — three tiers designed for businesses at different stages of complexity, with no hidden fees.
"Every year a client stays with Thornbury, our understanding of their business deepens, our service becomes more tailored, and the value we deliver accelerates. We call this compounding the relationship. Year one, we learn your business. Year three, we anticipate your needs. Year five, we are part of your strategic planning process."
When we started this company, we made a pact: if we ever stopped enjoying the work, we would shut it down. Fourteen years later, Marcus still signs every loan approval letter by hand with a vintage Montblanc fountain pen he bought with his first TD bonus. Elena still personally oversees every deployment cycle for TBL Connect and reviews every line of code that touches client financial data. The work still matters. The problems still challenge us. And the businesses we serve still teach us something new every quarter.
We would welcome the chance to show you what business banking looks like when it is built right. Start with a conversation — no applications, no commitments, no sales pitch.
— Marcus Thornbury & Elena Vasquez-Thornbury
Co-Founders, Thornbury Banking Ltd.
From First Conversation to Full Relationship in 5 Clear Steps
Most banks make onboarding feel like a maze. We designed a process that respects your time, keeps you informed at every stage, and gets your accounts live in weeks — not months.
14 Years of Building Something Different
From 23 clients and a single office on Cawthra Road to $780 million in commercial assets — here is every milestone that shaped who we are today.
12 Specialists. $780 Million in Expertise. Zero Generalists.
We are a distributed, remote-first team of 12 — senior specialists across commercial lending, technology, compliance, risk, and client operations. Every hire has been deliberate. We do not hire for headcount. We hire when a specific capability gap emerges and we find someone whose expertise is deep enough to justify the seat.
Our team members work from Mississauga, Oakville, Hamilton, Toronto, and Waterloo. We collaborate asynchronously using modern tools and meet in-person at our Cawthra Road office for weekly credit committee sessions, client meetings, and quarterly strategic reviews. The six senior leaders profiled below represent a combined 73 years of banking, technology, compliance, and finance experience.
Below our senior leadership team, six additional specialists handle client operations, systems administration, implementation coordination, and support — each with a minimum of eight years of industry experience. When you call Thornbury, you speak with someone who has seen your situation before.
The Numbers Behind the Relationship
We let our results speak, not our marketing. These figures are current as of fiscal year 2025.
Ready to See How Thornbury Works for Your Business?
Start with a 55-minute discovery conversation — no applications, no commitments, no fee. We will tell you honestly whether we are the right fit before you fill out a single form.
Or explore what our 1,400+ clients say about working with us, review our full service catalogue, or see our transparent pricing first.