THE FOUNDER FILE
● WYE YEW HO / PROXIMITTY / YC W26COMMERCIAL LENDING, WITH TIME FOR PEOPLE● SAN FRANCISCOWYE YEW HO / PROXIMITTY / YC W26

People / Banking & the business of trust

Wye Yew Ho and the value of a familiar face

After months of searching for a cofounder, Wye Yew Ho found one in his own apartment building. Now the Proximitty CEO is bringing that same faith in relationships to commercial lending.

Wye Yew Ho had gone looking for a cofounder through a programme designed to help people find one. Months later, the person he would build with turned up in his apartment building. An old friend, Zi Zhang, had become his new neighbour. They spent an evening coworking. The following morning, Zhang asked Ho to join him as a cofounder. The search had required plenty of introductions. The decisive one required recognising somebody he already knew.

Today, Ho is the co-founder and CEO of Proximitty, a San Francisco company building AI agents for commercial lending. His work concerns documents, financial analysis and the operational labour behind a loan. Yet the personal story that brought him here keeps returning to a different subject: who takes a chance on whom. An acquaintance at dinner. A friend with a spare vote of confidence. A banker willing to explain how the job actually works.

A promise over wine

Ho dates his decision to become a founder to a McKinsey reunion in December 2024. Everyone else at the wine night happened to be a founder. William Lee, Lin Loke and Moniem Abdu encouraged him; he promised he would try. In March 2025, he left his job and joined Entrepreneur First. By May, he had worked through eight team pairings and ten ideas without finding the right match.

That summer, he taught himself to code and attended hackathons. His mother suggested a stable job. Then came the August encounter with Zhang. By November, the pair were raising money and facing repeated refusals. Y Combinator invited them to interview and made an offer the next day. In December, they moved from London to the Bay Area. Ho later described having been about a month from running out of money when the offer arrived.

A group gathered around a laptop on a kitchen counter in a candid photograph shared by Wye Yew Ho
A laptop, a kitchen counter and plenty of company. The candid photograph Ho shared with his founding account.

The ticket he could not buy

Another moment in the partnership involved a conference ticket. Ho wanted to attend Money 20/20, but paying for the trip would bring his personal finances uncomfortably close to the edge. He initially argued for concentrating on the UK market. In his telling, the objection concealed a simpler and harder thing to say: he could not afford to go.

He linked that reluctance to his upbringing in a Malaysian family where admitting financial difficulty felt shameful. Eventually, he explained the situation. Zhang offered to pay for the ticket. Ho remembers his cofounder expressing confidence in his ability to close deals and change the company’s trajectory. The trip helped bring design partners and became part of the fundraising effort that ended with a YC offer.

“I trust your ability to close deals and change our trajectory.”

Zi Zhang, as recalled by Wye Yew Ho

The offer was unusually specific. Zhang believed Ho could do something useful in a room full of potential customers, and supplied the means to get him there. Confidence acquired a receipt. For a founder whose contribution had been questioned because he was not technical, that gesture gave an answer with a destination attached.

The numbers before the startup

Ho’s earlier career gave him reasons to understand financial institutions from several angles. He studied economics at the London School of Economics and Political Science between 2018 and 2021. He then worked at McKinsey, advising banks and fintechs on risk strategy, before moving into growth and financial crime work at Taptap Send.

Proximitty describes his Taptap Send period with a revenue marker: $75 million to $200 million in annual recurring revenue. That is a company growth figure attached to his operating experience. It provides context for the scale of the business he worked in, without turning a team’s progress into a solo achievement.

There is an earlier numerical distinction, too. Proximitty says Ho placed in the top three at the 2018 World Mathematics Championships, the first Malaysian to do so. The result sits alongside an economics education and a banking career. It is tempting to draw a straight line through all three. His founding year makes that line look rather less straight: competitive results come with rankings; finding a collaborator comes with conversations that can end without a score.

2018-21LSE
Economics
2021-23McKinsey
Risk strategy
2023-25Taptap Send
Growth & FinCrime
2026Proximitty
YC Winter batch

A student willing to show the day

In 2019, Ho was one of five students who took over the LSE Economics department’s Instagram account for a week of student perspectives. He was a first-year BSc student, inviting viewers into his university life and his role in the Economics Society. Before the customer visits and company announcements, there was a young economist offering a tour of the day.

The detail is small enough to be useful. A professional biography tends to make a life resemble a set of approved destinations. The student takeover records an intermediate moment, when Ho was still exploring what a course and a city could offer. It also puts a person into a career otherwise described through institutions. LSE is an education on a résumé; somebody taking the department’s audience along for a look is a more recognisable scene.

Listening at bank speed

At the end of YC’s Winter 2026 programme, Ho reported that Proximitty’s idea had been raw in late January. Over the following six weeks, he said, the team travelled across the country, spoke with more than 200 bankers and signed banks and publicly traded fintechs as early customers. The figure measures conversations, an activity that rarely looks impressive in a product screenshot.

He thanked Diana Hu and Vivian Midha Shen for advice and support, and singled out Ash Rust as an early believer. Zhang received a more personal acknowledgement: admiration for the effort he brought to the partnership. Ho’s account of progress has room for people who offered advice as well as people who bought something.

200+banker conversations in six weeks
Reported by Ho in his YC wrap-up

Later, Ho wrote about visiting community-bank operating executives and seeing their responses to demonstrations. In one account, he relayed a customer’s description of work falling from eight hours per commercial account to twenty minutes. It is a reported customer experience, rather than a universal promise. Its appeal is easy to understand: a demonstration becomes interesting when somebody recognises a piece of their own working day inside it.

The paperwork has a point

Proximitty’s current product covers document collection, financial spreading, covenant monitoring and loan operations. Financial spreading means putting information from a borrower’s statements into a form a lender can analyse. Covenant monitoring tracks the obligations attached to a loan. These are consequential jobs with names that have little prospect of appearing on a festival poster.

Ho has argued publicly that manual data entry is a central problem in lending. He points to the work of reconciling rent rolls, moving borrower documents into banking systems and handling financial statements. His interest is in the repeated handling of information before a lending team can use it.

01Borrower
documents
02Financial
analysis
03Ongoing
monitoring
The work behind a loan: a simplified view of the tasks Proximitty describes automating.

For Ho, the desired outcome reaches beyond a tidier back office. In a post about meeting bankers, he said Proximitty saves loan officers twenty hours a week on manual underwriting, document ingestion and spreading. That is his stated result. The purpose he attaches to it is time for commercial clients. His argument asks readers to think about the person who gets the recovered hours, and what that person can do with them.

Ten seconds to earn a hearing

Ho and Zhang approached Flow with a concise design question: how could a new brand earn a chief credit officer’s trust within the first ten seconds? The studio answered with muted colours, familiar office scenes and tree-inspired imagery. James Wu, its creative director, described a visual identity intended to feel stable and approachable while remaining modern.

The question suits a founder selling into banking. A prospective customer has to decide whether a young supplier understands the seriousness of the work before getting very far into the demonstration. A website cannot prove that software will behave properly. It can show whether the people presenting it have thought carefully about the audience.

Flow’s case study says the new identity generated inbound leads and helped Proximitty win a request for proposals against a Series B competitor. That is the team’s account of the result. The more revealing part of the exercise is the brief: Ho and Zhang chose to begin with the credit officer’s first impression. A conversation needs an opening, even when the eventual subject is a financial statement.

A birthday spent building

Ho has offered a modest personal illustration of that preference for working alongside customers. He celebrated a birthday by shipping features in person with potential clients. He described the satisfaction of watching a product solve a real problem while being able to work through it together. The account has the sort of specificity that a declaration of passion usually lacks: a day, a visit and something to fix.

In May 2026, he and Zhang presented Proximitty at FinovateSpring in San Diego. By July, he was advertising a San Francisco engineering role. His ambition now includes expanding the team behind commercial underwriting agents. The recruitment brief puts customer empathy, pragmatism, feedback and direct conversations among the company’s working expectations.

“My favourite part of building a startup is the people,” Ho wrote. The phrase finds support in the details: his neighbour becoming his cofounder, a difficult conversation making a trip possible, and days spent asking bankers about their work. The software is meant to save time. The founder’s story suggests what he thinks time is for. Somebody has to be available for the next conversation.