MongoDB Co-Founder Eliot Horowitz on Building a $14B Company

Lessons from MongoDB co-founder Eliot Horowitz on starting in a downturn, achieving product-market fit, and the real reasons to take your company public.

Quick facts: Eliot Horowitz

Company
Viam
Role
Founder, Viam

Eliot Horowitz is profiled here for how the company was funded — the rounds raised, who backed them, and what the process looked like from the founder's side.

Eliot Horowitz, co-founder of MongoDB, provides a masterclass in building a category-defining company. His journey reveals the hidden advantages of starting in a recession, the power of building a tool so good others have to write about it, and the strategic, non-obvious reasons for an IPO beyond just capital. Now on his third venture, a robotics company, his experience shows how foundational systems for hiring and execution become second nature, freeing you to focus on the unique challenges of your business.

Key takeaways

From a $14B IPO to a New $42M Bet on Robotics

Eliot Horowitz is on his third startup. His first, ShopWiki, sold. His second, MongoDB, grew into a $14B public company. Now he's raised $42M for Viam, a new robotics venture. Most founders would kill for one of those outcomes.

When you're on your third major venture, the "startup" part gets easier. Not the core challenge of building something people want, but the mechanics of running the business. You've already built the playbooks for hiring, running meetings, and setting goals. These tasks, which consume a first-time founder's every waking hour, become second nature. You don't waste time reinventing the wheel; you focus your energy on your unique problem.

Horowitz's journey offers a masterclass in building a generational company. Let's deconstruct the non-obvious lessons you can apply to your own startup.

The Myth of the Bad Time to Start: Launching MongoDB in 2008

MongoDB launched version 0.8 just as the 2008 Great Recession was hitting. Conventional wisdom says this is the worst possible time to start a company. The reality is more nuanced. While capital was tight, everything else was easier.

Your New Hiring Playbook

During a boom, you’re competing with Google’s salary offers and lavish perks. In a downturn, the talent market shifts dramatically in your favor.

Access to senior talent: Layoffs at larger companies mean experienced engineers, product managers, and sales leaders suddenly become available. These are people you likely couldn't afford or attract otherwise. · Lower salary expectations: Cash is king for a startup. In a recession, market-rate salaries drop, and candidates are often more willing to trade a portion of cash compensation for a larger equity stake. A senior engineer who might cost $250k in a hot market could be a hire at $190k plus equity. · Mission-driven filtering: When jobs are plentiful, candidates optimize for compensation. When they are scarce, the people joining your risky, unknown venture are the true believers who are passionate about the problem you're solving.

The Recession Sales Pitch

MongoDB wasn't selling a "nice-to-have" growth tool; it was selling efficiency and cost savings. Their customers—developers—were hungry for ways to build faster and cheaper. This is the single most powerful sales angle in a recession.

Instead of pitching features, you must pitch outcomes. Your messaging should be built around one of two themes:

"We save you money." (e.g., "Switch to our platform and cut your infrastructure spend by 40%.") · "We make your team more efficient." (e.g., "Our tool helps your existing developers ship twice as fast, deferring the need for new hires.")

Your Unfair Structural Advantages

Beyond hiring and sales, recessions create other opportunities. Office space is cheaper and landlords are more flexible. There’s less competition for press and customer attention because the market isn’t flooded with well-funded "me-too" startups. Every dollar of marketing you spend goes further.

The $14B Blog Post: Engineering Serendipity

MongoDB was not an overnight success. After launching, they had just two customers. The inflection point wasn't a clever marketing campaign or a massive ad spend. It was a blog post.

An early user wrote a technical review of the product. It was authentic, detailed, and solved a real problem he was facing. That single post did more for their growth than anything else. Why?

The lesson isn't "get lucky." It's that you need to build a product so good that it inspires evangelism. For developer tools, this is the entire game. Developers hate being marketed to, but they love discovering new tools that solve their hair-on-fire problems. Horowitz and his co-founder built MongoDB because it was a database they wanted to use. They were solving their own problem.

Is Your Product "Blog-Post-Worthy"?

Before you spend a dollar on marketing, ask yourself these questions:

Does it solve a painful, recurring problem? Not a minor inconvenience, but a genuine workflow blocker. · Is the "time to magic" less than 15 minutes? Can a new user sign up and experience the core value proposition almost instantly? · Is the product opinionated? Does it have a clear point of view on how something should be done, even if it's not for everyone? · Is there a clear "enemy"? For MongoDB, the enemy was the complexity and rigidity of traditional relational databases. A clear enemy gives your community something to rally around.

The blog post wasn't luck; it was a symptom of a great product. It served as the catalyst that sparked a vibrant community, leading to sold-out conferences and the developer mindshare that every technical founder dreams of.

Demystifying the IPO: It’s Not About the Money

MongoDB raised nearly $300M in venture capital before going public. They didn't need the money from an IPO in the traditional sense. So why do it?

For a company like MongoDB, an IPO is the single biggest marketing event you will ever have. It’s a declaration that you are a stable, credible, and permanent fixture in the industry.

Enterprise Credibility: Large corporations are hesitant to bet on technology from private startups that might be gone in a year. The transparency and regulatory oversight of being a public company de-risks the decision for a CIO at a Fortune 500 company. An IPO unlocks the enterprise sales motion. · Global Visibility: The day you IPO, your company is on every major financial news terminal in the world. It provides a level of legitimacy and free advertising that is impossible to buy. · Acquisition Currency: Publicly traded stock is a powerful currency for acquiring other companies. It’s often easier and more attractive for a target company to accept liquid stock than the illiquid paper of a private acquirer. · Talent Retention & Attraction: An IPO provides liquidity for employees who have held stock options for years, which can be a major morale and retention boost. It also makes your equity grants more attractive to new senior hires who want to see a clear path to a financial outcome.

How to Apply These Lessons This Week

You may not be building the next MongoDB, but the principles are universal. Here’s how you can act on these insights right now.

Re-read your sales emails. Do they talk about features, or do they scream "I will save you money" or "I will save you time"? In this economy, that's the only message that matters. Rewrite your primary outreach template to lead with the economic outcome. · Map your "Time to Magic." Create an account for your own product as if you were a brand new user. How many minutes does it take to experience the core value? Your single most important product goal should be to drive that number as close to zero as possible. · Identify your evangelists. Who are your 10 most passionate users? The ones who file detailed bug reports or post in your community Slack at 2 AM? Reach out to them personally this week. Don't ask for anything—just thank them and ask what they’re working on. These are the people who will write your $14B blog post. · Systematize one process. Pick one thing you do repeatedly—interviewing a new engineer, running your weekly all-hands, onboarding a new customer—and write down a simple, 5-step checklist for it. You don't need fancy software. Just a document that makes the process repeatable. This is how you start building the "third-time founder" muscle.

Frequently asked questions

What advantages did Eliot Horowitz find starting MongoDB during the 2008 recession?
He found that hiring was easier and cheaper, real estate was more affordable, and there was less competition. Customers were also highly motivated to find solutions that saved them money and improved developer efficiency.
How did MongoDB get its first customers?
MongoDB initially struggled with just two customers after launching. Its growth ignited after a single, influential blog post by an early user praised the technology, which catalyzed community engagement and widespread adoption.
Why did MongoDB go public if it had already raised $300M?
For MongoDB, the IPO was a strategic move for visibility and credibility, especially with large enterprise customers. It served as a powerful marketing event that legitimized the company on a global scale, rather than just being a fundraising necessity.
What is Eliot Horowitz's new robotics startup?
Horowitz has raised $42 million for a new venture that provides technology to fuel the next generation of robotics startups. The specific company, Viam, aims to solve hard-rised robotics problems, much like MongoDB solved a common database problem for developers.

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