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Customer Stories

Bloomfilter: Building the Financial Foundation for Exponential Growth

Julie Bevacqua
October 8, 2025
5 min read

Bloomfilter is a venture-backed, high-growth startup that helps enterprises improve AI efficiency with process data and governance. Like many startups moving fast, nearly every available dollar went to product development and their early financials weren’t designed with investors in mind. The books weren't telling the full story of the business, the numbers weren't audit-ready, and while the product vision was sharp, the financial foundation wasn’t yet built for a Series A raise. That’s where Function stepped in.

Starting with the Basics

Function was first brought on in a bookkeeping capacity, a focused engagement to help Bloomfilter get their records in order. But after just two months of meticulous, high-speed work, the leadership team saw what was possible. The books went from not representing the true activity of the business to clear, organized, and professional. They needed more sophisticated accounting systems and budgets in place to accommodate their growth.

That shift unlocked trust. Investors were impressed, and so was Bloomfilter’s CEO. The scope quickly expanded into a full fractional CFO engagement.

Quotation mark

“We went from having financials that worked for day-to-day operations to having a financial story that investors could believe in,” says Erik. “Function didn’t just fix our books—they helped us see our business through an investor’s eyes.”

Erik Severinghaus
Erik Severinghaus Co-CEO

From Bookkeeper to Strategic Partner

Function became more than a service provider, it became an extension of Bloomfilter’s leadership team. We:

  • Prepared financials to be audit-ready, ensuring that every figure could withstand investor scrutiny during the Series A process.
  • Built KPI dashboards and benchmarks to help leadership track growth, efficiency, and financial health against peers.
  • Took over AR, AP, and cash management, bringing discipline to day-to-day operations without slowing momentum.
  • Assisted with the investor data room and fundraising deck, so when the Series A conversations began, the financial story was already tight.
  • Led the Series A model development, creating detailed financial projections and scenarios to support the fundraising process.
  • Joined board meetings, providing strategic input and ensuring that financial clarity was always on the table.

What started as “let’s just clean up the books” turned into a partnership that helped Bloomfilter stand taller and move faster.

Meeting Everest-Level Expectations

Bloomfilter’s CEO, Erik Severinghaus, has literally climbed Mount Everest — and even wrote a book about the journey (you can find it here on Amazon). That fact alone speaks volumes about the culture he’s built at Bloomfilter: ambitious goals, relentless drive, and an ability to push through uncertainty with focus and determination.

That ambition set the tone for Function to work together. Deliverables needed to be fast, precise, and ready for the next stage. After all, Erik is a driver both on the mountain and in the CEO’s chair. Just as scaling a mountain requires careful planning, trustworthy gear, and a guide who’s been there before, fundraising requires financial systems, discipline, and a partner who knows how to navigate the challenges.

Function became that guide. We didn't just organize the numbers—we made sure they told the right story. We became more than a transactional partner; Erik leaned into our experience and deep thinking to help him navigate the Series A and plan for the future. We gave investors confidence, freed leadership to stay focused on product and growth, and positioned Bloomfilter to not just raise capital, but to use it wisely.

Quotation mark

“What I needed wasn’t just someone to close the books each month,” Erik reflects. “I needed a partner who could think strategically about where we’re going and help build the financial infrastructure to get us there. Function became that partner—someone I could turn to for more than just numbers.”

Erik Severinghaus
Erik Severinghaus Co-CEO

Ready for the Next Peak

As Bloomfilter begins to contemplate a Series A, the difference is clear. Their financials are no longer a liability; they are a strength. Their investors can see discipline behind the vision. And the leadership team has real-time visibility into their performance, supported by dashboards, benchmarks, and a CFO partner who could model different scenarios.

From basecamp bookkeeping to boardroom-level strategy, Function helped Bloomfilter climb its financial Everest — ensuring they had the foundation, the systems, and the story to keep scaling.

Frequently
asked
questions

What was Function’s role in supporting Bushel during their leadership transition?

Function provided strategic CFO-level guidance and embedded finance expertise during Bushel's transition from their outgoing controller to the new permanent CFO. They implemented structured financial systems and maintained investor confidence throughout the transition period.

How did Function help Bushel scale its finance operations?

Function implemented a streamlined KPI dashboard and redesigned Bushel's board reporting structure, giving leadership clear visibility into performance metrics and enabling more effective investor communication and decision-making.

How does Function ensure a smooth transition when handing off to full-time hires?

Function builds scalable systems and documents all processes from day one, so incoming finance leaders inherit well-structured operations with complete strategic context, enabling them to be effective immediately rather than spending months getting up to speed.

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