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Startup Stories - Mixergy
Startup Stories - Mixergy•December 17, 2025

#2288 She had people do AI’s work

Helen Hastings founded Quanta, an AI-powered accounting software for software and services companies, by first having humans do the work of analyzing financial data, which helped her raise $20 million and develop a more efficient, AI-driven accounting platform that provides real-time financial insights.
Corporate Strategy
Startup Founders
Venture Capital
B2B SaaS Business
FinTech
Elad Gil
Patrick Collison
Helen Hastings

Summary Sections

  • Podcast Summary
  • Speakers
  • Key Takeaways
  • Statistics & Facts
  • Compelling StoriesPremium
  • Thought-Provoking QuotesPremium
  • Strategies & FrameworksPremium
  • Similar StrategiesPlus
  • Additional ContextPremium
  • Key Takeaways TablePlus
  • Critical AnalysisPlus
  • Books & Articles MentionedPlus
  • Products, Tools & Software MentionedPlus
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Podcast Summary

Helen Hastings, founder and CEO of Quanta, built her AI-powered accounting platform by first having humans perform the work that would eventually be automated. In this podcast, she reveals how she validated her idea to replace QuickBooks by shadowing bookkeepers and understanding their pain points firsthand. Hastings leveraged her background building financial ledgers at companies like Affirm to create a modern accounting system that provides real-time financial data instead of the traditional month-long delays.

  • Key themes include using human workers to prototype AI solutions, the critical importance of clean data architecture, and the strategic decision to focus only on software companies that could be fully automated rather than going horizontal across all business types.

Speakers

Helen Hastings

Helen Hastings is the founder and CEO of Quanta, an AI-powered accounting platform built for modern software and services companies. Before Quanta, she was a software engineer at Affirm for almost six years, specializing in building financial ledgers and systems of record, joining when the company had around 100 people and staying through their IPO and growth to over 2,000 employees. She's also worked at Google and NerdWallet, bringing deep fintech and infrastructure experience to solving accounting's hardest problems.

Key Takeaways

Use Humans to Prototype AI Solutions

Helen's most innovative strategy was having humans perform the work that AI would eventually automate. (00:25) This approach helped her understand exactly what needed to be automated and provided a bridge for customers who weren't ready to trust fully automated systems. By having humans read and categorize expenses, analyze vendor relationships, and process financial data, she could validate that the work could be systematized before building the technology. This "human in the loop" approach is particularly valuable in AI-era startups where you need to prove the concept works before investing heavily in automation.

Focus on Clean Data Architecture First

The foundation of Quanta's success lies in building clean, structured data storage before applying AI on top. (36:02) Helen emphasizes that "if you're taking ChatGPT and putting on messy data, you can only get garbage out if you put garbage in." Traditional accounting systems like QuickBooks allow users to make changes that break data integrity, but Quanta built redundant checks and continuous reconciliation from the ground up. This creates a reliable foundation that enables advanced AI analysis and real-time reporting.

Start Narrow, Then Expand Strategically

Rather than trying to serve all businesses like QuickBooks, Helen deliberately chose to only work with early-stage software companies that fit within their automation capabilities. (27:04) This meant saying no to many potential customers, including nonprofits and businesses with physical inventory. By focusing on companies that use modern financial tools like Stripe, Mercury, and Rippling, Quanta could achieve full automation and deliver exceptional service quality before expanding to other business models.

Validate Willingness to Pay Early and Often

Helen conducted extensive user research, reaching out cold on LinkedIn to finance managers and accounting professionals to understand their pain points and validate demand. (16:25) She emphasizes asking people if they're willing to pay for a solution, noting "I think it's essential to start a business." This validation helped her understand not just that the product would solve pain, but how customers would perceive it and what would drive them to actually purchase and switch from existing solutions.

Build Real-Time Financial Visibility

Traditional bookkeeping creates dangerous delays where businesses don't understand their finances until weeks or months later. (14:00) Helen discovered that companies often don't have their financial data ready until well into the following month, sometimes taking until the end of the next month to start processing. Quanta's real-time approach allows companies to make decisions on a day-to-day basis, which is particularly critical in the AI era where companies need to track volatile costs and usage-based pricing models.

Statistics & Facts

  1. Helen joined Affirm when it had around 100 people and stayed through its growth to over 2,000 people and IPO. (11:23) This experience building financial ledgers at scale gave her the technical foundation to understand what was needed to replace traditional accounting systems.
  2. Quanta raised $20 million in total funding, with a recent $15 million Series A led by Excel. (36:45) The company currently serves just under 100 customers, demonstrating solid traction in their focused market segment.
  3. Companies using traditional bookkeeping services often wait until well into the following month to receive their financial data, with some not getting October data until December when recording in early December. (14:40) This delay makes the financial information largely useless for decision-making in fast-moving startups.

Compelling Stories

Available with a Premium subscription

Thought-Provoking Quotes

Available with a Premium subscription

Strategies & Frameworks

Available with a Premium subscription

Similar Strategies

Available with a Plus subscription

Additional Context

Available with a Premium subscription

Key Takeaways Table

Available with a Plus subscription

Critical Analysis

Available with a Plus subscription

Books & Articles Mentioned

Available with a Plus subscription

Products, Tools & Software Mentioned

Available with a Plus subscription

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