Mercury
Banking for ambitious companies
TL;DR: Banking for ambitious companies.
Key Metrics
Milestones
Pricing
Tech Stack
Timeline
2006
Immad Akhund begins startup career
2008
Akhund founds Heyzap (mobile ad network), accepted to Y Combinator
2013
Akhund first conceives idea for startup banking while frustrated at Heyzap's banking experience
2015
Heyzap acquired by Fyber for $45M — Akhund gains exit experience and capital
2015-2017
Akhund angel invests in 300+ startups, becomes part-time YC partner, learns fintech landscape
2017
Mercury founded by Immad Akhund (CEO), Max Tagher (CTO), Jason Zhang (COO) in San Francisco
2017
$5M seed round raised from ~60 angel investors
2017-06
Begins 4-month research sprint: 90 expert interviews with fintech founders, lawyers, investors
2017-10
Decides on sponsor bank model (vs independent charter) based on research findings
2017-11
Starts building product with 9-person team
2018
Initial bank sponsor partnership fails mid-development — forces complete product rebuild
2018
Rebuilds onboarding and payment experiences from scratch with new sponsor bank
2019-01
Shows MVP to ~100 founders — only 2 enthusiastic, but team proceeds with conviction
2019-04
Private alpha launch — 1,500 signups on day one
2019-04
Unknown customer deposits $1M within 4 days without speaking to anyone
2019-04
Justin Kan and Elad Gil tweet about Mercury, amplifying early awareness
2019-05
Founders personally handle all customer support — team overwhelmed by demand
2019-06
Hires first support team members after 2 months of founder-only support
2019-08
Reaches $1M ARR in approximately 4.5 months
2019
$20M Series A at $100M valuation from CRV, with ~100 investors total
2019-2020
Grows 30-40% month-over-month with no dedicated sales team
2020-03
COVID-19 pandemic hits — Mercury loses 60% of revenue in one month
2020-04
Rapid rebound: ecommerce surge and branch closures drive digital banking adoption
2020
Launches partnership program with VC firms, law firms, and accountants
2021-07
$120M Series B at $1.6B valuation — unicorn status achieved
2022
Achieves GAAP profitability — profitable every quarter going forward
2022
$50B annual transaction volume processed
2022
Evolve Bank & Trust issues surface — $200M deposits shift off Mercury-backed platforms
2023-01
Mercury now used by 50%+ of Y Combinator companies
2023-03
Silicon Valley Bank collapses — massive industry disruption
2023-03
Mercury Vault built over single weekend (Saturday design, Monday ship) — expanded FDIC insurance
2023-03
Captures $2B in new deposits within 5 days, ~20% of former SVB customers
2023
Surpasses 100K customers, $95B annual transaction volume
2023
$23M community round raised on Wefunder
2024
$500M revenue, $156B transaction volume, 97% YoY revenue growth
2024
Startups become less than 40% of customer base — ecommerce and VC funds grow as segments
2024-04
Launches Mercury Personal banking ($240/year, up to 5% APY, $5M FDIC insurance)
2024
Launches financial workflow tools: bill pay, invoicing, expense management, accounting automations
2025-03
$300M Series C at $3.5B valuation led by Sequoia Capital (Coatue, CRV, a16z, Spark Capital)
2025-05
CEO Immad Akhund launches $26M personal fund for early-stage founders
2025-09
$650M annualized revenue, 200K+ customers, 1,000+ employees
Distribution
Launches
Growth Story
Mercury was founded in 2017 by serial entrepreneur Immad Akhund (previously sold Heyzap for $45M) who identified that startup banking was decades behind other startup tools like Stripe and Gusto. After 90 expert interviews and 18 months of product development with a 9-person team, Mercury launched in April 2019 to immediate product-market fit: 1,500 day-one signups, a $1M deposit from a stranger in 4 days, and 40% month-over-month growth with no sales team. Mercury reached $1M ARR in 4.5 months and was profitable by 2022. The SVB collapse in March 2023 was a massive inflection point, with Mercury capturing $2B in deposits in 5 days. By 2025, Mercury serves 200K+ companies with $650M annualized revenue at a $3.5B valuation.
Key Insights
- →Waited 4 years from initial idea (2013) to founding (2017) — patience in timing was critical
- →90 expert interviews in 4 months before writing a single line of code
- →18-month product development with 9-person team — 'minimum delightful product' over MVP
- →60-person investor/advisor network blast at launch created initial distribution
- →60% of customer acquisition organic through word-of-mouth and ecosystem partnerships
- →Built partnerships with 500+ VC firms, law firms, and accountants as distribution channels
- →COVID crash (lost 60% revenue March 2020) became a growth catalyst as digital banking adoption surged
- →SVB collapse (March 2023) captured $2B deposits in 5 days — crisis preparedness as competitive advantage
- →Expanded from pure banking to full financial operating system (treasury, cards, debt, workflow tools)
- →Community investment via $23M Wefunder round turned customers into stakeholders
Challenges
- !Initial bank sponsor partnership failed mid-development, requiring complete product rebuild
- !Only 2 out of ~100 founders showed enthusiasm for the MVP pre-launch
- !Lost 60% of revenue overnight during COVID onset in March 2020
- !Regulatory scrutiny around partner bank relationships (Evolve Bank issues in 2022)
- !Partner bank dependency creates fragility — $200M deposits shifted off Mercury-backed platforms in late 2022
- !Customer graduation risk as established companies may migrate to larger banks
Target Audience
Startup founders, early-stage companies, ecommerce businesses, VC funds, and scaling companies seeking modern digital banking
Problem Solved
Traditional banks did not understand startup operations — unclear fees, rigid onboarding, branch-dependent workflows, and accounts getting frozen when startups received large funding deposits. Mercury provided a fully digital, founder-friendly banking experience with clean UX, multi-user permissions, and support for immigrant founders.