Teller

Teller

Real-time bank data API for developers

Overview

Teller provides a real-time bank data API for developers and businesses in fintech. It connects directly to banks via official APIs, avoiding slow, unreliable screen scraping to ensure faster, more accurate data retrieval. The product is accessed through a subscription-based API, where clients pay for a certain number of API calls per month and can scale usage as needed. Teller differentiates itself by offering direct bank integrations with high uptime and stable data, unlike competitors that rely on less stable methods. The goal is to deliver dependable, real-time banking data at scale to fintechs, financial institutions, and other businesses that need smooth integration with banking data.

About Teller

Simplify's Rating
Why Teller is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

Fintech

Financial Services

Company Size

11-50

Company Stage

Seed

Total Funding

$4M

Headquarters

London, United Kingdom

Founded

2019

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Simplify's Take

What believers are saying

  • July 2026 pricing includes 100 free live connections, easing developer adoption.
  • Same-day ACH fallback expands coverage when instant connections fail.
  • Payments and live balances support underwriting, making Teller sticky for fintech workflows.

What critics are saying

  • Plaid still touts 12,000+ institutions, dwarfing Teller's network reach.
  • Bank API access depends on partner banks; one revoked connection breaks coverage quickly.
  • A developer-first niche limits enterprise sales; a better-funded aggregator can commoditize Teller.

What makes Teller unique

  • Teller's direct bank connections avoid screen scraping, reducing brittle integration failures.
  • July 2026 docs show 7,000+ institutions and instant account connections.
  • Teller offers payments, balances, identity, and transactions through one API.

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Funding

Total Funding

$4M

Above

Industry Average

Funded Over

1 Rounds

Notable Investors:
Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Above Average

Industry standards

$3.3M
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood
$4M
Teller

Benefits

Stock Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

4%

1 year growth

-4%

2 year growth

4%
Fintech Global
Jan 28th, 2020
Banking API company Teller announce new $4m seed round to take...

Venture capital Lightspeed Ventures, Founders Fund and PayPal founder Max Levchin's SciFi VC have joined forces to back banking API provider Teller’s new

TechCrunch
Jan 27th, 2020
Teller raises $4M to take on Plaid in the U.S. by providing API access to bank accounts

“They’re idiots, they’re really naive,” is how Stevie Graham, the co-founder of fintech Teller, once described Open Banking Limited, the body charged with delivering open banking in the U.K. His view back in 2017 — which now looks somewhat prophetic — was that open banking wouldn’t be the competition driver it was hyped up to […]

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