AT A GLANCE

Grow Therapy
Stripe
2020
Founded
2010
New York, NY
HQ
San Francisco, California (& Dublin, Ireland)
$175M+
Total Raised
$8.7 Billion
Jake Cooper
Founder
Patrick & John Collison
Health Tech
Type
Fintech
Private (Series C)
Status
Private ($91B valuation)

FUNDING HISTORY

Grow Therapy

Seed2021
$5M raised
Series A2022
$25M raised
Series B2023
$75M raised
Series C2023
$88M raised$1.4B val.

Stripe

Seed2011
$2M raised$20M val.
Series A2012
$18M raised$100M val.
Series B2014
$80M raised$1.8B val.
Series C2016
$150M raised$9.2B val.
Series D2018
$245M raised$20.0B val.
Series E2019
$250M raised$35.0B val.
Series H2021
$600M raised$95.0B val.
Series I (Employee Tender)2023
$6.5B raised$50.0B val.
Secondary Sale2025
$1.0B raised$91.5B val.

BUSINESS MODEL

Grow Therapy

Two-sided marketplace for mental health. Therapists join Grow Therapy's network and the company handles insurance credentialing, claims billing, scheduling, and compliance.

In return, Grow Therapy takes a percentage of each session's insurance reimbursement. Patients search Grow Therapy's directory to find in-network therapists by specialty, insurance plan, and availability.

The therapist gets to focus on therapy. The patient gets affordable care.

Grow Therapy gets a cut for handling the business side. Everyone wins except the old credentialing companies that charged therapists thousands of dollars to do what Grow Therapy does for free.

Stripe

Stripe charges a flat 2.9% + $0.30 per transaction. That's it.

No setup fees, no monthly fees, no hidden charges. The simplicity is the product.

When a customer pays on a website using Stripe, Stripe handles everything — fraud detection, currency conversion, bank transfers, tax calculation, compliance. The merchant just sees money arrive in their account.

On top of the core payments, Stripe has built an entire financial infrastructure stack. Billing for subscriptions, Connect for marketplace payments, Atlas for incorporating a company, Issuing for creating virtual cards, Treasury for banking-as-a-service, and Radar for fraud prevention.

They're basically building the financial plumbing for the entire internet.

HOW THEY STARTED

Grow Therapy

Jake Cooper was working in healthcare operations when he saw the same problem from both sides. Patients couldn't find therapists who accepted their insurance.

Therapists wanted to accept insurance but the credentialing process took 6 to 12 months and the billing was a bureaucratic disaster. Most therapists just went cash-pay to avoid the headache, which meant only people who could afford $200 a session got care.

Cooper started Grow Therapy in 2020 to solve the plumbing problem. Not the clinical side — the administrative infrastructure that makes it possible for a therapist to see an insured patient without losing their mind.

He launched right as the pandemic made therapy demand explode and supply couldn't keep up.

Stripe

Patrick Collison was 19. His brother John was 17.

They had already built and sold a company — Auctomatic, an eBay auction tool — for $5 million while still teenagers in Limerick, Ireland. Patrick went to MIT, John went to Harvard, and they both dropped out because they had a better idea.

The idea was embarrassingly obvious in hindsight. In 2010, accepting payments on the internet was a nightmare.

You had to get a merchant account, negotiate with a payment processor, deal with a gateway provider, handle PCI compliance, and write thousands of lines of code. It took weeks or months.

The Collisons thought it should take five minutes.

They built a simple API — seven lines of code — that let any developer start accepting credit card payments immediately. No merchant account.

No paperwork. No phone calls with banks.

Just paste seven lines of code and you're in business. They originally called it /dev/payments, then changed it to Stripe in 2011.

Peter Thiel and Elon Musk — the PayPal mafia — were among the first investors. Sequoia and Andreessen Horowitz piled in soon after.

The Collisons had built exactly what every developer on Earth had been wishing for.

HOW THEY GREW

Grow Therapy

Supply-side acquisition — recruit therapists by solving their biggest pain point (insurance credentialing) for free. Once therapists are in-network through Grow Therapy, patients find them through the directory.

The company expanded insurance partnerships aggressively, getting in-network with Aetna, Cigna, UnitedHealthcare, Anthem, and dozens of regional plans. State-by-state expansion tracking licensing requirements.

Content marketing targeting therapists frustrated with private practice admin. Referral loops from satisfied therapists bringing colleagues onto the platform.

Stripe

Stripe grew almost entirely through developer love. They didn't hire a sales team for years.

They didn't run ads. They just built the best developer documentation anyone had ever seen and let word of mouth do the rest.

The developer-first strategy was deliberate. The Collisons realized that in a startup, the developer usually decides which payment provider to use.

If you make the developer happy, you win the company. Stripe's API documentation became legendary — clear, beautiful, with working code examples in every language.

They also grew by growing with their customers. Early Stripe customers included tiny startups that later became giants — Lyft, DoorDash, Instacart, Shopify.

As those companies scaled to billions in revenue, Stripe's processing volume scaled with them. Stripe didn't need to acquire new customers because its existing ones kept getting bigger.

The international expansion was methodical. Instead of launching everywhere at once like Uber, Stripe carefully added country after country, making sure each one worked perfectly with local payment methods, currencies, and regulations.

By 2024 they were processing payments in 195 countries.

THE HARD PART

Grow Therapy

Insurance reimbursement rates for therapy are low and getting lower in some states. Grow Therapy's margin depends on volume because per-session economics are thin.

Keeping therapists on the platform once they're credentialed is a retention challenge — some therapists use Grow Therapy to get credentialed, then leave to handle billing themselves. Competition from Headway, Alma, and others doing similar things means the race to sign up therapists is intense.

Quality control across 10,000+ providers is a real concern. And the fundamental tension remains: insurance companies want to pay less per session, therapists need to earn enough to survive, and Grow Therapy sits in the middle trying to make both sides happy.

Stripe

Valuation whiplash. In 2021, Stripe hit a peak valuation of $95 billion during the fintech boom.

By 2023, they had to mark it down to $50 billion during the tech correction — a 47% drop that made headlines everywhere. Employees who had been paper millionaires suddenly weren't.

The valuation has since recovered to $91 billion after a secondary share sale in 2025, but those two years were rough for morale.

Competition is relentless. Adyen, the Dutch payments company, has been eating into Stripe's enterprise market.

Square (now Block) competes on the small business side. PayPal is everywhere.

New fintech players pop up constantly. The payments business has razor-thin margins and everyone is fighting for the same 2.9%.

Going public is the elephant in the room. Stripe has been expected to IPO for years.

Investors, employees, and the media keep asking when. The Collisons have consistently said they're in no rush, but with $8.7 billion raised and thousands of employees holding stock options, the pressure to provide liquidity is enormous.

As of 2025, they've opted for secondary sales instead of a public offering.

THE PRODUCTS

Grow Therapy

Insurance credentialing — gets therapists paneled with major insurers in weeks instead of months. Automated billing and claims processing that eliminates the denied-claim nightmare.

A patient-facing directory with filters for insurance, specialty, location, and availability. Practice management tools including scheduling, intake forms, and session notes.

Telehealth platform built in so therapists don't need separate video software. Group practice support for therapists who want to scale beyond solo practice.

Stripe

Stripe Payments is the core — accept credit cards, debit cards, Apple Pay, Google Pay, and 135+ payment methods in 195 countries. Stripe Connect lets marketplaces and platforms pay out to sellers (Shopify, Lyft, DoorDash all use it).

Stripe Billing handles subscription and recurring billing. Stripe Atlas lets you incorporate a US company from anywhere in the world — fill out a form, get a Delaware C-corp, bank account, and tax ID in days.

Stripe Radar uses machine learning to block fraud in real time. Stripe Treasury lets platforms offer banking services to their customers.

Stripe Tax automatically calculates and collects sales tax in every jurisdiction.

WHO BACKED THEM

Grow Therapy

Investors include Sequoia Capital, TCV, Signalfire, and SVB Capital. Series C in 2023 valued the company at over $1 billion.

Stripe

Peter Thiel, Elon Musk, Sequoia Capital, Andreessen Horowitz, General Catalyst, Founders Fund, Tiger Global, GV (Google Ventures), Goldman Sachs, Baillie Gifford

MORE COMPARISONS