Overflow

Overflow

Donations platform for stocks and crypto

Overview

Overflow helps churches and nonprofits accept and manage donations of non-cash assets like stocks and cryptocurrency, alongside cash gifts, through a subscription-based financial technology platform. Donors can give via multiple channels (card, ACH, stock, crypto, and donor-advised funds), and Overflow processes these gifts while providing automated giving statements, live dashboards, and detailed donor and gift-status tracking. The platform focuses on reducing barriers to giving and offering low processing fees, aiming to stand out with a comprehensive, end-to-end solution for charitable fundraising. Overflow’s goal is to make generosity frictionless and to significantly increase charitable contributions by unlocking and simplifying the use of non-cash wealth, which makes up a large portion of global assets.

About Overflow

Simplify's Rating
Why Overflow is rated
B+
Rated B on Competitive Edge
Rated A on Growth Potential
Rated B on Differentiation

Industries

Data & Analytics

Enterprise Software

Fintech

Financial Services

Company Size

51-200

Company Stage

Series B

Total Funding

$30M

Headquarters

Palo Alto, California

Founded

2019

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Simplify's Take

What believers are saying

  • Series B closed February 2024 raised $20 million, totaling $33.5 million.
  • Overflow AI launched in May 2025, adding a new upsell for finance teams.
  • Overflow says churches average 12% higher giving after migration, strengthening sales claims.

What critics are saying

  • The Giving Block and other donor-management platforms can copy non-cash giving features quickly.
  • Overflow still depends on church adoption, and migration friction slows switching.
  • If stock and crypto donation volumes stall, fee revenue and platform expansion weaken.

What makes Overflow unique

  • Overflow bundles cash, stock, crypto, and DAF giving for churches.
  • Overflow AI, launched May 2025, gives church finance teams natural-language reporting.
  • Overflow counts 450-plus organizations, including Church of the Highlands and Warriors Foundation.

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Funding

Total Funding

$30M

Below

Industry Average

Funded Over

2 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Below Average

Industry standards

$35M
$30M
Patreon
$45M
Linktree
$65M
Substack
$100M
ClickUp

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

Paid Holidays

Parental Leave

401(k) Retirement Plan

Mental Health Support

Company Social Events

Hybrid Work Options

Remote Work Options

Stock Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
Business Wire
Feb 8th, 2024
Overflow Announces $20M Series B Led by Wesleyan Investment Foundation to Become the Comprehensive Financial Partner within the Faith Space

Overflow, a trailblazer in redefining generosity through innovative financial solutions, proudly announces the successful closure of its $20 million S

Finextra
Feb 7th, 2024
Charitable giving fintech Overflow raises $20m

Charitable giving fintech Overflow raises $20m.

Overflow
Oct 12th, 2021
Overflow receives financing of $10M in Series A

Overflow is excited to announce that Overflow has raised a $10 million Series A from a diverse group of investors to support Overflow as it continues to grow.

Natural Resources
Oct 8th, 2021
Naturalresources Shop partners with Overflow

Natural Resources has partnered with Overflow to make donating stock online quick, easy, and secure.

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