Payment Works
Boston, US · Founded 2013 · Delaware corporation · 1 known investors
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PaymentWorks provides a vendor management system that automates the entire vendor lifecycle, including onboarding, compliance verification, and payments. The platform serves businesses and enterprises seeking to reduce manual processes, mitigate vendor risk, and streamline vendor payment operations.
Founders & leadership
Payment Works was founded in 2013 by Thayer Stewart.

Board
Investors · 1
Reported raises · per SEC filings
Form D private placements$41.6M disclosed across 7 rounds · 2014–2023
▶$12MraisedMar 2025 · 56 investors · Other TechnologyRule 506(b)
- Seth Thayer StewartExecutive Officer, Director
- Jay Clinton RisingDirector
- Peter C. GeorgiopoulosDirector
- Jeffrey SloanDirector
- Alan GreenblattDirector
- Offering amount
- $17M
- Amount sold
- $12M
- First sale
- Dec 2023
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$5.4MraisedJun 2022 · 20 investors · Other TechnologyRule 506(b)
- Peter GeorgiopoulosDirector
- Jay C. RisingDirector
- Alan GreenblattDirector
- Seth Thayer StewartExecutive Officer, Director
- Offering amount
- $17M
- Amount sold
- $5.4M
- First sale
- May 2022
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$3.5MraisedAug 2021 · 34 investors · Other TechnologyRule 506(b)
- Alan GreenblattDirector
- Peter GeorgiopoulosDirector
- Jay Clinton RisingDirector
- Seth Thayer StewartExecutive Officer, Director
- Offering amount
- $8.5M
- Amount sold
- $3.5M
- First sale
- Jul 2021
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.8MraisedMay 2020 · 27 investors · Other TechnologyRule 506(b)
- Seth Thayer StewartExecutive Officer, Director
- Peter GeorgiopoulosDirector
- Jay Clinton RIsingDirector
- Alan GreenblattDirector
- Offering amount
- $4M
- Amount sold
- $1.8M
- First sale
- Apr 2020
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$14.5MraisedJul 2019 · 82 investors · Other TechnologyRule 506(b)
- Seth Thayer StewartExecutive Officer, Director
- Alan GreenblattDirector
- Jay Clinton RisingDirector
- Peter GeorgiopoulosDirector
- Offering amount
- $15.4M
- Amount sold
- $14.5M
- First sale
- Jun 2018
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$2.5MraisedJun 2016 · 21 investors · Other TechnologyRule 506(b)
- Thayer StewartExecutive Officer, Director
- Alan GreenblattDirector
- Offering amount
- $5M
- Amount sold
- $2.5M
- Proceeds to insiders
- $750K
- First sale
- May 2016
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
▶$1.9MraisedNov 2014 · 22 investors · Other TechnologyRule 506(b)
- Thayer StewartExecutive Officer, Director
- Alan GreenblattDirector
- Offering amount
- $2.2M
- Amount sold
- $1.9M
- First sale
- Jun 2014
- Incorporated
- Corporation, Delaware, 2013
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
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Companies working in the same space as Payment Works.
Frequently asked questions
- What does Payment Works do?
- PaymentWorks provides a vendor management system that automates the entire vendor lifecycle, including onboarding, compliance verification, and payments. The platform serves businesses and enterprises seeking to reduce manual processes, mitigate vendor risk, and streamline vendor payment operations.
- Who founded Payment Works?
- Payment Works was founded by Thayer Stewart in 2013.
- Who are Payment Works's investors?
- Payment Works's investors include UNCOMMON DENOMINATOR.
- How much funding has Payment Works raised?
- Payment Works has disclosed $41.6M raised across 7 rounds.
- Where is Payment Works headquartered?
- Payment Works is headquartered in Boston, US.







