Postmastery
Valuation
$3M
2025 Revenue
$990K
Funding
$0
Team
9
Founded
2012
How Postmastery CEO Maarten Oelering grew Postmastery to $990K revenue with a 9 person team in 2025.
Postmastery is dedicated to helping senders maximise their email performance and deliverability with a range of software, tooling and consulting solutions. Offering an all encompassing service to ensure senders can maximise performance and deliverability that includes vendor selection, MTA licensing, tuning, DMARC, training and the Postmastery Console – a powerful yet user-friendly suite of real-time monitoring tools. Postmastery global clientele includes email service providers (ESPs), marketing and advertising agencies, as well as e-commerce companies benefit from our vendor agnostic, independent approach that is cost conscious and looks to provide enterprise grade solutions at extremely competitive price points. Postmastery is a global channel partner for a variety of MTA vendors including PowerMTA, GreenArrow, Halon, KumoMTA and Postfix and provides integration services, local support and delivery optimization services.
Last updated
Postmastery Revenue
In 2025, Postmastery's revenue reached $990K. Since its launch in 2012, Postmastery has shown consistent revenue growth.
| Year | Milestone |
|---|---|
| 2025 | Postmastery Hit $990k revenue in July 2025 |
| 2012 | Launched with $0 revenue |
Postmastery Valuation, Funding Rounds
Postmastery's most recent disclosed valuation is $3M.
Postmastery is a bootstrapped Email Deliverability Tools startup. Founded in 2012, Postmastery has grown to $990K in revenue without raising any venture capital or outside funding.
As a self-funded Email Deliverability Tools SaaS company, Postmastery has built its business with no outside investment.
| Year | Round | Amount | Valuation | % Sold |
|---|
Postmastery Employees & Team Size
Postmastery employs approximately 9 people as of 2026.
Postmastery has 9 total employees in different roles and functions.
| Year | Milestone |
|---|---|
| 2025 | Reached 9 employees (July 2025) |
Founder / CEO
Q&A
| Question | Answer |
|---|---|
| What's your age? | - |
| Favorite online tool? | - |
| Favorite book? | - |
| Favorite CEO? | - |
| Advice for 20 year old self | - |
Customers
We do not have customer count information for Postmastery yet.
Frequently Asked Questions about Postmastery
What is Postmastery's revenue?
Postmastery generates $990K in revenue.
Who is the CEO of Postmastery?
The CEO of Postmastery is Maarten Oelering.
How much funding does Postmastery have?
Postmastery raised $0.
How many employees does Postmastery have?
Postmastery has 9 employees.
Where is Postmastery headquarters?
Postmastery is headquartered in Amsterdam-Duivendrecht, North Holland, Netherlands.
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Compare Postmastery to the industry
Postmastery operates across multiple industries. Browse revenue, funding, and growth data for Postmastery in each sector below.
Source Attribution
Source: all data was collected from GetLatka company research and founder interviews. Revenue, funding, team, and customer figures are presented as company-reported or GetLatka-estimated metrics where the profile data identifies them that way.
Company data last updated .