Message Systems was a prominent software company specializing in high-performance email infrastructure and message management solutions. Their flagship product, Momentum, was a leading Message Transfer Agent (MTA) trusted by large enterprises, Email Service Providers (ESPs), and telecommunication companies worldwide for sending high volumes of legitimate email. The company offered both on-premise and cloud-based solutions, focusing on deliverability, scalability, and real-time analytics. Message Systems was acquired by SparkPost (formerly Port25) in 2015, and SparkPost was subsequently acquired by MessageBird in 2021. The technology and expertise from Message Systems formed a core part of SparkPost's offerings.
Global headquarters for research & development, engineering, product management, sales, marketing, and corporate operations for its email infrastructure software.
Likely a modern office space within a corporate park, designed to facilitate collaboration for software development and business teams. No specific widely publicized architectural features.
An engineering-driven culture focused on high-performance computing, innovation in messaging technology, and addressing complex customer needs. Emphasis on technical expertise and problem-solving.
The nerve center for developing and supporting the Momentum platform, which powered a significant portion of legitimate email traffic worldwide for major brands and ESPs.
Prior to its acquisition, Message Systems supported a global clientele, including major enterprises, ESPs, social networks, and telecommunication companies across North America, Europe, Asia-Pacific, and other regions. Its operations were supported by its headquarters in Maryland and key regional offices, ensuring worldwide sales, service, and support for its email infrastructure solutions.
9130 Guilford Road
Columbia
Maryland
USA
Address: [Specific address not publicly available, likely a sales/business development office]
To expand market presence in the tech-heavy West Coast region and foster strategic alliances.
Address: [Specific address not publicly available, likely a regional sales/support office]
To support and grow the customer base across the EMEA region, providing localized services.
Address: [Specific address not publicly available, likely a regional sales/support office]
To cater to the growing demand for email infrastructure solutions in the Asia-Pacific market.
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
As of April 2025, Message Systems' leadership includes:
Message Systems has been backed by several prominent investors over the years, including:
Message Systems was acquired by SparkPost in 2015/2016 and no longer operates as an independent entity. Therefore, there are no executive hires or exits directly attributable to 'Message Systems' in the last 12 months. The information below reflects key leadership transitions that occurred around the time of its acquisition.
Discover the tools Message Systems uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Common email formats at Message Systems, prior to its acquisition, likely followed standard corporate patterns such as [first_initial][last]@[companyname].com or [first].[last]@[companyname].com. The domain messagesystems.com is no longer actively used for email by the original company.
[first_initial][last]@messagesystems.com (e.g., jdoe@messagesystems.com) or [first].[last]@messagesystems.com (e.g., jane.doe@messagesystems.com)
Format
gschlossnagle@messagesystems.com
Example
0 (domain no longer active for original company's email purposes)%
Success rate
TechCrunch • September 29, 2015
SparkPost, an email delivery service for developers and enterprises, announced its acquisition of Message Systems, a leader in on-premise and cloud-based email infrastructure, including its flagship Momentum platform....more
Business Wire • September 13, 2011
Message Systems announced it secured $10 million in growth equity financing from NewSpring Capital. The funding was aimed at accelerating product development, expanding sales and marketing efforts, and supporting international growth....more
PR Newswire • February 26, 2013
Message Systems launched Message Central, a new solution designed to provide organizations with centralized visibility and control over their entire email infrastructure, including Message Systems' Momentum platform and other third-party MTAs....more
See where a company’s workforce is located, by country or region.
View past and recent funding rounds with amounts and investors.
Understand company revenue estimates and financial scale.
Track active roles and hiring trends to spot growth signals.
Discover what a company offers—products, platforms, and solutions.
Get the company’s official SIC and NAICS classifications.
Analyze visitor volume, engagement, and top traffic sources.
Explore LinkedIn, Twitter, and other active social profiles.
Identify top competitors based on similar business traits.
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
Thousands of companies, including Message Systems, are just a search away.