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Exclaimer

Centralized email signature management platform

Overview

Exclaimer provides email signature management software that centralizes the creation and deployment of standardized signatures across Microsoft 365, Microsoft Exchange, and Google Workspace. IT teams configure signatures in a centralized platform, and the system automatically applies them to all outbound messages using templates, directory synchronization with Azure AD and Google Directory, RBAC, analytics, and branded meeting backgrounds. It differentiates itself through centralized, rule-free deployment across major platforms, deep directory integration, a large template library, and a long track record since 2001. Its goal is to help organizations maintain consistent brand presentation in email, streamline IT management of signatures, and enable marketing and HR teams to use signatures for campaigns and communications.

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About Exclaimer

Simplify's Rating
Why Exclaimer is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & AnalyticsEnterprise Software

Company Size

201-500

Company Stage

Growth Equity (Venture Capital)

Total Funding

$163M

Headquarters

Farnborough, United Kingdom

Founded

2001

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What believers are saying

  • Partners deliver about 30% of ARR, and Exclaimer has 5,000 global partners.
  • Exclaimer approached $100 million ARR in January 2026, showing strong commercial momentum.
  • Revelio Labs shows 370 employees in March 2026, with headcount still growing.

What critics are saying

  • CodeTwo, WiseStamp, and Letsignit advertise cheaper alternatives, pressuring Exclaimer's pricing power.
  • Exclaimer's August 2026 MSP reset admits prior partner tooling failed usability and billing needs.
  • Signature software stays a feature, not a category, risking displacement inside Microsoft or Google.

What makes Exclaimer unique

  • Exclaimer's 2026 Workday and UKG Ready integrations tie signatures to HR systems.
  • MSP Connect, launched August 19, 2026, targets multi-tenant MSP workflows and consumption billing.
  • The platform spans Microsoft 365, Google Workspace, and Exchange across 75,000 organizations.

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Funding

Total Funding

$163M

Above

Industry Average

Funded Over

2 Rounds

Notable Investors:
Growth Equity VC funding comparison data is currently unavailable. We're working to provide this information soon!
Growth Equity VC Funding Comparison Coming Soon

Benefits

  • Health Insurance
  • Disability Insurance
  • Mental Health Support
  • Remote Work Options
  • Flexible Work Hours
  • Paid Vacation
  • Parental Leave
  • Wellness Program

Growth & Insights and Company News

6 month growth

0%

1 year growth

1%

2 year growth

1%
VMblog
Nov 4th, 2026
Exclaimer launches Signature Converter, its first AI-assisted feature, to turn email signature screenshots into editable templates.

Exclaimer launches Signature Converter, its first AI-assisted feature, to turn email signature screenshots into editable templates. Exclaimer launched Signature Converter, an AI-assisted feature that rebuilds a screenshot of an email signature as an editable template. It is available now to organizations in the United States using Microsoft 365 or Google Workspace. Email signatures usually fall to IT, while according to Exclaimer's State of Business Email report, 35% of global IT teams rank email signature management among their most time-consuming email tasks, and 80% still rely on manual methods or user self-service. Moving an existing signature into a managed platform adds to that load, at least initially, because someone has to recreate it element by element, matching layout and spacing. Library templates help, but they don't always match the design a company already uses. With Signature Converter, an admin uploads a PNG or JPG file of up to 5 MB, either a screenshot of your current signature, a design you have received, or even a mockup you create in another design tool. Templates can then be tweaked and refined further within the Signature Designer. Recognized personal fields, such as name, job title and contact details, are automatically built as dynamic fields, pulling from each employee's directory profile. Anything else, such as a company website or legal disclaimer, carries over as editable text. A review mode then previews the converted template and flags what to check, including images, hyperlinks, fonts and colors. Once saved, the template works like any other Exclaimer signature. Signature Rules decide who receives it, and deployment runs as it does today. "Most organizations come to us with a signature design they already like. The slow part has been an IT admin rebuilding it by hand first, and most IT teams don't have that time to spare," said Paul Hammond, chief product and technology officer at Exclaimer. "Signature Converter takes that step away. Because it's our first AI feature, we built it the way we think AI belongs in an admin tool. IT switches it on deliberately, and nothing it produces reaches a user until someone has checked it." Admin control and data handling The Signature Converter functionality is turned off by default, and must be enabled by your Exclaimer Admin within Feature Settings. Signature Converter can be turned on or off for your organization within feature settings at any time. Within the Signature Designer, use is limited to the Administrator, Editor and Designer roles. Exclaimer does not retain uploaded screenshots after conversion. Its AI subprocessor processes uploads under a zero data retention agreement. Uploaded images, brand assets and generated templates are not used to train Exclaimer's AI models or any third-party model. Customers whose contracts include a no-AI clause can have AI features disabled for their account entirely by contacting their Exclaimer representative. David Marshall is the founder of VMblog.com, one of the industry's longest-running independent publications covering modern data center technologies. What began as a focus on virtualization and cloud computing has expanded to cover the full spectrum of enterprise IT, including AI, security, and DevOps, making VMblog a trusted destination for vendor news, technology analysis, and industry commentary.Beyond publishing, David has spent his career at the intersection of technology and business, inventing, marketing, and launching a number of successful software companies and products, and building a reputation as a skilled marketing executive in the enterprise IT space.David is also a published author, having written two well-regarded books on virtualization and served as technical editor for two "For Dummies" titles covering virtualization and cloud computing. He co-founded CloudCow.com, a publication focused on cloud computing, and has been named a VMware vExpert every year since 2009, one of the longest continuous honoree streaks in the program's history.Connect with David on LinkedIn: https://www.linkedin.com/in/davidmarshall/

Cloud Awards
Sep 29th, 2026
What AI adoption tells us about governance.

What AI adoption tells Cloud Awards about governance. By Karl Bagci, Head of Information Security at Exclaimer. Exclaimer were winners of the 'Best Place to Work in the Cloud,' and ' Best Software as a Service - outside the USA' awards at the 2025/26 Cloud Awards and shortlisted in five categories at the 2026 SaaS Awards. Most discussions about AI in the workplace focus on productivity. How much faster can employees create content? How many tasks can be automated? How much time can be saved? These are important questions. But they overlook a more fundamental issue. Already, 43% of primary decision-makers list AI-driven email automation among their top strategic priorities, according to Exclaimer's State of Business Email Report. The direction of travel is clear. But the conversation has raced ahead of the infrastructure. Because the greatest risk posed by AI-generated communication is not volume. It is consistency. Organizations have spent years building governance frameworks around business communication. Policies define what can be said, how information should be presented, and what regulatory requirements must be met. Yet even before AI entered the workplace, many organizations struggled to apply those standards consistently across teams, regions, and communication channels. AI has not created a new governance challenge. It has simply exposed an existing one. As AI tools become embedded in cloud productivity suites and business workflows, organizations now must determine how to ensure that faster communication remains compliant, auditable, and trustworthy. AI is accelerating existing governance gaps. The conversation around AI risk often focuses on hallucinations, misinformation, or data privacy concerns. These are important issues, but they can distract from a more immediate operational challenge, which is that most organizations already struggle with communication governance. Brand standards are interpreted differently across departments. Legal disclaimers are applied inconsistently. Communication templates evolve over time without centralized oversight. Teams adapt messaging to local requirements, while individual employees make changes based on personal preference or convenience. These challenges existed long before generative AI. What AI changes, particularly in cloud-based business processes, is the speed and scale at which communication is created. A governance issue that might previously have affected a handful of messages can now be replicated across hundreds or thousands of communications in a fraction of the time. AI did not create governance gaps. It removed the time buffer that used to hide them. And the organizations most exposed to AI-related communication risk are often not those adopting AI most aggressively. They are the ones that already lacked consistent governance controls before AI arrived. Why regulated industries face greater risk. For organizations operating in regulated industries, the implications are even more significant. Financial institutions, healthcare providers, insurance companies, and legal firms all operate within strict communication requirements. Disclosures must be accurate. Regulatory language must be applied consistently. Communications may need to be retained for legal discovery or regulatory review. In these environments, communication is more than a business function. It is part of the organization's compliance framework. An employee manually omitting a disclaimer from a single message creates risk. An AI-enabled workflow that generates hundreds of communications without the correct controls creates a very different scale of exposure. The challenge is ensuring that communication standards remain enforceable regardless of how content is created. As AI becomes more deeply embedded in cloud-based business processes, organizations must ensure that compliance requirements remain attached to the communication, not the individual creating it. Trust begins with identity. One of the most overlooked aspects of AI-generated communication is identity. As more content is created automatically, the question is no longer simply what was said. It is who said it, under what authority, and according to which standards. Customers, regulators, and business partners need confidence that communications created and sent through cloud platforms remain authentic, compliant, and accountable. That confidence depends on more than the content itself. It depends on the governance surrounding it. The data makes the stakes clear. According to Exclaimer's report, 92% of IT leaders agree that consistent, well-managed email signatures build trust and professionalism. Yet, 80% still rely on manual methods or leave employees to manage their own. That gap between what organizations value and how they actually operate is precisely where governance breaks down. Approved branding, legal disclaimers, sender identity, and audit trails are not cosmetic additions to AI-enabled communication. They are the mechanisms that make accountability possible. The more automation organizations introduce into communication workflows, the more important these governance mechanisms become. Ultimately, AI can generate content, but it cannot generate trust. Where human oversight still matters. The rise of AI has sparked debate about how much decision-making should be automated. In reality, the most successful organizations are unlikely to choose between humans and automation. They will combine both. AI is well suited to generating content, accelerating workflows, and reducing repetitive tasks. Humans remain responsible for defining policy, managing exceptions, and establishing the standards that govern communication. Organizations often focus on keeping humans involved in content creation while overlooking the importance of keeping humans involved in governance. Yet governance decisions carry significant legal, regulatory, and reputational consequences. Governance can be automated, but accountability should not. The role of technology is to enforce standards consistently. The role of people is to determine what those standards should be. Strategy before tooling. Many organizations are racing to deploy AI capabilities across their operations. The pressure to innovate is real, and the productivity gains can be significant. However, introducing AI without first establishing governance creates unnecessary risk. Before organizations ask how AI can accelerate communication, they should ask: What standards apply to these communications? How will compliance requirements be enforced? What audit trail exists? How will changes be monitored and governed? In SaaS-first environments, where communication tools are provisioned quickly and updated continuously, the gap between deployment speed and governance readiness is especially acute. Communication controls need to be embedded into the cloud infrastructure itself. Compliance requirements, disclaimers, branding and policy enforcement should operate independently of how content is generated. Whether a message is written by a person, assisted by AI, or fully automated, the same governance standards should apply. This approach allows organizations to benefit from automation without compromising consistency, compliance, or trust. Because in an AI-enabled workplace, trust will be determined by how consistently it can be governed. Exclaimer is the global leader in email signature management for Microsoft 365 and Google Workspace. Its cloud platform enables organizations to centrally manage and automate email signatures and video meeting branding, ensuring consistent corporate identity, reducing brand and compliance risk, and meeting regulatory requirements across everyday business communications. Karl Bagci is a strategic security leader with a track record of embedding security into business operations to drive growth, resilience, and trust. As the Head of Information Security at Exclaimer, he spearheads security strategies that unlock enterprise opportunities, streamline compliance, and mitigate risk. With leadership roles at Dubber, Cronofy, and UNiDAYS, Karl has built and scaled security programs, achieved ISO and SOC certifications, and significantly reduced vulnerabilities while improving operational efficiency. His expertise spans cybersecurity, risk management, IT service management, and DevOps, making him a trusted advisor to executives and a catalyst for security-driven innovation. Beyond compliance, Karl is a firm advocate for culture-driven security, ensuring teams are empowered with the right mindset, processes, and automation to maintain resilience. He believes security isn't a roadblock - it's a strategic enabler that should fuel business success.

IT Brief India
Aug 19th, 2026
Exclaimer launches MSP Connect for managed service providers.

Exclaimer launches MSP Connect for managed service providers. Wed, 19th Aug 2026 (Today) Exclaimer has launched MSP Connect for managed service providers as part of its channel strategy. The offering is aimed at providers that manage Microsoft 365 and Google Workspace environments and need a central way to handle email signatures across multiple organisations. It combines consumption-based billing, a self-service management portal, and integrations with ConnectWise, Kaseya, and Microsoft Marketplace. Managed service providers increasingly handle routine administration of cloud productivity systems, but email signatures often remain a manual task managed user by user. This can make it harder to keep branding, legal disclaimers, and contact details consistent across customer estates. Partners account for about 30% of Exclaimer's annual recurring revenue, and the company works with roughly 5,000 partners globally. MSP Connect is intended to build on that base by giving providers a way to provision and manage signature services without a lengthy services project for each new customer. The billing model adjusts as customers add or remove users, reduce their footprint, or leave the service. The portal is designed to let partners provision and manage multiple customer environments from one place, reducing the need for support requests for routine changes. The programme also includes not-for-resale licences for partner use and dedicated account management for onboarding and commercial support. Deployment can take under an hour, depending on the customer environment. Jim Turner, Chief Operating Officer at Exclaimer, said the new programme was shaped by feedback from service providers. "MSPs have been clear about what they need from us: a platform that is easy to provision at scale, a commercial model that flexes with their customers, and commercial support that helps them grow," said Turner. "We also heard clearly where our previous MSP offering fell short. It was not easy enough to use, and the billing model did not reflect how MSPs run their businesses. MSP Connect is the reset. It removes unnecessary steps, gives partners more control through self-service, and aligns billing with what their customers use," said Turner. Partner focus Exclaimer positions the programme as a way for MSPs to add another recurring service to existing Microsoft 365 and managed services contracts. Alongside licence revenue, partners can use the service as part of wider packages and offer related work such as template design, deployment, and ongoing management. That model reflects the economics of managed services, where providers need products that can be rolled out and administered across large numbers of customer tenants without adding significant labour. The service is designed to let providers manage hundreds of environments centrally rather than handling each one as a separate manual process. Louise Taylor, Vice President of Channel at Exclaimer, said operational efficiency was central to the programme's design. "An MSP is a business within a business. It needs to manage hundreds of customer environments without adding operational drag," said Taylor. "If getting one customer live requires a long sales process or a services project, the economics stop working," said Taylor. Customer use For end customers, the system is intended to keep brand assets, staff details, and legal disclaimers consistent in outgoing email. It uses directory data to populate approved signature fields across Microsoft 365 and Google Workspace, allowing IT teams to retain central control rather than relying on individual users to make updates. The company said marketing teams can use approved campaign banners, engagement analytics, and rules-based signature content, while governance remains with IT. That means MSPs can build packaged services around the underlying signature management product for both technical administration and design work. Exclaimer sells email signature management software for Microsoft 365 and Google Workspace and says it serves more than 9 million users across more than 80,000 organisations. Its customer list includes large corporates, public sector bodies, and media organisations. MSP Connect is available to partners globally.

AVTECH
Aug 19th, 2026
Microsoft is retiring Exchange Web Services (EWS): what it means for your Exclaimer email signatures.

Microsoft is retiring Exchange Web Services (EWS): what it means for your Exclaimer email signatures. Microsoft is modernising how cloud applications interact with Exchange Online. As part of an ongoing push toward enhanced security and streamlined cloud architectures via the Microsoft Graph API, Microsoft has officially confirmed the retirement timeline for legacy Exchange Web Services (EWS) in Exchange Online. If your organisation relies on Exclaimer for centralised email signature management, you might be wondering how this infrastructure shift affects your daily email workflows. Here is everything you need to know about the upcoming EWS retirement, how it impacts Exclaimer, and what actions your IT team needs to take. The Microsoft EWS deprecation timeline. Exchange Web Services (EWS) has long served as a SOAP-based protocol for accessing mailbox data. However, as Microsoft expands the capabilities of the modern Microsoft Graph API, legacy protocols are being phased out to provide higher security standards and better cloud resilience. * October 2026: Microsoft will begin disabling EWS across Exchange Online tenants globally. * April 2027: Full and permanent retirement of EWS in Exchange Online. All EWS requests from external and third-party services will be permanently blocked. What this means for Exclaimer: what is (and isn't) changing. The good news is that your primary email signature operations are completely secure and uninterrupted. What is unaffected: core email signatures. Your day-to-day email signature deployment remains fully operational: * Server-Side (Mail Flow): Signatures applied in the cloud via Exchange Online transport rules and Exclaimer mail routing do not depend on EWS. * Client-Side (Outlook Add-in): Signatures rendered directly in Microsoft Outlook as users compose their emails utilise modern Microsoft 365 add-in frameworks and Graph connections, entirely independent of EWS. All inbound and outbound emails will continue to receive their branded signatures, legal disclaimers, and promotional banners without disruption. What is changing: Sent Items Update feature. The only component impacted is the optional Sent Items Update feature: * How it works: When server-side signatures are applied in transit, the original email in the user's "Sent Items" folder initially lacks the signature. The Sent Items Update service connects back to the user's mailbox to update the sent message copy with the final branded version. * The EWS link: This specific background synchronisation historically utilised EWS permissions to modify the sent email item in Exchange Online. The roadmap: upgrading to Microsoft Graph API. Both Microsoft and Exclaimer are proactively preparing for this milestone: * Modern Graph API Replacement: Exclaimer is actively developing an updated Sent Items Update mechanism built directly on Microsoft Graph API. * Staged Transition: The new framework is designed to roll out in tandem with Microsoft's release of required Graph mailbox manipulation endpoints. * Seamless Cutover: The transition will be structured to avoid disruptions to administrative controls or user experience. Is any action required right now? No immediate action is required from your IT or administration team. The transition will take place well ahead of Microsoft's October 2026 disablement phase. As Exclaimer and Microsoft roll out the updated Graph API capabilities, AVTech will provide clear technical guidance, documentation, and migration steps if administrative consent or permission updates in Microsoft Entra ID (formerly Azure AD) are required. Have questions about your configuration? If you are unsure whether your organisation uses the optional Sent Items Update feature, or if you would like to review your current Microsoft 365 and Exclaimer configurations, its team is here to help. Contact AVTech today to speak with a specialist and ensure your Microsoft 365 cloud environment remains secure, optimised, and ready for upcoming platform updates. Advance Vision Technology Pty Ltd 19 August 2026 Optimise security with the largest AI-driven, integrated defence platform for SMBs Discover how the platform's unified approach helps Your trusted local IT Partner. Discover more. Customers and partners. Discover the leading organisations that trust AVTech to deliver innovative IT solutions and the valued partners AVTech collaborate with to drive mutual growth and success. Case studies. Explore its case studies to find proven solutions and gain insights into the tangible benefits of partnering with AVTech. Events. Explore its upcoming webinars, workshops, and conferences designed to keep you at the forefront of technology. Promotions and special offers. Dive into its current campaigns and promotions to find exceptional value on cutting-edge IT solutions.

Intelligent Tech Channels
Aug 19th, 2026
Exclaimer launches MSP Connect partner programme.

Exclaimer launches MSP Connect partner programme. Sarah Weston 19 August, 2026 Exclaimer, a global provider of email signature management, has launched MSP Connect, a new partner programme designed to help managed service providers (MSPs) provision, manage and grow centralised email signature services across multiple customer environments. The launch forms part of Exclaimer's channel-first growth strategy, with partners accounting for approximately 30% of annual recurring revenue and its global channel ecosystem including roughly 5,000 partners. MSP Connect combines a consumption-based commercial model, a redesigned self-service portal, dedicated channel support and not-for-resale licensing. The programme enables MSPs to manage customers centrally and align costs with actual usage. "MSPs have been clear about what they need from us - a platform that is easy to provision at scale, a commercial model that flexes with their customers and commercial support that helps them grow," said Jim Turner, Chief Operating Officer at Exclaimer. "We also heard clearly where our previous MSP offering fell short. It was not easy enough to use, and the billing model did not reflect how MSPs run their businesses. MSP Connect is the reset. It removes unnecessary steps, gives partners more control through self-service and aligns billing with what their customers use." The programme includes consumption-based billing, Professional Services Automation (PSA) integrations, centralised self-service, dedicated account management and NFR licensing. Exclaimer also said MSPs can deploy the service in under an hour, depending on the customer environment, across Microsoft 365 and Google Workspace.

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