List of Tessian Cloud Email Security Platform Customers

Tessian

15 Worship Street,
London, EC2A 2DT,
United Kingdom

https://www.tessian.com/

44 20 8068 5223

Professional Services

300

$45M

Since 2010, our global team of researchers has been studying Tessian Cloud Email Security Platform customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.

Each quarter our research team identifies companies that have purchased Tessian Cloud Email Security Platform for Secure Email Gateways (SEGs) from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.

Companies using Tessian Cloud Email Security Platform for Secure Email Gateways (SEGs) include: Clifford Chance, a United Kingdom based Professional Services organisation with 3760 employees and revenues of $2.86 billion, Clyde & Co, a United Kingdom based Professional Services organisation with 5000 employees and revenues of $833.0 million, Dentons US, a United States based Professional Services organisation with 1576 employees and revenues of $550.0 million, Clearwater Analytics, a United States based Professional Services organisation with 1915 employees and revenues of $452.0 million, Mishcon de Reya, a United Kingdom based Professional Services organisation with 1400 employees and revenues of $373.0 million and many others.

Contact us if you need a completed and verified list of companies using Tessian Cloud Email Security Platform, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.

The Tessian Cloud Email Security Platform customer wins are being incorporated in our Enterprise Applications Buyer Insight and Technographics Customer Database which has over 100 data fields that detail company usage of software systems and their digital transformation initiatives. Apps Run The World wants to become your No. 1 technographic data source!

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Customer	Industry	Empl.	Revenue	Country	Vendor	Application	Category	When	SI	Insight Source
Anthony Collins Solicitors LLP	Professional Services	312	$27M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a	In 2020, Anthony Collins Solicitors LLP implemented Tessian Cloud Email Security Platform on their website as its Secure Email Gateways (SEGs) solution to protect corporate email and client communications. The deployment covers the firm in the United Kingdom and is provisioned as a cloud hosted email security layer for the firm’s primary domain and associated mail flows, aligned to the needs of a 312 person professional services organization. Tessian Cloud Email Security Platform was configured to deliver core Secure Email Gateways (SEGs) capabilities including inbound and outbound email filtering, anti-phishing detection, attachment scanning, data loss prevention, policy-based routing, and automated quarantine workflows. Configuration emphasized policy templates tailored to legal and compliance requirements, centralized alerting, and audit-ready reporting to support incident review and regulatory obligations. The implementation integrates with the firm’s cloud email infrastructure and directory services to enforce sender and recipient policies, and it inspects mail tied to the firm domain exposed via their website. Operational governance is managed by IT and compliance stakeholders who own policy lifecycle, incident triage, and phased rollout across practice groups and administrative teams, with user awareness workflows supporting ongoing enforcement.
Ashmore Credit Solutions Ltd.	Professional Services	200	$20M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a	In 2020, Ashmore Credit Solutions Ltd. deployed the Tessian Cloud Email Security Platform. The deployment uses Tessian Cloud Email Security Platform in the Secure Email Gateways (SEGs) category to secure corporate email traffic across its UK operations and support organizational security and compliance objectives. Configuration work focused on anti phishing detection, malicious link and attachment scanning, automated policy enforcement, and machine learning based behavioral analysis. Administrators provisioned the Tessian Cloud Email Security Platform admin console for policy tuning, alerting thresholds, quarantine management, and audit logging to support security operations. The solution was implemented as a cloud hosted gateway inline with the company email flow to inspect inbound and outbound messages prior to delivery. Integration points were limited to existing email routing and authentication controls, with operational ownership assigned to IT and Security teams in the United Kingdom and coverage extending to functions such as legal, compliance, client services, and finance. Governance emphasized centralized policy management, role based access for security operators, and incident handling workflows to escalate suspected phishing or data exfiltration events. Rollout was provisioned centrally to minimize end user configuration, with ongoing monitoring and policy refinement managed by the security operations function.
Boodle Hatfield	Professional Services	170	$39M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a	In 2020, Boodle Hatfield implemented Tessian Cloud Email Security Platform as its Secure Email Gateways (SEGs) solution. The Tessian Cloud Email Security Platform was deployed as a cloud hosted email security layer protecting the firm’s external contact points and employee inboxes, delivering automated phishing prevention, machine learning based anomaly detection, outbound data loss prevention, and policy driven message controls. Deployment scope covered Boodle Hatfield’s United Kingdom operations and the professional services functions responsible for client communications, with centralized policy management and administrative controls configured in the Tessian console. The implementation was applied to secure inbound and outbound email flows associated with the firm’s website and corporate email channels, and policies were scoped to enforce role based controls for legal teams and client facing staff to align email handling with firm governance.
	Professional Services	150	$12M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a
	Professional Services	130	$15M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a
	Professional Services	800	$150M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a
	Professional Services	900	$203M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a
	Professional Services	1915	$452M	United States	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2016	n/a
	Professional Services	3760	$2.9B	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a
	Professional Services	5000	$833M	United Kingdom	Tessian	Tessian Cloud Email Security Platform	Secure Email Gateways (SEGs)	2020	n/a

Showing 1 to 10 of 35 entries

Buyer Intent: Companies Evaluating Tessian Cloud Email Security Platform

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