# IceWarp alternatives — Business Instant Messaging As of 3 Nov 2026, the panel rates [Element (3.5/5)](https://whats-best.ai/software/instant-messaging/element), [Stackfield (3.5/5)](https://whats-best.ai/software/instant-messaging/stackfield) and [Wire (Messaging) (3.5/5)](https://whats-best.ai/software/instant-messaging/wire-messaging) highest among the other 24 Business Instant Messaging products evaluated. Ratings that look equal are rounded to half stars; the order uses the unrounded rating, then the name. The highest-rated European alternative is [Element](https://whats-best.ai/software/instant-messaging/element) (UK / wider Europe). Ratings are the AI panel’s opinion, formed from public evidence: [how scores are made](https://whats-best.ai/methodology#ordering). - Canonical page: https://whats-best.ai/software/instant-messaging/icewarp/alternatives - IceWarp: https://whats-best.ai/software/instant-messaging/icewarp.md - Data as of: 2026-11-03 **AI-generated.** Ratings and verdicts are the opinion of a panel of AI judges, formed from public evidence against a published rubric — an analysis, not a hands-on test. Listed by panel rating (products the panel could not rate follow alphabetically); no placement is for sale. How lists are ordered: https://whats-best.ai/methodology#ordering ## European alternatives to IceWarp - [Element](https://whats-best.ai/software/instant-messaging/element) · UK / wider Europe · panel rating 3.5/5 · data hosting: not stated on the vendor’s pages Element is a Matrix-based messaging service from New Vector Ltd of London, built to be federated and self-hosted. - [Stackfield](https://whats-best.ai/software/instant-messaging/stackfield) · EU-Made · panel rating 3.5/5 · data hosting: not stated on the vendor’s pages Stackfield is a German-hosted business messenger the bench scores highest on encryption and access and sovereignty and lowest on governance and discovery. - [Wire (Messaging)](https://whats-best.ai/software/instant-messaging/wire-messaging) · EU-Made · panel rating 3.5/5 · data hosting: Default not stated; pages mention Germany and Ireland · free plan per the vendor’s page captured 2026-10-19 Wire, a business instant messaging platform from Wire Swiss GmbH in Zug, Switzerland, is strongest on encryption and access at 9-10: end-to-end encryption is the default for messages, files and calls on the MLS standard, the code is 100 per cent open on GitHub, and the vendor states it has no access to encryption keys and uses no backdoors. - [Threema Work](https://whats-best.ai/software/instant-messaging/threema-work) · EU-Made · panel rating 3/5 · data hosting: Default not stated; pages mention Switzerland Threema Work is a Swiss business messenger with a sharply split profile: encryption and access runs 9 to 9, on stated end-to-end coverage of messages, media, calls, files and even group member lists, open-source apps, reproducible Android builds, Cure53 audits, a formal proof of the Ibex protocol and a self-hostable key backup; messaging core and governance and discovery both land at 2 to 3. ## Other alternatives - [Slack](https://whats-best.ai/software/instant-messaging/slack) · Rest of world · panel rating 3/5 · free plan per the vendor’s page captured 2026-10-19 Slack is a cloud business instant-messaging service from Salesforce, Inc. - [Rocket.Chat](https://whats-best.ai/software/instant-messaging/rocket-chat) · Rest of world · panel rating 3/5 Rocket.Chat, an open-source business messaging platform, scores highest on deployment control and encryption and access, at 8 to 9, and lowest on pricing transparency, at 1 to 3, and sovereignty, at 2 to 4. - [Zulip](https://whats-best.ai/software/instant-messaging/zulip) · Rest of world · panel rating 3/5 · free plan per the vendor’s page captured 2026-10-19 Zulip is business instant messaging from Kandra Labs, Inc. - [Zoho Cliq](https://whats-best.ai/software/instant-messaging/zoho-cliq) · provenance unknown · panel rating 2.5/5 Zoho Cliq is a cloud business messaging service, and its encryption and access scores cluster at 7-8, its strongest area: encryption in transit and at rest (TLS 1.2/1.3, AES 256), a key hierarchy rotated every six months, SAML single sign-on, two-factor authentication and bring-your-own-key through named external key managers. - [Troop Messenger](https://whats-best.ai/software/instant-messaging/troop-messenger) · provenance unknown · panel rating 2.5/5 Troop Messenger, a self-hostable business instant messaging product, scores strongest on encryption and access and deployment control: three administrator-selectable encryption modes — plain, AES-256 standard, end-to-end — with trade-offs named in the help pages, and self-hosting on Ubuntu, RHEL, CentOS, Docker or Windows, in the customer's own AWS, Azure or GCP tenancy, or fully air-gapped. - [Pumble](https://whats-best.ai/software/instant-messaging/pumble) · provenance unknown · panel rating 2.5/5 · free plan per the vendor’s page captured 2026-11-02 Pumble is a cloud business messenger from CAKE.com Inc. - [Mattermost](https://whats-best.ai/software/instant-messaging/mattermost) · Rest of world · panel rating 2/5 · free plan per the vendor’s page captured 2026-11-02 Mattermost's platform earns its top marks where custody is the buyer's: deployment control scores cluster at 9, on self-hosting via Kubernetes, Linux or containers, air-gap runbooks, full source code access and a customer-owned MySQL or PostgreSQL database. - [Microsoft Teams (Chat)](https://whats-best.ai/software/instant-messaging/microsoft-teams-chat) · Rest of world · panel rating 2/5 · free plan per the vendor’s page captured 2026-10-26 Microsoft Teams is a cloud chat platform the bench scored best on integrations and governance and discovery, where scores cluster at 6–7: over 250 integrated business apps, documented Microsoft Graph REST APIs with SDKs, and eDiscovery, legal hold, audit log, content search and retention policies all named — though the Purview compliance suite requires Microsoft 365 E3. - [Brosix](https://whats-best.ai/software/instant-messaging/brosix) · provenance unknown · panel rating 2/5 Brosix is a business instant messaging service. - [Speakap](https://whats-best.ai/software/instant-messaging/speakap) · provenance unknown · panel rating 2/5 Speakap, a business instant messaging platform for frontline teams sold as an employee experience platform, scored strongest on integrations (4 to 6) — an app directory, developer documentation, APIs, Google Drive and SharePoint connections and HR-system sync of hires, role changes and offboarding — and on encryption and access (5 to 6), where TLS 1.2 with 2048-bit minimum keys, encryption at rest, BCrypt hashing, SOC 2 Type II and ISO 27001 are documented. - [Staffbase](https://whats-best.ai/software/instant-messaging/staffbase) · provenance unknown · panel rating 2/5 Staffbase reaches this bench as a chat module inside a broader employee-experience platform, and the scoring follows that shape. - [Talkspirit](https://whats-best.ai/software/instant-messaging/talkspirit) · provenance unknown · panel rating 2/5 Talkspirit SAS sells a cloud business instant messaging platform. - [Chanty](https://whats-best.ai/software/instant-messaging/chanty) · provenance unknown · panel rating 2/5 · free plan per the vendor’s page captured 2026-10-13 Chanty is a cloud business-instant-messaging workspace hosted on Amazon Web Services (EC2, S3, Amazon Elasticsearch Service) in SAS 70 audited data centers. - [Twist](https://whats-best.ai/software/instant-messaging/twist) · provenance unknown · panel rating 2/5 Twist, from Doist Inc., is an asynchronous messaging app built around threads, and it scores highest on that core: messaging core runs 5 to 6, crediting channels that hold threads, pinning, thread moves, an inbox, direct messages, and archiving that keeps history readable with admin-and-owner-only unarchiving. - [Flock](https://whats-best.ai/software/instant-messaging/flock) · provenance unknown · panel rating 1.5/5 · free plan per the vendor’s page captured 2026-10-26 Flock is a cloud business messaging service hosted on Amazon AWS. - [Fleep](https://whats-best.ai/software/instant-messaging/fleep) · provenance unknown · panel rating 1.5/5 Fleep, a business instant messaging service with a Fleep for Business subscription, scored 4 with no spread on integrations and on encryption and access, 2 with no spread on governance and discovery, 1 to 2 on deployment control, 2 to 3 on messaging core, 3 to 4 on pricing transparency. - [Symphony](https://whats-best.ai/software/instant-messaging/symphony) · provenance unknown · panel rating 1.5/5 Symphony Communication Services LLC sells Symphony Messaging, a messaging platform positioned for regulated global finance — its site cites 10/10 of the largest global investment banks by revenue. - [Workvivo](https://whats-best.ai/software/instant-messaging/workvivo) · provenance unknown · panel rating 1/5 Workvivo is an employee experience platform — social feed, town halls, pulse surveys — with chat marketed as natively integrated, and the scoring is lopsided: integrations, at 5-7, is the high point, for 40+ out-of-box connections across Microsoft Teams, Google Workspace, Salesforce, Jira, Workday and Personio, automation APIs, and federated sign-in via Active Directory and Okta. - [Siilo](https://whats-best.ai/software/instant-messaging/siilo) · provenance unknown · panel rating 1/5 Siilo, whose page announces 'Siilo is now called Doctolib Connect', is a business instant messaging product from the Dutch-registered vendor Siilo B.V., stating a free tier for healthcare professionals, an unpriced 'tailored' organisational offering, and statistics of 10 M monthly messages, 1.2 M professional users and 225 K care organisations in Europe. - [Beekeeper](https://whats-best.ai/software/instant-messaging/beekeeper) · provenance unknown · panel rating 1/5 Beekeeper, a mobile-first frontline communication product from Beekeeper AG, now part of LumApps, earns its top score on integrations: native connectors to Workday, ServiceNow, SAP SuccessFactors and UKG, with 500+ more claimed. Ratings are out of 5 (the panel's mean, half steps). --- Cite as: whats-best.ai, "IceWarp alternatives — Business Instant Messaging", AI panel analysis, as of 2026-11-03. https://whats-best.ai/software/instant-messaging/icewarp/alternatives