10 Best Translation Software Platforms for B2B Marketing Agencies

Imagine a marketing agency that is working on 2 campaigns for 2 different brands at the same time for the same market. The content should land for both businesses, without one affecting or overlapping the other. The comparison amongst the top 10 translation software platforms for B2B marketing agencies has been created for agency owners, account directors, and content operations leads and managers. This is done for you if you are also confused about which translation software platform to consider for your next big project. 

TL;DR

• CENTROID by VerboLabs: context-led campaign localization with quality review.
• Smartcat: AI-assisted marketing content operations.
• Smartling: enterprise campaign localization.
• Phrase TMS: multi-client translation operations.
• Crowdin: integrated content collaboration.
• Redokun: layout-heavy marketing collateral.
• Lokalise: agency work spanning product UI and campaigns.
• Transifex: recurring digital content localization.
• DeepL Pro / Enterprise: paid draft translation for agency collateral.
• Pairaphrase: document-heavy agency accounts.

Compare the 10 options by buying requirements

Platform/category	Pricing basis	Client isolation	Brand-context inputs	Creative review	Client guest access	Design/CMS handoff	Revision control	Chargeable seats and services	Key unresolved buyer check	Evidence date
CENTROID; campaign localization	Confirm	Confirm	Tone briefs; confirm	Quality review	Confirm	Confirm	Confirm	Confirm	Approval boundaries	Official page; re-check
Smartcat; AI platform	Plan plus usage; verify	Confirm	Glossaries; confirm	Human editing	Confirm	Confirm	Confirm	Seats, AI, linguists	Who pays for client seats	Official page; re-check
Smartling; enterprise TMS	Contact sales	Confirm	Style guides; confirm	Service-led	Confirm	CMS connectors	Workflow	Platform plus services	Service responsibilities	Official page; re-check
Phrase TMS; TMS	Verify	Per-client TM; confirm	Termbases	Workflow steps	Confirm	Connectors	Workflow	Seats, add-ons	Agency permission model	Official page; re-check
Crowdin; localization	Public tiers; verify	Private projects; confirm	Glossary, TM	Proofreading	Guest reviewers	Design integrations	Confirm	Seats, words	Guest limits by plan	Official page; re-check
Redokun; documents	Subscription; verify	Confirm	Terminology	Document review	Confirm	File formats	Confirm	Per user	Brochure round trip	Official page; re-check
Lokalise; product and content	Seats plus usage	Confirm	Glossary, TM	Confirm	Confirm	Design tools	Confirm	Seats, words, AI	Isolation between clients	Official docs; re-check
Transifex; localization	Verify	Confirm	Glossary, TM	Confirm	Confirm	File or live	Confirm	Usage based	File versus live fit	Official page; re-check
DeepL; engine (adjacent)	Subscription; verify	Not a TMS	Glossaries	Outside engine	N/A	Documents only	Not a TMS	Users, usage	Work done elsewhere	Official page; re-check
Pairaphrase; documents	Verify	Confirm	TM, terminology	Confirm	Sharing scope	Design files?	Confirm	Verify	Design-file support	Official page; re-check

What should marketing agencies look for in translation software?

If you are also a marketing agency that is looking to work with a translation software company, then evaluate your options on these 5 factors. 

Client isolation and brand assets

Check separate TMs, glossaries, tone guides, permissions, and approvals. Test with similar terms belonging to two competing clients.

Transcreation versus literal translation

Headlines and persuasive copy need a creative brief and human adaptation. No automated score measures campaign effectiveness.

Content formats and martech integration

Check CMS, design files, slides, email and landing pages one by one. Verify connectors and layout needs.

Agency review and delivery workflow

Trace account manager, translator, local reviewer and client approval. Look at comments, revisions and audit trails.

Commercial model and client profitability

Compare subscriptions, seats, usage, linguist fees, rework and onboarding. Claim no margin gain without a baseline.

How did we evaluate the shortlist?

This evaluation of 10 companies is a desk-researched shortlist, which is mainly based on official sources and workflow relevance. Although we have not performed any hands-on testing, all the products have been specifically tested against the 5 criteria mentioned above. This helps in analysing their compatibility with your business, and how they can help you enhance and improve your workflow. 

The 10 Best Translation Software Platforms for B2B Marketing Agencies

This listing is not based on any ranking and the brands have been placed in random orders. 

1. CENTROID by VerboLabs — context-led campaign localization with quality review

CENTROID is VerboLabs’ AI-powered Translation Management System, positioned around context and quality review. It’s our proposed fit for agencies wanting brand and tone input to shape output. In a demo, use two client brands with separate tone briefs and verify workspace and approval boundaries.

Why CENTROID by VerboLabs Fits Marketing Agencies

Best for campaign work where audience, voice and intent matter more than speed. Confirm specifics against current official material.

CENTROID by VerboLabs: Features, AI & Quality

Ask how it uses AI, translation memory, terminology, automated QA and human review, and which integrations apply.

CENTROID by VerboLabs: Pricing & Customer Feedback

Treat pricing as contact sales until confirmed. No independent feedback gathered yet; add rating, count, platform and date.

CENTROID by VerboLabs: Limitations & Buyer Checks

No limitations verified or invented. Confirm client separation, tone-brief storage, approval records and who pays for reviewer access.

2. Smartcat — AI-assisted marketing content operations

Smartcat is an AI translation platform that combines machine drafts with human editing and access to freelance linguists. We suggest it for agencies handling steady marketing content. In a demo, review campaign intake and how editors check voice, claims and intent.

Why Smartcat Fits Marketing Agencies

Best for agencies wanting AI drafting, human editing and occasional outside linguists in one place.

Smartcat: Features, AI & Quality

Check AI translation, TM, glossaries, quality checks and editing tools. Separate platform features from marketplace services.

Smartcat: Pricing & Customer Feedback

Pricing combines plans with usage and marketplace fees; verify. Ask whether client reviewers need seats. Feedback not yet collected.

Smartcat: Limitations & Buyer Checks

Confirm client separation, external reviewer visibility, and how marketplace billing affects margin.

3. Smartling — enterprise campaign localization

Smartling is a translation management platform aimed at larger programs, with marketing teams as a stated audience. We suggest it for CMS-led campaigns with regional stakeholders. In a demo, focus on regional approval and who owns which service.

Why Smartling Fits Marketing Agencies

Best for agencies serving enterprise clients with large web properties and many approvers across regions.

Smartling: Features, AI & Quality

Ask about AI and MT options, TM, terminology, QA, human review, workflow design and CMS connectors for your clients.

Smartling: Pricing & Customer Feedback

Treat as contact sales unless a public page says otherwise. Ask about implementation and services. Feedback not yet collected.

Smartling: Limitations & Buyer Checks

Check onboarding time per client, review access pricing and whether service responsibilities are contractually clear.

4. Phrase TMS — multi-client translation operations

Phrase TMS is Phrase’s translation management product, separate from Phrase Strings, which targets software strings. We suggest it for agencies translating for many clients. In a demo, test client-specific TMs, termbases and agency permissions.

Why Phrase TMS Fits Marketing Agencies

Best for repeatable operations with many clients, languages and linguists. Don’t confuse it with Strings.

Phrase TMS: Features, AI & Quality

Check per-client TMs and termbases, MT options, automated QA, configurable review steps and connectors.

Phrase TMS: Pricing & Customer Feedback

Verify current plans; enterprise terms may need sales. Ask about per-user and add-on charges. Feedback not yet collected.

Phrase TMS: Limitations & Buyer Checks

Confirm reviewer permissions, setup effort and how briefs and tone guidance sit beside linguistic assets.

5. Crowdin — integrated content collaboration

Crowdin is a localization platform known for integrations and collaboration across content types. We suggest it for agencies needing linguists, designers and reviewers on connected sources. In a demo, verify design and content integrations, guest reviewers and private client projects.

Why Crowdin Fits Marketing Agencies

Best for agencies wanting collaboration around connected content instead of file handoffs.

Crowdin: Features, AI & Quality

Check AI and MT options, TM, glossary, QA checks, proofreading stages and non-user collaboration.

Crowdin: Pricing & Customer Feedback

Tiered public pricing exists; confirm limits. Ask whether guest reviewers count as seats. Feedback not yet collected.

Crowdin: Limitations & Buyer Checks

Confirm private-project isolation, guest visibility, and whether campaign adaptation goes beyond string-level work.

6. Redokun — layout-heavy marketing collateral

Redokun translates files such as Word, PowerPoint and InDesign while keeping layout. We suggest it for agencies producing brochures and collateral. To test it, run a brochure and a late revision, and watch how designers and local client reviewers collaborate.

Why Redokun Fits Marketing Agencies

Best for formatted documents, where pulling text out and pasting it back breaks layouts.

Redokun: Features, AI & Quality

Check MT, TM, terminology, reviewer tools, and whether source updates carry over without redoing translations.

Redokun: Pricing & Customer Feedback

Subscription pricing has been used; confirm current plans and whether reviewers count as users. Feedback not yet collected.

Redokun: Limitations & Buyer Checks

It’s a document tool, not a TMS. Test real layouts, text expansion and client terminology separation.

7. Lokalise — agency work spanning product UI and campaigns

Lokalise is a localization platform widely used for software and product content, with design and content workflows. We suggest it for agencies handling product copy and campaigns. In a demo, assess design-to-product copy with client reviewer access, client isolation and document scope.

Why Lokalise Fits Marketing Agencies

Best for software clients where agency work crosses from marketing into app and onboarding copy.

Lokalise: Features, AI & Quality

Check AI translation, TM, glossary, QA, design-tool handoff and in-context review. Ask what it supports for documents.

Lokalise: Pricing & Customer Feedback

Verify pricing; seats, usage and AI costs may apply. Ask about reviewer seats. Feedback not yet collected.

Lokalise: Limitations & Buyer Checks

Confirm isolation between unrelated clients and handling of brochure-style content, since product strings are its core.

8. Transifex — recurring digital content localization

Transifex is a localization platform for digital content, with file-based and live workflows. We suggest it for agencies updating the same campaign content repeatedly. In a demo, test a repeating update with local stakeholder review and decide whether file or live workflows suit each client.

Why Transifex Fits Marketing Agencies

Best for frequently refreshed landing pages and web copy where fast re-translation matters.

Transifex: Features, AI & Quality

Check MT and AI options, TM, glossary, QA and review steps. Ask what live workflows require from client developers.

Transifex: Pricing & Customer Feedback

Confirm plans and what drives cost. Feedback not yet collected.

Transifex: Limitations & Buyer Checks

Test design-led collateral, creative adaptation, client separation and whether live workflows suit clients who control their sites.

9. DeepL Pro / Enterprise — paid draft translation for agency collateral

DeepL is best known as a machine translation engine; paid plans add glossaries and stronger data-security terms. We suggest it as a draft source, not a full workflow. In a demo, translate a sales deck as a baseline and compare it with the brand editing and coordination that stay outside the engine.

Why DeepL Pro / Enterprise Fits Marketing Agencies

Best for agencies wanting a strong first draft with people and process already around it.

DeepL Pro / Enterprise: Features, AI & Quality

Review documented text and file translation, glossaries and data handling. Every campaign piece still needs human checks.

DeepL Pro / Enterprise: Pricing & Customer Feedback

Pro pricing is published, Enterprise is sales-led; confirm both. Feedback not yet collected.

DeepL Pro / Enterprise: Limitations & Buyer Checks

Not a TMS, so approvals and revision control come from elsewhere. Confirm per-client glossaries and deck output.

10. Pairaphrase — document-heavy agency accounts

Pairaphrase is a document-oriented platform combining machine translation with TM and terminology, marketed heavily to legal teams. We suggest it for document-heavy accounts. In a demo, test account-specific terminology and a revised pitch deck, and confirm design-file needs and external approval scope.

Why Pairaphrase Fits Marketing Agencies

Best for accounts producing decks, reports and proposals. Its page we reviewed targets legal content, so confirm marketing fit.

Pairaphrase: Features, AI & Quality

Check MT with TM, terminology management, file support and review features. Treat design files as unconfirmed.

Pairaphrase: Pricing & Customer Feedback

Verify pricing and limits. Feedback not yet collected.

Pairaphrase: Limitations & Buyer Checks

Confirm design-file support, external client approval without cross-account access, and revised-deck handling.

Which shortlist fits multi-client campaigns, CMS-heavy delivery, or document-heavy accounts?

If your priority is…	Consider	Why	Verify first
Context-led campaign localization with quality review	CENTROID by VerboLabs	Campaign context and review	Workspace and approval boundaries
AI-assisted marketing content operations	Smartcat	AI drafts, human editing	Client review seat costs
Enterprise campaign localization	Smartling	Large CMS-led programs	Onboarding and services
Multi-client translation operations	Phrase TMS	Many clients and vendors	Per-client TM separation
Integrated content collaboration	Crowdin	Connected content, reviewers	Guest limits
Layout-heavy marketing collateral	Redokun	Layout preserved	Real brochure round trip
Agency work spanning product UI and campaigns	Lokalise	Product content, design handoff	Isolation; document scope
Recurring digital content localization	Transifex	File and live workflows	Fit with client stacks
Paid draft translation for agency collateral	DeepL Pro / Enterprise	Strong draft source	What sits outside the engine
Document-heavy agency accounts	Pairaphrase	Account-level terminology	Design files; approval scope

What should your vendor pilot prove?

If you are planning to work on a pilot project with your vendor before starting with the actual task, you can ask for a landing page, an email sequence, and a sales deck for any two brands they might have worked on before. Other than this, you must also confirm how many rounds of QC they include in the plan, terminology used, team expertise, and the business’s past experience in the same field, industry, and niche. If you are working with more than one vendor on the pilot, give the same requirements and ask the same questions to all. This will help in creating a baseline, which can be later used for review and easier comparison.

Final recommendation

A final recommendation would be to go for Smartling or Phrase TMS if your requirements ae enterprise CMS-led work, and if you want formatted collateral, then look for Redokun. For mixed product and campaign work, look for Lokalise or Crowdin. CENTROID is a merit if your have hard problems include copy clients approval, and brand context shaping output. 

Frequently asked questions