4 eLearning Localization Companies for Taking Your Courses into Chinese

Most course creators underestimate how much a clumsy translation kills learning before the real lesson even begins. A Mandarin learner spots an awkward phrase or a misplaced tone mark in seconds, and a team in Shanghai will quietly abandon a compliance module the moment its examples feel written for someone else.

Chinese adds its own traps on top. You have to choose between Simplified and Traditional characters, re-flow layouts built around English, fix fonts that break inside older LMS players, and record voiceover that gets the tones right. After comparing localization providers on course engineering, Chinese-language capability, voice work and testing, the gap between a partner that translates and one that actually localizes became very clear. This guide breaks down four companies worth your time and budget.

The shortlist

Company information was gathered from official websites, review platforms and published case studies. Only providers with a dedicated eLearning practice and a track record in Chinese-language work made the cut.

• TransPerfect: best for global enterprises that want one vendor for every language service
• CSOFT International: best for China-focused programs and HTML5 courseware
• Andovar: best for narration-heavy courses and multilingual voiceover
• SimulTrans: best for fully tested, LMS-ready courses at scale

How the right localization partner shifts your learning outcomes

Picking the wrong partner does not just waste budget. It ships a course that looks finished but falls apart in front of learners, and in Chinese those failures are very visible. Characters render as empty boxes, quiz answers no longer match the questions, and the narrator's tones sound off to every native speaker in the room.

The real challenge is not finding someone who can translate English into Mandarin. It is finding a team that can rebuild the whole course: re-record the audio, re-time the subtitles, adapt the examples and repackage the SCORM file so your LMS still tracks completions and scores. A language school adding Mandarin content needs something very different from a manufacturer rolling out safety training to plants in Shenzhen and Taipei.

Well-localized courses keep completion rates high because learners stop fighting the material. They trust what they are reading, they finish modules, and that consistency is what actually moves skills forward.

Specs at a glance

Note: all data in this table is sourced from the official websites and public company records of the listed companies.

1. TransPerfect: best for one vendor across every language service

What is TransPerfect's main business?

TransPerfect is a New York-based language services and technology company founded in 1992, and it describes itself as the largest in its field, with offices in more than 140 cities. Training and eLearning is one of its long-standing practice areas. That covers courseware and LMS portal translation, software and graphics localization, multilingual audio and video recording, and cultural consulting. For Chinese specifically, it offers Simplified Chinese voiceover, subtitling, typesetting and graphics work alongside translation.

Where TransPerfect pulls ahead

TransPerfect solves the too-many-vendors problem. It is one of the few eLearning partners that also provides live interpretation for classroom and instructor-led training, so a blended program can stay with a single supplier. Its GlobalLink technology reuses previously translated content, which keeps costs down on course updates, and gives your in-country reviewers in China or Taiwan an online space to approve translations before release.

Reviews at a glance

TransPerfect averages 4.4 out of 5 across roughly 230 reviews on its G2 seller profile, and its GlobalLink platform was recognized in 13 categories of G2's Winter 2026 report. Reviewers often mention responsive support and ease of use. The honest flip side is size: some users report that workflows take configuring to fit their needs, and a single short course can feel like a lot of process for a modest job.

2. CSOFT International: best for China-focused programs and HTML5 courseware

What is CSOFT International's main business?

CSOFT International was founded in 2003 by Shunee Yee and grew up in Beijing, where it still keeps a headquarters alongside its US base in Boston. It draws on a network of more than 10,000 in-country linguists and subject-matter experts and lists support for over 250 languages. Its eLearning and mobile learning practice serves global enterprises, government agencies and educational institutions, and a separate health sciences division handles training for life sciences companies.

Where CSOFT International pulls ahead

CSOFT treats a course as a piece of software, which is exactly how Chinese localization tends to fail. Its services include storyboard text extraction, pre- and post-processing of course files, and course compilation and publishing, so the final package is checked for sequence and bugs before learners see it. It was one of the first localization firms to support full HTML5 courseware translation and testing, and it works with Adobe Captivate, Articulate and TechSmith Camtasia. Its Chinese roots are the other draw: few vendors on any list have spent two decades running operations from Beijing.

Reviews at a glance

Public review data for CSOFT's eLearning work is limited, so drawing strong conclusions from learner or buyer reviews is harder here. What the record does show is industry recognition, including a place on EContent's Top 100 companies in the digital content industry in 2017, and ISO 9001, ISO 17100 and ISO 13485 certifications. For buyers whose priority is China, that local depth is the main differentiator.

3. Andovar: best for narration-heavy courses and multilingual voiceover

What is Andovar's main business?

Andovar is a Singapore-headquartered localization company founded in 2007, with offices in Thailand, Colombia, Hungary, India and the United States. It has run a specialized eLearning translation practice for more than 15 years, working with multinationals, SMEs, eLearning developers and training companies. Its Chinese offer includes Simplified Chinese translation and localization across all major content types.

Where Andovar pulls ahead

Andovar tackles the part of a Chinese course that learners notice first: the voice. It runs its own recording studios in Bangkok and offers both human and synthetic voiceover, which suits compliance, health and safety, sales training and scenario-based modules where narration carries the lesson. It keeps the whole job in house, from translation and voiceover to integration into Articulate 360, Storyline and Rise, then testing.

Reviews at a glance

Andovar carries a 4.6 rating on G2 and has ranked first in G2's eLearning localization providers category. Reviewers consistently describe delivery of multilingual eLearning as smooth and point to support that feels like an extension of their own team. From what the feedback shows, it is strongest when audio and video make up a large share of the course.

4. SimulTrans: best for fully tested, LMS-ready courses at scale

What is SimulTrans's main business?

SimulTrans is a privately held enterprise translation and localization company that has worked with corporate clients since 1984, making it the longest-running company on this list. It is headquartered in Mountain View, California, has offices across Europe and in Tokyo, and covers more than 100 languages. Its eLearning localization services by Simul Trans cover written content, audio and video, subtitles and closed captions, assessments, and the desktop software or mobile apps that sometimes ship with a course. Its linguists are full-time professionals living in the target country, and the company holds ISO 9001, ISO 17100 and ISO 18587 certifications.

Where SimulTrans pulls ahead

SimulTrans solves the problem of a translated course that no longer works. It keeps software engineers and audio and video specialists in house, so the people re-recording narration, syncing subtitles and repackaging files work alongside the translators. It localizes SCORM courses while keeping tracking for time, completion, pass/fail and score intact, handles xAPI, cmi5 and native Storyline files, and works with Storyline 360, Rise 360, Adobe Captivate and Lectora. That matters for Chinese in particular: some LMS platforms struggle with extended character sets, and SimulTrans engineers build custom workarounds so Asian-language courses still display and track correctly.

Scale is handled by adding people. Some projects have used more than 100 translators per language working in parallel, so adding Simplified and Traditional Chinese alongside other languages does not stretch the timeline. You choose AI voiceover for tight budgets or human voice talent where tone matters. Pricing is quote-based but clearly structured: per word for human translation, per hour for AI translation with human post-editing and for testing, and per minute for video. There are no locked-in service plans, translation memory discounts cut the cost of updates, and the SimulTracker client portal is free.

Reviews at a glance

SimulTrans has a small footprint on public review sites, with a single G2 review (4.0 out of 5) from a long-time translation supplier who praises smooth communication with its US and Irish teams. The stronger signals come from the company itself: it reports a 97 percent customer satisfaction rate for 2025, lists clients such as McGraw Hill, Korn Ferry and Oracle, and publishes a medical eLearning case study with Aerogen. Buyers who want independent proof should ask for references from a project similar to theirs.

Behind the ranking: selection criteria

This list started with a broad scan of eLearning localization providers, pulled from industry directories, review platforms such as G2, training industry publications and the companies' own service pages.

The data-gathering phase

A provider had to appear across several sources before it was worth a closer look. No single directory or "best of" list was treated as authoritative on its own, which reduced the chance of missing a smaller but genuinely capable company.

Which providers advanced

General translation agencies that list eLearning as one service among dozens, with no detail on authoring tools, course packages or testing, were removed early. Only companies that explain how they handle SCORM or similar packages, voiceover and functional testing moved on.

Cross-referencing information

Claims on each company's website were checked against case studies, review platforms and third-party coverage. Where a provider advertised end-to-end delivery, we looked for evidence that it actually rebuilds and tests courses rather than handing back translated text.

Chinese-language proof

The final filter was relevance to Chinese. Providers scored higher if they showed Simplified or Traditional Chinese capability, offices or operations in Asia, Mandarin voice work, or engineering fixes for the character-set problems that break Chinese courses inside an LMS.

How to decide among these companies

With four strong options, the right choice comes down to your course library and your learners. A language school adding Mandarin video lessons needs a different partner than a multinational rolling out onboarding to staff in mainland China, Taiwan and Singapore. Here is what to weigh before committing.

• Industry experience: check how long the company has localized learning content specifically, not just translation in general.
• Course engineering: confirm which authoring tools and package formats (SCORM, xAPI, cmi5) it handles natively, and who rebuilds the course after translation.
• Chinese-language depth: ask whether you need Simplified, Traditional or both, who records Mandarin voiceover, and how the vendor handles fonts and character display in your LMS.
• Pricing structure: compare per-word, per-hour and per-minute pricing against your mix of text, video and testing, and ask who owns the translation memory.
• Testing and results: ask how the finished course is tested inside your LMS before launch, and request a short pilot module first.

What this means for you

The best eLearning localization company is the one that hands back a Chinese course your learners can actually use, without forcing you to rebuild it yourself. TransPerfect suits buyers who want one large partner for everything, CSOFT brings deep roots in China and HTML5 courseware, and Andovar shines when voice carries the lesson. SimulTrans is the pick when tested, LMS-ready delivery at scale matters most. As demand for Mandarin content keeps growing, from language schools to corporate training teams, the gap between translated courses and truly localized ones will only become more obvious to learners.