SimulTrans
SimulTrans is a privately held translation and localization services firm founded in 1984, providing human and AI-powered translation, software localization, audio/video, eLearning, and medical translation in 100+ languages to enterprise customers across life sciences, software, and education verticals.
- Company typePrivate
- Founded1984
- HeadquartersMountain View, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What SimulTrans does
SimulTrans (SimulTrans LLC) is a privately held translation and localization services provider founded in 1984 and headquartered in Mountain View, California. The company delivers professional translation, software localization, website translation, audio/video localization, eLearning localization, medical and regulatory translation, AI translation with human post-editing, and AI audio/voiceover services across 100+ languages. Its primary customers are large enterprises — the company reports a client base of over 12,000 organizations spanning life sciences (Medtronic, GE Healthcare, Allergan, Aerogen, Signant Health), technology/software (IBM, Autodesk, Palo Alto Networks, Sharp/NEC), eLearning and publishing (McGraw Hill, Wiley, Oracle, Korn Ferry), media (Electrolux, Acco Brands, THX), and industrial conglomerates (General Electric, Carrier).
The company's service delivery is built on a hybrid translation memory (TM) and neural machine translation (NMT) stack, augmented by human post-editing and proprietary tooling. Translation memory is built per client to reduce repeat translation cost; the proprietary SimulTracker client portal provides real-time project tracking, automated workflows, and centralized asset management. Connectors integrate with client CMS and file repository systems to automate ongoing translation, and quality estimation systems (BERTScore, COMET, TAUS EPIC, MQM) route machine-translated segments to human review where required. Voice and audio capabilities combine deep-learning AI voice generation with human voice talent. SimulTrans maintains ISO 9001, ISO 17100, ISO 18587, and ISO 27001 certifications covering quality management, translation services, machine-translation post-editing, and information security.
The company operates a sales-led, enterprise-focused go-to-market model with a unit- and usage-based pricing structure: human translation is priced per word, AI translation and post-editing per hour, voiceover per minute, and engineering/testing per hour. Pricing varies by language pair in correlation with target-country cost of living, with translation memory discounts applied to repeated content. Distribution is direct via the website (Get a Quote, Book a Meeting) and dedicated project managers, with no third-party resellers or marketplaces. The company employs 251-500 people with 12.8 years median tenure, operating from offices in Mountain View, Boston, New York, Bonn, Dublin, Madrid, and Tokyo to support simultaneous execution across time zones on large enterprise programs.
SimulTrans firmographics
Firmographics- Name
- SimulTrans
- Legal name
- SimulTrans LLC
- Website
- https://simultrans.com
- Company type
- Private
- Founded year
- 1984
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- SimulTrans is a privately held translation and localization services firm founded in 1984, providing human and AI-powered translation, software localization, audio/video, eLearning, and medical translation in 100+ languages to enterprise customers across life sciences, software, and education verticals.
- Ownership category
- akta.pro rank
Where SimulTrans is headquartered
LocationHeadquarters
- HQ city
- Mountain View
- HQ country
- United States
- HQ region
- North America
Offices7 records
Markets served
SimulTrans business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Professional Human Translation Services: Full human translation and review work, charged per word. Translation memory discounts are applied for repeated text. Pricing varies by language pair, typically corresponding to the cost of living in target countries (e.g., Simplified Chinese costs about one-third of Swedish translation). Document formatting costs are calculated per page.
- AI Translation and Post-Editing Services: AI machine translation combined with human post-editing. Costs include content preparation for machine translation, integration with the MT engine, generating machine-translated content, and post-editing. Post-editing is charged per word and represents a percentage of average human translation cost.
- Audio and Video Localization Services: Voiceover recording (human or AI), subtitling, and video localization services. Voiceover talent is charged per minute of recording. Subtitling and on-screen text localization are charged per minute based on video length. Engineering and audio services are charged per hour.
- eLearning Localization Services: eLearning content localization including translation, voiceovers, engineering, testing, and multilingual desktop publishing. Translation is charged per word; AI translation and human post-editing is charged per hour; editing and testing is charged per hour; formatting PowerPoint documents is charged per slide; voiceover for videos is charged per minute.
- Medical and Regulatory Translation Services: Certified medical translation services for clinical research, regulatory documentation, medical device content, and FDA/EMA submissions. Translation memory discounts apply for repeated text. Document formatting costs are calculated per page. Back translation is available as an additional service.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Human Translation (per-word pricing) |
| Usage-based | Pay-as-you-go | AI Translation and Post-Editing (per-hour pricing) |
| Unit Pricing | Pay-as-you-go | Voiceover Recording (per-minute pricing) |
| Usage-based | Pay-as-you-go | Audio/Video Engineering Services (per-hour pricing) |
| Unit Pricing | Pay-as-you-go | eLearning Formatting and Desktop Publishing (per-slide/per-page) |
| Unit Pricing | Pay-as-you-go | Medical Translation (per-word pricing with memory discounts) |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels10 records
SimulTrans product offering
Product offeringCore offering
SimulTrans provides enterprise localization and translation services for documents, software, websites, audio/video, eLearning, and medical content into 100+ languages. The company combines human professional translators with technology such as translation memory, neural machine translation with post-editing, and a proprietary SimulTracker client portal to deliver multilingual content for global market entry. Services are supported by ISO 9001, ISO 17100, ISO 18587, and ISO 27001 certifications.
Differentiator
Problem solved
Functional benefit
Products and services
- AI Translation Services Advanced AI/neural machine translation services combined with human linguist post-editing, including AI-only translation for gisting and AI with post-editing for ongoing localization projects. Includes linguistic validation by subject-matter experts.
- eLearning Localization Services Comprehensive eLearning content translation and localization including written content, audio and video, subtitles, closed captions, assessments, desktop software, and mobile apps into 100+ languages with SCORM-compliant course handling.
- Medical Translation Services ISO-certified medical document translation for clinical research, technical manuals, regulatory documentation, diagnostic software, medical device manuals, labeling, and instructions for use in life science content.
- Audio and Video Translation Services End-to-end multimedia localization including transcription, translation, voiceover recording (AI or human), subtitling, closed captioning, on-screen text and graphics editing, and video integration in 100+ languages.
- Document Translation Professional document translation services for various content types into 100+ languages.
- Software Localization Software localization services adapting software applications, UI strings, and technical documentation for international markets.
- Website Translation Website translation and localization services for engaging international customers.
- International Rewriting International rewriting services for culturally adapted content tailored to local markets.
- AI Audio and Voiceover Services AI-powered text-to-audio conversion and voiceover generation using synthetic voice technology for audiobooks, voice assistants, podcasts, phone systems, marketing videos, and training modules.
- Transcription Services Audio transcription services in multiple languages using industry-standard or client proprietary tools, including transcription for voice recognition databases, call analysis, SEO data, and video content localization.
- Machine Translation Suitability Report Free analysis service that evaluates source content to determine if it is suitable for machine translation, considering subject matter, sentence complexity, writing style, terminology, file format, and target languages.
Quantifiable outcome
- 97% customer satisfaction rate in 2025
- +7 more outcomes
Companies that use SimulTrans
Customer profileNamed customers18 records
Segments6 records
Ideal customer profiles4 records
SimulTrans technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability7 records
Feature6 records
SimulTrans partnerships and signals
Strategic signalScale indicators11 records
Recent moves5 records
Expansion highlights6 records
SimulTrans competitors and assessment
Company assessmentDirect peers
- Lionbridge: Lionbridge is one of the largest direct competitors to SimulTrans in enterprise translation and localization services, offering a comparable portfolio spanning life sciences, software, eLearning, and multimedia content across 100+ languages.
- TransPerfect: TransPerfect is a major full-service language services peer to SimulTrans, with overlapping offerings in document translation, software localization, interpretation, and certified life-sciences translation for enterprise clients.
- RWS Group: RWS Group is a publicly traded peer to SimulTrans in the broader language services and localization market, providing translation, IP services, and regulated-industry content localization across enterprise customers globally.
- Welocalize: Welocalize is a private direct peer to SimulTrans offering translation, localization, and AI-enabled language services to enterprise clients with similar vertical focus including life sciences and technology.
- LanguageLine Solutions: LanguageLine is a direct peer to SimulTrans in language services, particularly interpretation, serving enterprise, healthcare, and government customers with on-demand and scheduled multilingual support.
- CyraCom: CyraCom is a direct peer to SimulTrans in language services, with strong overlap in healthcare interpretation and translation, serving hospitals and health systems with multilingual patient communication.
Emerging players
- Smartling: Smartling is an emerging technology-led localization platform competing with SimulTrans in software/website localization, differentiated by a more product/cloud-platform approach versus SimulTrans' services-led model.
- Lilt: Lilt is an emerging AI-first localization platform competitor to SimulTrans, focused on adaptive neural machine translation with human-in-the-loop workflows for enterprise customers.
Broad incumbents
- Keywords Studios: Keywords Studios is a broadly comparable language services incumbent focused on gaming and media localization; it overlaps with SimulTrans on audio/video localization and translation memory workflows, particularly in multimedia content.
Others
- Trados (part of RWS): Trados is a CAT-tool vendor whose software is also used by SimulTrans internally for translation memory; it operates as an adjacent technology provider/enabler rather than a direct translation services competitor.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
SimulTrans social profiles
Digital presenceSimulTrans compliance and trust
Trust signalCompliance4 records
SimulTrans financial estimates
Financial estimateRevenue estimate
Valuation estimate
SimulTrans leadership team
Management profileNumber of profiles
Profiles2 records
SimulTrans funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SimulTrans M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SimulTrans
What does SimulTrans do?
SimulTrans provides enterprise localization and translation services for documents, software, websites, audio/video, eLearning, and medical content into 100+ languages. The company combines human professional translators with technology such as translation memory, neural machine translation with post-editing, and a proprietary SimulTracker client portal to deliver multilingual content for global market entry. Services are supported by ISO 9001, ISO 17100, ISO 18587, and ISO 27001 certifications.
Is SimulTrans a public or private company?
SimulTrans is a private company. It is classified as management employee owned and is currently operating.
When was SimulTrans founded?
SimulTrans was founded in 1984. It employs 251 to 500 people.
Where is SimulTrans based?
SimulTrans is headquartered in Mountain View, United States, in the North America region.
How does SimulTrans make money?
Five revenue lines are on record. Professional Human Translation Services are the primary driver. The others are AI Translation and Post-Editing Services, audio and Video Localization Services, eLearning Localization Services and medical and Regulatory Translation Services.
Who are SimulTrans's main competitors?
Direct peers on record are Lionbridge, TransPerfect, RWS Group, Welocalize, LanguageLine Solutions and CyraCom. Emerging players are Smartling and Lilt. Keywords Studios is listed as a broad incumbent. Trados (part of RWS) is listed as an others.
Does SimulTrans have an API?
No public API is recorded for SimulTrans.