Vialog
Vialog Ltd is a London-based SaaS company providing a browser-based, embeddable video discussion platform that lets websites, events, and research projects collect short user-recorded videos, serving NGOs, festivals, media, and EU-funded science communication programmes via freemium and tiered subscriptions.
- Company typePrivate
- Founded-
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Vialog does
Vialog Ltd is a UK-based private limited company headquartered in London (Level 33, 25 Canada Square) operating a cloud-hosted video discussion and engagement platform. The platform enables websites, articles, and events to collect short browser-recorded video comments (up to 60 seconds) from visitors without requiring app downloads or registrations, and is delivered via an embeddable iframe widget that deploys with a single line of code across WordPress, Wix, Shopify, Webflow, Blogger, Tumblr, and Super. Core product modules include a cloud Video Dashboard for moderation and analytics, video moderation with editable auto-transcripts, a Video Goal Tracker for engagement gamification, and Discussion Scheduling with custom Call-to-Action controls. Underlying technology is a React-based frontend (rebuilt in v21.3) running on AWS infrastructure, with auto-generated subtitles in 37 dialects, GDPR and CCPA compliance, and a public API available on the Unlimited and Enterprise tiers.
Vialog monetises through a tiered subscription SaaS model — Free (10 videos), Starter at $39/month (or $390/year), Unlimited at $99/month, and an Enterprise tier with custom pricing that adds video licensing, whitelabel, and Engagement Workshops. The company employs a hybrid go-to-market combining product-led growth (self-serve signup, free trial) with enterprise field sales and an OEM-style embedded distribution motion. Customer segments are deliberately horizontal, spanning research and science communication (notably as Work Package Leader for Dissemination in EU Horizon 2020 projects including ARTICONF, MediaFutures, HELIOS, EUNOMIA, and STADIEM), events and festivals (Sziget Festival, Black Nights, Seattle Film Summit, DocuDays), causes and activism (Amnesty International, Campax, COPmitment), media and publishing (Brand Dialogue, World Media Group, BNN Vara), education, and online communities. Strategic funding comes from Innovate UK and EU Horizon Europe grants rather than disclosed venture capital.
The company is privately held with 1–10 employees operating as a remote team. Two named executives are CEO David Sarlos, who has designed large-scale digital engagement solutions for A-list festivals, and CTO Tamas Turcsanyi, who previously led engineering on HBO's online streaming platform. The company has been Net Zero since 2020 via certified offsets through Ecologi and Gold Standard, funds one tree per discussion thread under its One Vialog One Tree programme, and has been recognised by the UK Creative Industries Council for innovative dialogical video technology.
Vialog firmographics
Firmographics- Name
- Vialog
- Legal name
- Vialog Ltd
- Website
- https://vialog.io
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Vialog Ltd is a London-based SaaS company providing a browser-based, embeddable video discussion platform that lets websites, events, and research projects collect short user-recorded videos, serving NGOs, festivals, media, and EU-funded science communication programmes via freemium and tiered subscriptions.
- Ownership category
- akta.pro rank
Where Vialog is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Vialog business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations, Others
Revenue model
- Subscription SaaS: Tiered subscription model with Starter ($39/month), Unlimited ($99/month), and Enterprise (custom) tiers. Annual billing available with 2 months free. Revenue from recurring software subscriptions.
- Professional Services: Engagement Workshops and Activation Workshops offered as part of Enterprise tier. Face-to-face consulting with Vialog team to maximize engagement results.
- Video Licensing: Enterprise customers can download and license collected videos for use on other social channels and content marketing.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free - 10 videos for trial |
| Subscription | Monthly | Starter - $39/month |
| Subscription | Annual | Starter Annual - $390/year |
| Subscription | Monthly | Unlimited - $99/month |
| Subscription | Multi-year contract | Enterprise - Custom pricing |
Go-to-market motion4 records
Distribution channels4 records
Marketing channels4 records
Vialog product offering
Product offeringCore offering
Vialog provides an embeddable video discussion platform that enables websites, articles, and events to collect short video comments (up to 60 seconds) from users without requiring app downloads or registrations. The platform serves organizations across festivals, media, NGOs, research, and enterprise with tiered subscriptions (Free, Starter, Unlimited, Enterprise), automated transcription in 37 dialects, threaded video discussions, moderation dashboards, and climate-positive infrastructure.
Product overview
Vialog is a video discussion and engagement platform that enables websites, articles, and events to collect short video comments through an embeddable widget. The platform operates on a tiered subscription model: the Vialog Core Platform provides the foundational video discussion functionality, while the Starter, Unlimited, and Enterprise plans add progressively more features including auto-transcription in 37+ dialects, API access, and video licensing. The platform also offers specialized solutions like the Science Communication vertical. Key modules include the Video Dashboard for community management, Video Moderation for content curation, Video Goal Tracker for engagement gamification, and Discussion Scheduling for time-based campaigns. The AI-powered Auto-Transcription feature (available on Unlimited and Enterprise tiers) automatically generates subtitles and keywords for SEO and accessibility.
Differentiator
Problem solved
Functional benefit
Products and services
- Vialog Video Discussion Platform Core cloud-hosted SaaS platform that enables websites, articles, and events to collect short video comments (up to 60 seconds) from users via an embeddable widget, with no app downloads or registrations required. For organizations seeking to convert passive visitors into active content contributors.
- Science Communication Solution Vertical solution packaged for science projects and research institutions to disseminate results, engage stakeholders, and gather video reflections asynchronously. Used as Dissemination layer in EU Horizon 2020 projects (ARTICONF, MediaFutures, HELIOS, EUNOMIA).
Companies that use Vialog
Customer profileNamed customers14 records
Segments6 records
Ideal customer profiles4 records
Vialog technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability4 records
Feature11 records
Vialog partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- EcologicoreEnvironmental partner for climate action and sustainability initiatives. Provides certified Gold Standard offsets and tracks environmental impact including 3 years of climate action, 1,000 trees funded, and 10 tonnes CO2e avoided.
- Gold StandardminorCertified carbon offset standard used for voluntary company emissions offsetting. Sets standard for climate and development interventions.
- ARTICONF ConsortiumcoreEU Horizon 2020 project on decentralized social media. Vialog served as Work Package Leader for Dissemination and Exploitation. Partners include: Universität Klagenfurt, Universiteit van Amsterdam, University of Edinburgh, MOG Technologies, Agilia Center, bitYoga, University for Information Science and Technology St. Paul the Apostle.
- MediaFutures ConsortiumcoreEU Horizon 2020 data-driven innovation hub. Vialog used to showcase project learnings from 12 partners including King's College London, KU Leuven, IRCAM, Open Data Institute. Supported 51 startups and 43 artists.
- STADIEM ConsortiumminorEU Horizon 2020 project focused on activating corporate media audiences. Vialog participates as technology provider.
- Trinity College DublinminorAcademic research partner in ARTICONF project. Kevin Koidl from Trinity College Dublin participated in International Social Media Day video discussion.
- University of EdinburghminorAcademic research partner in ARTICONF project. Pedro Jacobetty participated in video Q&A on future of social media.
Scale indicators12 records
Recent moves6 records
Expansion highlights6 records
Vialog competitors and assessment
Company assessmentDirect peers
- SproutVideo: SproutVideo is a video hosting and engagement platform for businesses with embeddable players, CTAs and analytics — directly comparable to Vialog's embedded video and engagement-tracking feature set.
- BombBomb: BombBomb offers browser-based video recording and email-driven video engagement for sales and marketing teams — closely comparable to Vialog's browser-based recording and engagement model.
- Vidyard: Vidyard provides video hosting, personalization, and engagement tools for sales and marketing teams, including embeddable video experiences — overlapping Vialog's enterprise engagement and video licensing offering.
- Wistia: Wistia is a video hosting and marketing-engagement SaaS for businesses, with embeddable players and analytics — a direct competitor to Vialog's website-embedded video engagement wedge.
- Vocal Video: Vocal Video automates collection of customer video testimonials on websites and landing pages — directly comparable to Vialog's UGC video collection and moderation workflow.
- VideoAsk by Typeform: VideoAsk enables asynchronous video Q&A and conversational video forms embeddable on websites — directly overlapping Vialog's core use case of collecting short user-generated video replies on publisher sites.
Broad incumbents
- Vimeo: Vimeo is an established video hosting and OTT platform with embeddable players and creator tools — a broad incumbent competing in the same hosted-video and engagement analytics space.
- Typeform: Typeform owns VideoAsk and operates at the intersection of conversational forms and engagement — a broader incumbent whose VideoAsk product competes head-on with Vialog's video discussion platform.
- Loom: Loom (now Atlassian) is a broad incumbent in async video messaging and screen recording, serving enterprise collaboration — a much larger player that overlaps Vialog's asynchronous video use case at scale.
Emerging players
- ThingLink: ThingLink creates interactive, embeddable multimedia experiences including video — an emerging player in interactive/UGC media that overlaps with Vialog's participatory video content positioning.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Vialog social profiles
Digital presenceVialog compliance and trust
Trust signalCompliance2 records
Vialog financial estimates
Financial estimateRevenue estimate
Valuation estimate
Vialog leadership team
Management profileNumber of profiles
Profiles2 records
Vialog funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Vialog 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 Vialog
What does Vialog do?
Vialog provides an embeddable video discussion platform that enables websites, articles, and events to collect short video comments (up to 60 seconds) from users without requiring app downloads or registrations. The platform serves organizations across festivals, media, NGOs, research, and enterprise with tiered subscriptions (Free, Starter, Unlimited, Enterprise), automated transcription in 37 dialects, threaded video discussions, moderation dashboards, and climate-positive infrastructure.
Is Vialog a public or private company?
Vialog is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Vialog founded?
Vialog was founded in -1. It employs 1 to 10 people.
Where is Vialog based?
Vialog is headquartered in London, United Kingdom, in the Europe region.
How does Vialog make money?
Three revenue lines are on record. Subscription SaaS are the primary driver. The others are professional Services and video Licensing.
Who are Vialog's main competitors?
Direct peers on record are SproutVideo, BombBomb, Vidyard, Wistia, Vocal Video and VideoAsk by Typeform. Broad incumbents are Vimeo, Typeform and Loom. ThingLink is listed as an emerging player.
Does Vialog have an API?
Yes. Vialog offers a public API that allows customers on the Unlimited plan to securely access Vialog metrics using developer keys. The API enables customers to connect their data with Vialog's metrics and access discussion load times and statistics. Enterprise customers can generate 'Developer keys' on the Settings page of their Vialog Dashboard to access all their data via API calls. Developer documentation is at No Information.