Steg
Steg is a Yokohama-based Japanese boutique software firm offering AI consulting, enterprise AI training, and custom web/mobile app development. It primarily serves Japanese enterprise clients in electronics, finance, and automotive, plus universities, while operating owned products including honobon, Steg Photo, and iijan.
- Company typePrivate
- Founded2020
- HeadquartersYokohama, Japan
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Steg does
合同会社 Steg is a privately held, founder-operated Japanese software studio established on September 4, 2020 by Keigo Nakao (中尾 圭吾) and headquartered in Yokohama, Kanagawa. The company combines AI technical consulting with custom web and mobile application development, deploying a Vue.js / Nuxt.js / Nitro full-stack stack, PWA implementation using @vite-pwa/nuxt with Firebase Cloud Messaging push, and computer-vision-enabled workflows through its Steg AI Lab research division. Beyond services, Steg operates a portfolio of self-developed products: honobon (a book publishing service, debut title February 2025), Steg Photo (a photographer subscription), iijan (a Discord bot for community appreciation), ttttt.app (a minimalist memo web tool), ZenShort (a Shopify app), and the OSS social-post-tools repository.
Steg's commercial model is predominantly project-based (請負) custom software and AI consulting, with quote-based, multi-year contracts and supplemental recurring revenue from Steg Photo and honobon subscriptions. Named enterprise clients span a major Japanese electronics manufacturer group, a major financial enterprise, and a major automotive group for AI training and AI agent development engagements running from mid-2025 into early 2026, plus Tokyo City University for the TAP study-abroad mobile app. Distribution is direct sales for services; Shopify App Store for ZenShort; and own-website self-serve for consumer/SMB products.
Steg has built an outsized community footprint relative to its size — bronze sponsorship of Vue Fes Japan 2024, TechTrain mentorship (TechBowl), and speaking engagements at DIST.53, Qiita Bash, AI x PR Meetup, CARTA HOLDINGS-hosted events, PeachTech, and a Findy/Cybozu-supported frontend meetup. The company is also an acknowledged Godo Commentator awardee from TechTrain Mentor Kaigi 2025. No external institutional funding, parent entities, subsidiaries, M&A activity, or regulatory actions are disclosed in the available inputs.
Steg firmographics
Firmographics- Name
- Steg
- Legal name
- 合同会社 Steg
- Website
- https://team-steg.com
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Steg is a Yokohama-based Japanese boutique software firm offering AI consulting, enterprise AI training, and custom web/mobile app development. It primarily serves Japanese enterprise clients in electronics, finance, and automotive, plus universities, while operating owned products including honobon, Steg Photo, and iijan.
- Ownership category
- akta.pro rank
Steg industry classification
Industry- Product category
- Custom AI and Software Development Services
- NAICS
- Custom Computer Programming Services (541511), Computer Systems Design Services (541512), Computer Systems Design and Related Services (54151)
- SIC
- Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)
- akta.pro primary industry
- ERP Implementation & Systems Integration Services (BPAEAGAA)
Keywords
Where Steg is headquartered
LocationHeadquarters
- HQ city
- Yokohama
- HQ country
- Japan
- HQ region
- Asia
Offices1 record
Markets served
Steg business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Custom Software Development & AI Technical Consulting: Project-based contracted development services (請負) for web applications, mobile applications, and systems. AI technology consulting and implementation support for enterprise clients, including AI training programs and technical development assistance. Revenue is earned through project fees.
- Steg Photo Subscription: Photography subscription service offering high-quality business photography and video content. Customers subscribe to access professional media assets for marketing and promotional use.
- honobon Book Publishing Service: Book publishing service (書籍出版サービス) developed and operated by Steg, generating revenue from publishing-related activities.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom software development and AI technical consulting services |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Steg product offering
Product offeringCore offering
Steg provides AI technology consulting and custom software development services — including web applications, mobile applications, AI agent development, and enterprise AI training programs — for Japanese enterprises in electronics manufacturing, financial services, and automotive sectors. The company also operates a portfolio of self-developed digital products (Steg AI Lab, honobon book publishing service, Steg Photo subscription service, iijan Discord bot, ttttt.app, and ZenShort Shopify app) and delivers end-to-end technical implementation across industries.
Product overview
Steg is a technology company combining technical strength and creativity, offering AI technical support, software development, and a portfolio of own products. The core offering is Steg AI Lab, their AI/computer vision technology research division for enterprise AI implementation. Adjacent products include honobon (book publishing service), Steg Photo (photographer subscription), and consumer-facing tools like iijan (Discord Bot for positive community interaction), ttttt.app (simple memo tool), and ZenShort (Shopify app). The company also provides AI training programs, web/mobile application development, and website production services.
Differentiator
Problem solved
Functional benefit
Brands
- Steg AI Lab: AI and computer vision technology research department providing enterprise AI implementation support and operational optimization solutions for various industries including food service.
- honobon
- Stegフォト
Products and services
- Steg AI Lab AI and computer vision research and consulting division providing end-to-end enterprise AI implementation services, including AI training programs, AI agent development, and industry-agnostic technical implementation. Targeted at enterprise clients seeking to operationalise AI.
- honobon Self-publishing book publishing service that enables authors to publish technical books. First published title under honobon was 'Nitroで作るDiscord Bot開発入門' in February 2025.
- Steg Photo (Stegフォト) Subscription-based business photography service offering pre-shooting consultation, photography, and editing in a one-stop model, delivering media assets for corporate communications, marketing, and websites.
- iijan (Discord Bot) Discord bot enabling users to express appreciation to other community members via '/iijan @username' slash command, promoting positive interaction in online communities and Discord servers.
- ttttt.app Minimal textarea web application for quick temporary note-taking, featuring Markdown toggle (Ctrl+M), no external data transmission, fast startup, and 't'-key launch from browser new tab.
- ZenShort Shopify app developed and published by Steg on the Shopify App Store, providing short-form content tooling for Shopify merchants.
- TAP App Smartphone app built for Tokyo City University's TAP (Australian Program) study abroad students, integrating messaging, calendar, and document viewing functions to unify communications and support student safety.
Quantifiable outcome
- Reduced social media posting work cost per post through AI-powered social-post-tools implementation for Vue Fes Japan
- +2 more outcomes
Companies that use Steg
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles2 records
Steg technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration2 records
AI capability6 records
Feature8 records
Steg partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered minor and core.
- CARTA HOLDINGS (CARTA HOLDINGS株式会社)minorCARTA HOLDINGS' tech PR team co-hosted the 'AI x PR Meetup ~Efficiency you can use from tomorrow~' event at their Toranomon Hills office. Steg's representative spoke at this event.
- Findy (ファインディ株式会社)minorSteg's representative spoke at 'Sugoku Sugoi Frontend Meetup' hosted at Findy's office in Tokyo-Osaki. Findy provided the venue for the frontend engineer community event.
- Cybozu (サイボウズ株式会社)minorCybozu sponsored food and beverages at the 'Sugoku Sugoi Frontend Meetup' event where Steg's representative presented.
- @vite-pwa/nuxt Open Source CommunitycoreSteg leverages the @vite-pwa/nuxt open-source library for PWA implementation in client projects, and shared detailed technical knowledge about its usage publicly. The company actively contributes to and is embedded within the Nuxt/Vue open-source ecosystem.
- TechBowl (株式会社TechBowl)coreOperator of TechTrain programming education platform. Invites Steg's representative as a mentor and connects Steg with university programming circles for speaking opportunities.
- TechTrain (株式会社TechBowl)coreSteg's representative Keigo Nakao serves as a mentor on TechTrain, a programming education platform operated by TechBowl. Steg was invited to and participated in TechTrain Mentor Kaigi 2025, a mentor-exclusive networking event. The company also presented at university programming circle events supported by TechTrain.
- PeachTech (成蹊大学プログラミングサークル)minorSteg's representative Keigo Nakao was invited to speak at PeachTech's new student welcome event through TechTrain's introduction. Presented on building products with programming for optimal university life. Also attended product presentations by PeachTech members.
- Yappli (株式会社ヤプリ)minorPeachTech's new student welcome event was held at Yappli's office. Yappli provided their office space for the university programming circle event where Steg's representative presented.
- Vue Fes JapancoreSteg served as a Bronze Sponsor of Vue Fes Japan 2024, a premier Japanese Vue.js conference. The company's representative Keigo Nakao also served as a PR team member for Vue Fes Japan, actively contributing to the conference's promotion. Steg has a deep technical affinity with Vue/Nuxt ecosystem and actively participates in and sponsors the conference annually.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Steg competitors and assessment
Company assessmentDirect peers
- Ridge-i: Japanese AI consulting firm providing custom AI solutions — including computer vision and image analytics — to enterprise clients. Directly comparable to Steg AI Lab's AI/CV focus for Japanese corporates.
- Sun* Inc. Japanese digital creative studio delivering custom software development and digital transformation services to enterprise clients. Closely mirrors Steg's hybrid engineering-plus-creative positioning.
- Goodpatch: Tokyo-based design and engineering studio offering custom application development for enterprise clients. Comparable to Steg in blending design depth (Figma, brand systems) with bespoke software delivery.
- Lightblue Technology: Japanese AI consulting firm focused on image recognition and applied AI for enterprise customers. Overlaps directly with Steg AI Lab's computer vision and AI implementation work for Japanese corporates.
- NCDC: Japan-based cloud-native consulting firm specializing in systems design and integration for enterprise clients. Comparable to Steg on the systems integration and enterprise software delivery axis.
- Fixstars: Japanese consulting firm specializing in AI and high-performance computing implementations for enterprise clients. Comparable service model to Steg's enterprise AI consulting practice.
Emerging players
- HACARUS: Japanese AI company delivering AI/ML solutions to enterprise and industrial customers. Overlaps with Steg's AI consulting focus but with a more productized AI platform orientation.
Broad incumbents
- SmartHR: Larger Japanese enterprise SaaS company serving major Japanese corporations with HR and operational software. Comparable as a Japanese enterprise technology vendor with broad client overlap.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
Steg social profiles
Digital presenceSteg financial estimates
Financial estimateRevenue estimate
Valuation estimate
Steg leadership team
Management profileNumber of profiles
Profiles1 record
Steg funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Steg 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 Steg
What does Steg do?
Steg provides AI technology consulting and custom software development services — including web applications, mobile applications, AI agent development, and enterprise AI training programs — for Japanese enterprises in electronics manufacturing, financial services, and automotive sectors. The company also operates a portfolio of self-developed digital products (Steg AI Lab, honobon book publishing service, Steg Photo subscription service, iijan Discord bot, ttttt.app, and ZenShort Shopify app) and delivers end-to-end technical implementation across industries.
Is Steg a public or private company?
Steg is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Steg founded?
Steg was founded in 2020. It employs 1 to 10 people.
Where is Steg based?
Steg is headquartered in Yokohama, Japan, in the Asia region.
How does Steg make money?
Three revenue lines are on record. Custom Software Development & AI Technical Consulting is the primary driver. The others are steg Photo Subscription and honobon Book Publishing Service.
Who are Steg's main competitors?
Direct peers on record are Ridge-i, Sun* Inc., Goodpatch, Lightblue Technology, NCDC and Fixstars. HACARUS is listed as an emerging player. SmartHR is listed as a broad incumbent.
Does Steg have an API?
No public API is recorded for Steg.
What industry is Steg in?
Steg's product category is Custom AI and Software Development Services. Its primary akta.pro industry code is BPAEAGAA, ERP Implementation & Systems Integration Services. Its NAICS code is 541511 and its SIC code is 7371.