Rouk OÜ

What Rouk OÜ does

Rouk OÜ is a founder-led technology studio registered in Tallinn, Estonia (Reg. 14694236, VAT EE102148462), operating as a fractional CTO and senior product builder for companies that lack full-time technical leadership. The studio is run by Sander Rõuk as a solo operator supported by a "small, trusted network" and delivers services in two engagement modes: Builder (hands-on full-stack, mobile, and cloud engineering) and CTO (strategy, architecture, engineering hiring, due diligence). Core service lines include MVP & Product Build, Fractional CTO retainers embedded 1–3 days per week, Compliance & Security for HIPAA/SOC 2/GDPR, DevOps & Cloud, Mobile Apps, Technical Due Diligence, and Engineering Hiring — priced as fixed-price projects, day rates, or multi-year retainers with no published tiers.

The studio's technology base spans full-stack web (Next.js, React, Node, Python), mobile (React Native, Swift, Kotlin), and cloud infrastructure (AWS, GCP, Vercel, Docker, CI/CD). Its primary technical differentiator is regulated-environment engineering — HIPAA-compliant PHI handling (encryption at rest/in transit, role-based access, tamper-evident audit logs, BAA chain management, 72-hour breach notification runbooks), SOC 2 Type I audit preparation (trust services criteria mapped to code/infra/process, automated evidence collection, SSO/MFA/JIT), and GDPR data subject rights wired at the database layer. The studio has shipped across edtech, defence, life sciences, financial analytics, and healthcare, with named engagements including Motimate (engineering leadership through its 2019–2022 acquisition by Kahoot!), Teleplan Globe (2022–2025 defence platform rebuild in Oslo), Eurofins (2024–present life-sciences tooling), Lutso (healthcare), Quantem Analytics (financial analytics), Mooncascade, and Nortal.

Commercially, Rouk generates revenue through fractional CTO retainers (recurring), fixed-price project engagements, day-rate consulting, and dedicated compliance/security services. Go-to-market is sales-led and trust-based — no paid advertising, content marketing, or SEO; growth runs on referrals, direct outreach to non-technical founders and investors, and a website contact-form funnel with 48-hour written proposals. Target segments are non-technical founders and post-funding CEOs needing pre-CTO senior judgment, regulated-industry companies (healthcare, fintech, defence, life sciences), SMBs digitising operations, and investors/acquirers requiring technical due diligence. The company operates globally while headquartered in Tallinn, working across two continents with a mix of enterprise (Kahoot!, Teleplan Globe, Eurofins, Quantem Analytics) and startup (Lutso, Motimate, Mooncascade) clients.

Name

Rouk OÜ

Legal name

Rouk OÜ

Website

https://rouk.io

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

Rouk OÜ is a Tallinn-based solo technology studio offering fractional CTO and senior product-building services to non-technical founders and regulated-industry companies. Founded by Sander Rõuk, it specialises in HIPAA-, SOC 2-, and GDPR-compliant full-stack, mobile, and cloud engineering with embedded CTO retainers.

Ownership category

akta.pro rank

Headquarters

HQ city

Tallinn

HQ country

Estonia

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Fractional CTO Retainers: Embedded in client leadership teams 1-3 days per week. Strategy, people, architecture, and technical judgment without full-time hire commitment. Retained engagement model.
2. Fixed-Price Project Engagements: MVP & Product Build engagements with defined deliverables and timelines. From Figma or napkin to production product in weeks. Also includes DevOps, Mobile Apps, and Technical Due Diligence projects.
3. Day Rate Consulting: Day rate engagements offered as an alternative to fixed pricing. Flexibility for engagements that don't fit standard project scoping.
4. Compliance & Security Services: HIPAA, SOC 2, and GDPR compliance engineering. Policies, technical controls, and audit preparation for regulated environments.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Rouk OÜ is a single-operator technology studio providing fractional CTO services and hands-on product engineering for companies without full-time technical leadership. It delivers MVP builds, compliance engineering for HIPAA/SOC 2/GDPR-regulated environments, DevOps and cloud setup, mobile apps, technical due diligence, and engineering hiring support under either Builder (hands-on coding) or CTO (strategic leadership) engagement modes. All engagements are delivered embedded with the client team, typically 1–3 days per week.

Product overview

Rouk OÜ is a technology studio operating as a fractional CTO and senior builder for early-to-growth-stage companies without a full-time CTO. It offers a portfolio of discrete service offerings — MVP & Product Build, Fractional CTO, Compliance & Security, DevOps & Cloud, Mobile Apps, Technical Due Diligence, and Engineering Hiring — delivered under two engagement modes: Builder Mode (hands-on code execution) and CTO Mode (technical leadership and strategy). Services are offered à la carte or blended per client need, with clean documentation and audit-ready delivery as a baseline standard. All engagements operate in regulated environments (HIPAA, SOC 2, GDPR).

Differentiator

Problem solved

Functional benefit

Products and services

• MVP & Product Build Full-stack product development service taking concepts from Figma or napkin sketch through to a production-ready product in weeks, covering full-stack web (Next.js, React, Node, Python), iOS & Android (React Native, Swift, Kotlin), and cloud infrastructure. Designed for non-technical founders and teams without in-house engineering capacity.
• Fractional CTO Part-time CTO embedded in the client's leadership team 1–3 days per week, providing technical strategy, architecture decisions, engineering hiring, roadmap planning, and vendor selection without requiring a full-time executive hire. Targeted at non-technical founders and post-funding companies.
• Compliance & Security HIPAA-, SOC 2-, and GDPR-ready system implementation including policies, technical controls, audit logging, PHI inventory, role-based access controls, BAA chain management, and breach response runbooks. Targeted at healthcare, fintech, defence, and life-sciences companies requiring audit-defensible delivery.
• DevOps & Cloud Ship-safe infrastructure delivery including CI/CD pipelines, monitoring, cost control, on-call support for founders, and cloud operations across AWS, GCP, and Vercel environments.
• Mobile Apps iOS and Android application development via React Native, or native development using Swift and Kotlin when performance or platform-specific capabilities are required.
• Technical Due Diligence Investor- or acquirer-grade code, security, and engineering team assessments for evaluating technical assets during M&A processes or investment decisions. Targeted at investors and acquirers.
• Engineering Hiring End-to-end engineering recruitment support including role definition, candidate sourcing, technical interview execution, and hire closure for building out engineering teams.
• Builder Mode (Mode 01) Hands-on execution engagement mode where Sander Rõuk writes code directly — full-stack web, mobile, cloud infrastructure, and integrations — delivering a shipped product against a specification or deadline.
• CTO Mode (Mode 02) Leadership and advisory engagement mode providing technical judgment, architecture decisions, engineering hiring support, and translation between business requirements and engineering execution without writing code directly.

Quantifiable outcome

• MVP to production product in weeks, not quarters
• +2 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Arc.dev: Marketplace for senior remote developers and fractional engineering leaders. Comparable to Rouk in serving startups with senior vetted talent and offering fractional leadership engagements on a remote basis.
• Thoughtbot: Software consultancy offering product development, design, and fractional leadership to startups and SMBs. Comparable to Rouk in pairing Builder-mode execution with strategic/technical leadership for non-technical founders.
• DockYard: Custom software consultancy specializing in web, mobile, and Elixir development for product teams. Comparable to Rouk in offering senior-embedded engineering and fractional CTO-style engagements for clients needing both delivery and leadership.
• Lemon.io: Vetted marketplace of senior freelance engineers and fractional CTOs targeting startups. Closely comparable to Rouk in customer segment (early-stage, often non-technical founders) and engagement model (remote, project or retained).
• A.Team: Curated network of product builders, engineers, and fractional CTOs assembled into on-demand teams for startups. Directly comparable to Rouk's fractional CTO and Builder-mode offerings for early-stage founders needing senior technical leadership without a full-time hire.
• Atomic Object: Boutique custom software consultancy that ships product for clients across regulated and non-regulated industries. Comparable to Rouk in being a focused software studio delivering bespoke builds with embedded engineers, though at larger team scale.
• 8th Light: Software consultancy providing custom development, consulting, and apprenticeship services with a focus on craft and compliance-aware delivery. Comparable to Rouk in regulated-environment technical depth and boutique-studio positioning.

Broad incumbents

• Toptal: Global marketplace for freelance engineering talent including fractional CTOs and project-based delivery. Comparable to Rouk in offering vetted senior technical talent on demand, though at vastly greater scale and as a platform rather than a single-practitioner studio.
• Braintrust: Decentralized talent network connecting companies with vetted technologists including fractional CTOs. Comparable to Rouk in serving startups needing senior technical talent, though as a broader marketplace spanning multiple roles.

Regional players

• Very Good Ventures: Specialized software consultancy focused on Flutter and mobile app delivery for product teams. Comparable to Rouk in mobile and full-stack boutique-studio delivery for startup and enterprise clients, though with a narrower technology focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/sanderrouk
• LinkedInlinkedin.com/in/sanderrouk

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Rouk OÜ