STARK NAKED LTD

What STARK NAKED LTD does

STARKNKD (operating as STARK NAKED LTD, a UK private limited company) is a science-led physiological regulation training company that targets high-performing professionals and enterprise leadership teams. The company is built on the premise that pressure-driven physiological responses — heart racing, chest tightness, mind blanking, over-talking, freezing — are trainable patterns rooted in CO₂ regulation rather than confidence issues, and it markets itself explicitly against generic breathwork, mindfulness, and resilience training.

The core technology is clinical-grade capnometry used to measure end-tidal CO₂ in real time, producing breath-by-breath waveforms that reveal individual physiological patterns under pressure. This underpins a product surface comprising a 60-second digital breathing assessment (delivered via Tally) that produces a personalised blueprint and unlocks the 7-Day Calm Under Pressure Reset programme; a free 20-minute in-person NKD Breathing Lab in Central London (sponsored by 3Space) where customers see their own waveform; The NKD Edge content library and scientific reference glossary; and an enterprise tier consisting of a 60-minute speaker session (Before You Can Think) and a 2-hour workshop (The Regulation Lab). In development are NKD Journeys, a gamified 'Biotravel' regulation training concept, and a physical NKD Breathing Pacer Cushion for guided resonance breathing.

Commercially, STARKNKD operates a hybrid model: a freemium in-person acquisition layer (the London lab), a self-serve digital programme with undisclosed pricing, enquiry-based enterprise sales for UK-wide talks and workshops, a referral-only remote coaching offering with capnometer support, and a forthcoming hardware line. The company is founder-owned, pre-funding, and operates from a single UK geography with no disclosed revenue, headcount, or institutional investment.

Name

STARK NAKED LTD

Legal name

STARK NAKED LTD

Website

https://starknkd.ai

Company type

Private

Operating status

Operating

Short description

STARKNKD is a UK-based physiological regulation training company that uses clinical-grade capnometry to measure CO₂ patterns and trains high-performing professionals and enterprise leadership teams to regulate rather than suppress pressure responses.

Ownership category

akta.pro rank

Product category

Physiological Regulation Training

NAICS

Research and Development in the Physical, Engineering, and Life Sciences (54171)

SIC

Services-Misc Health & Allied Services, Nec (8090)

akta.pro primary industry

Breathwork Facilitation (Pranayama, Somatic, Holotropic-style) (HSADAJAC)

akta.pro secondary industry

Respiratory Monitoring & Oximetry (Capnography, Pulse Oximeters, Respiratory Rate) (HLAHAGAI)

Keywords

• Breathing performance training
• Physiological regulation coaching
• Capnometry breathing assessment
• Pressure response training
• CO2 regulation education

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Supply Chain

Revenue model

1. Digital Assessment & Programme: The NKD Breath Assessment (60-second quiz) produces a personalised breathing blueprint and provides access to the 7-Day Calm Under Pressure Reset digital programme.
2. NKD Breathing Lab Sessions: Free 20-minute in-person capnometry sessions at the Central London pop-up lab, sponsored by 3Space. Provides baseline data and introduction to the methodology at no cost to attendees.
3. Enterprise Talks & Workshops: Before You Can Think (60-minute speaker session) and The Regulation Lab (2-hour workshop) for leadership teams and organisations. Enquiry-based sales with custom pricing.
4. Physical Products: NKD breathing pacer cushion — a hardware product for guided resonance breathing practice. In production, coming soon.
5. Capnometer-Supported Remote Coaching: By referral only, limited availability coaching programme with capnometer support.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

STARKNKD provides science-led physiological regulation training focused on individual breathing behaviour and CO₂ patterns under pressure. The core offering combines a digital 60-second breathing assessment that produces a personalised breathing blueprint and access to the 7-Day Calm Under Pressure Reset programme, complemented by free in-person capnometry sessions at the Central London NKD Breathing Lab and enterprise talks and workshops for organisations.

Product overview

STARKNKD is a science-led physiological regulation training company offering an ecosystem of products and programmes focused on breathing behaviour and CO₂ patterns. The core offering combines a digital assessment (NKD Breath Assessment + 7-Day Calm Under Pressure Reset) with in-person experiences (NKD Breathing Lab in Central London). Enterprise programmes include 'Before You Can Think' (60-minute talk) and 'The Regulation Lab' (2-hour workshop) for organisations. In development are NKD Journeys (gamified Biotravel) and a physical NKD Breathing Pacer Cushion. Supporting these is The NKD Edge, a science knowledge base with articles and a glossary. The company differentiates through measurement-based approaches (capnometry) rather than generic wellness techniques.

Differentiator

Problem solved

Functional benefit

Brands

• NKD Breathing Lab: Free 20-minute in-person capnometry-based breathing assessment sessions in Central London.
• NKD Breath Assessment
• 7-Day Calm Under Pressure Reset
• Before You Can Think
• The Regulation Lab
• Journeys
• NKD breathing pacer cushion
• The NKD Edge

Products and services

• NKD Breath Assessment + 7-Day Calm Under Pressure Reset A 60-second digital breathing assessment that produces a personalised breathing blueprint and provides access to a 7-day Calm Under Pressure Reset programme, designed to help users see and understand their CO₂ patterns under pressure. Targeted at individuals who want measurable, practical regulation training.
• NKD Breathing Lab A free 20-minute in-person session in Central London offering clinical-grade capnometry measurements, live breathing waveform visualisation, and a plain-English explanation of what breathing data means for the user's nervous system. Open to individual attendees by appointment.
• Before You Can Think (Speaker Session) A 60-minute talk for organisations covering pressure reframe, CO₂ mechanism, live pattern recognition, practical reset, and Q&A. Designed for leadership offsites, women's networks, wellbeing weeks, founder groups, and legal and finance audiences.
• The Regulation Lab (Workshop) A 2-hour practical workshop for leaders and teams covering baseline education, pressure mapping, guided regulation drills, application to meetings and presentations, and an individual reset toolkit. Available UK-wide for senior leadership, managers, and high-pressure performers.
• NKD Journeys A gamified regulation training programme through real landscapes where breathing minutes convert to distance travelled. Positioned as the future of 'Biotravel'. Currently in development with limited referral-only availability.
• NKD Breathing Pacer Cushion A physical tool for guided resonance breathing practice that requires no phone, screen, or app. Users place it against their belly or behind them and let it pace breath through gentle resistance. In production and coming soon.
• The NKD Edge A science-led knowledge base featuring articles and a glossary of 50+ terms on physiological regulation under pressure, covering CO₂, breathing behaviour, autonomic regulation, and performance, with a curated reference library of scientific literature.

Quantifiable outcome

• Breathing patterns are measurable, mapped, and visualisable — patterns appear consistently across pressure conditions and are trainable

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• 3SpaceminorOthers3Space sponsors the NKD Breathing Lab pop-up location in Central London, providing physical space for the free 20-minute capnometry sessions. The sponsorship enables the experiential lab experience for individuals.

Recent moves6 records

Expansion highlights5 records

Emerging players

• Aura Health: AI-driven mental wellness app offering personalized meditation, breathwork, and life-coach content. Comparable as a digital breathwork and stress-regulation offering targeting similar consumer segments, with some overlap on personalized assessment funnels.
• Lumen: Handheld breath-based metabolism tracker that uses CO2 and flow measurement to personalize nutrition. Comparable to STARKNKD as a consumer-facing breath-measurement hardware company, though Lumen focuses on metabolic rather than pressure-regulation outcomes.
• Elite HRV: HRV measurement and biofeedback app popular with coaches and athletes. Comparable to STARKNKD for its use of physiological measurement (HRV rather than capnometry) to drive personalized training recommendations for high-performance users.

Direct peers

• Welltory: App that measures HRV, stress, and energy via the camera and integrates breathing exercises. Comparable to STARKNKD for its measurement-led approach to autonomic regulation and its use of physiological data to personalize interventions.
• Othership: Operator of in-person breathwork and sauna studios combining guided breath sessions with physical experiences. Directly comparable to STARKNKD's NKD Breathing Lab as a physical, experience-led entry point into breathwork training.
• Breathwrk: Direct competitor offering a consumer breathwork app with guided exercises and breath-pattern tracking. Highly comparable to STARKNKD's digital assessment and 7-Day Reset programme in the same breathwork category, though without capnometry-grade physiological measurement.

Broad incumbents

• Calm: Large incumbent consumer wellness app offering meditation, sleep stories, and a dedicated breathing exercises section. Comparable as a broad wellness incumbent competing for the same high-performing-professional audience, but without capnometry-grade measurement.
• Headspace: Major incumbent meditation and mindfulness app with B2B (Headspace for Work) enterprise channel that overlaps directly with STARKNKD's enterprise talks/workshops motion. Comparable on target buyer (corporate leadership, high-pressure performers) though not on physiological measurement depth.
• Insight Timer: Large free meditation and wellness app with a wide library of breathwork and stress-regulation teachers. Comparable as a broad incumbent distribution channel for breathing and regulation content competing for STARKNKD's individual-consumer funnel.
• WHOOP: Subscription physiological-monitoring wearable tracking HRV, respiratory rate, sleep, and strain. Comparable to STARKNKD for continuous respiratory/physiological measurement and a high-performing-professional customer base, though WHOOP focuses on hardware data rather than capnometry-based training.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

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 STARK NAKED LTD