Coldtub
Coldtub designs and manufactures cold water therapy tubs (Icepod to Iceberg lines) for professional sports teams, universities, military, commercial gyms, and home users, with proprietary automated water chemistry systems and TUV/UL safety certification.
- Company typePrivate
- Founded2008
- HeadquartersHartlebury, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Coldtub does
Coldtub is a UK-domiciled designer and manufacturer of cold water therapy (cryotherapy) equipment, founded in 2008 and headquartered in Kidderminster with US-based manufacturing. The company designs and builds a portfolio of eight cold tub models ranging from the single-user Icepod (60 gallons) to the 20-person Iceberg (1,558 gallons), sold under multiple registered trademarks including COLDTUB, POLARPOOL, PolarPlunge, and Icepod. Core technology includes integrated heating and cooling systems (42-104°F range), a patented Coldtub Pal automated salt water chemistry monitoring system that reads pH and ORP every two minutes, a 1-micron antimicrobial microfiltration system, Biolac vacuum-formed antibacterial acrylic construction, two-speed therapy jets, and WiFi/app-based remote control via the proprietary COLDTUB App and mycoldtub.com platform. The company is the only cold tub manufacturer with third-party TUV safety certification meeting and exceeding UL standards, and offers a 7-year shell warranty.
The company's commercial model is direct-to-customer with no intermediary distributors, supported by a 24/7 sales team and a dedicated UK/European sales office. Pricing is quote-based, starting at £8,900 for base models with monthly financing options from £285/month, generating both hardware revenue and a recurring supplies/parts business through shop.coldtub.com (US) and arcticspasonlinestore.com (Canada). The customer base spans five defined segments: professional sports teams (NBA, NFL, NHL, MLB, MLS, Premier League clubs, Olympic programs), college and university athletics, commercial gyms and recovery centers, individual/home users, and the US military. Notable enterprise customers include the Boston Celtics, Boston Bruins, Cincinnati Reds, AJAX Amsterdam, Miami Dolphins, New York Red Bulls, USTA, US Olympic team, US Army, Connecticut Sun, Joe Gibbs Racing, Winnipeg Jets, NC State, USA Gymnastics, with the company claiming 100+ professional and college team deployments.
Coldtub firmographics
Firmographics- Name
- Coldtub
- Legal name
- Coldtub
- Website
- https://coldtub.co.uk
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Coldtub designs and manufactures cold water therapy tubs (Icepod to Iceberg lines) for professional sports teams, universities, military, commercial gyms, and home users, with proprietary automated water chemistry systems and TUV/UL safety certification.
- Ownership category
- akta.pro rank
Coldtub industry classification
Industry- Product category
- Cold Water Therapy Equipment
- NAICS
- Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)
- SIC
- Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430)
- akta.pro primary industry
- Hot/Cold Contrast Therapy (Hot Tubs, Plunge Pools & Hydrotherapy) (HSADAKAD)
- akta.pro secondary industries
- Hot/Cold Therapy Services (Cryotherapy/Ice Baths) (HSALAFAH), Cryotherapy Services (HSADAKAE)
Keywords
Where Coldtub is headquartered
LocationHeadquarters
- HQ city
- Hartlebury
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Coldtub business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Cold Tub Hardware Sales: Sale of cold water therapy equipment across 8 model variants ranging from individual (Icepod) to large team units (Iceberg seating 20 people). Hardware includes integrated cooling, heating, filtration, and sanitization systems.
- Supplies and Replacement Parts: Filters, chemicals, testing strips, and replacement parts sold through online stores (shop.coldtub.com, arcticspasonlinestore.com for Canada).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Multi-year contract | Entry-level models starting at £8,900 |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Coldtub product offering
Product offeringCore offering
Coldtub designs and manufactures cold water therapy (cryotherapy) tubs for commercial and residential use. The lineup includes 8 distinct models ranging from a single-user 60-gallon Icepod to a 20-person 1,558-gallon Iceberg, all featuring integrated cooling/heating, automated salt-water sanitation, microfiltration, and Wi-Fi connected app control. Units are sold directly to professional sports teams, universities, gyms, recovery centers, military, and home users worldwide, with replacement parts and supplies sold through online stores.
Product overview
Coldtub manufactures a portfolio of cold water therapy (cryotherapy) products for professional sports teams, universities, commercial facilities, and residential use. The product line includes eight distinct tub models ranging from the single-user Icepod (60 gal) to the team-sized Iceberg (1558 gal, accommodating up to 20 people), plus the Icepod Bathtub Retrofit for bathroom installations. All models feature integrated temperature control (42-104°F), salt water sanitization, therapy jets, and WiFi-connected app control via the proprietary COLDTUB App and Mycoldtub.com web portal. The Coldtub Pal automated water chemistry system monitors pH and ORP levels every 2 minutes. Optional Sound Wave Therapy provides vibro-acoustic audio massage. The portfolio serves commercial gyms, recovery centers, professional athletic training rooms, spas, hotels, and individual homes worldwide.
Differentiator
Problem solved
Functional benefit
Brands
- POLARPOOL®: The original COLDTUB™ model designed to fit 3-5 people. The company's foundational product.
- Polarplunge™
- Icepod
- Icepod Plus
- Icebreaker
- Icebox
- Iceberg
- Coldtub Pal
- Icepod Bathtub Retrofit
Products and services
- Icepod Single-user cold water therapy unit measuring 60in x 30in x 42in (LWH) with 60 gal/227 L capacity, accommodates users under 6ft. Features 3/4 HP motor, high flow rate, 42-104°F temperature range, fits through standard doorways, plugs into standard 110V outlets, and requires no plumbing.
- Icepod Plus Larger single-user cold water therapy unit for taller/larger athletes measuring 7.5in x 30in x 42.5in (LWH) with 100 gal/376 L capacity, accommodating users up to 7ft/400lbs. Same footprint as Icebreaker with single-user configuration.
- Icebreaker Two-person cold water therapy unit measuring 96.5in x 30in x 42.5in (LWH) with 110 gal/414 L capacity. Features bench seating on each end for couples or two users simultaneously.
- POLARPOOL Original COLDTUB model designed for 3-5 people, measuring 81.25in x 71in x 31.5in (LWH) with 160 gal/606 L capacity. Portable unit that rolls through standard doorways and plugs into standard wall outlets.
- Icebox Cold water therapy unit designed for 5-7 people, measuring 76.5in x 76.5in x 30in (LWH) with 260 gal/984 L capacity. Square design with multiple depths and comfort seating for treating multiple people simultaneously.
- PolarPlunge Largest portable cold water therapy unit, accommodates 8-12 people. Measures 108in x 76.5in x 30in (LWH) with 455 gal/1722 L capacity. Features bench seating for full body cooling or edge seating for leg-only treatment. Portable design fits through standard doorways.
- Iceberg Largest model in the COLDTUB lineup, accommodates up to 20 people. Measures 14ft x 8ft x 4ft (LWH) with 1558 gal/5900 L capacity. Designed for outdoor installation as it does not fit through standard doorways. Requires 220V hardwire connection and includes weatherproof electronic cover.
- Icepod Bathtub Retrofit Cold therapy unit designed for bathroom renovations, measuring 5ft x 2ft x 3ft with 80 gal/303 L capacity, seats 1 person. Functions as a slide-in/slide-out appliance that plugs into standard wall outlets with no plumbing required. Features 1000W heater, underwater light, and therapy jets.
Quantifiable outcome
- Water changes required only every 6-12 months (vs competitors requiring monthly changes)
- +4 more outcomes
Companies that use Coldtub
Customer profileNamed customers16 records
Segments5 records
Ideal customer profiles5 records
Coldtub technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Coldtub partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Boston Bruins (Don Delnegro)coreOriginal collaboration that led to COLDTUB's commercial design. Worked with Boston Bruins Head Athletic Trainer Don Delnegro over 15 years ago to create a solution for safely serving hundreds of athletes per day with consistent cold, sanitized experiences.
Scale indicators4 records
Recent moves6 records
Expansion highlights5 records
Coldtub competitors and assessment
Company assessmentDirect peers
- Chill Tubs: UK-based competitor selling cold plunge and contrast therapy tubs directly overlapping Coldtub's UK and European customer base.
- Renu Therapy: Cold plunge tub manufacturer with integrated filtration and chilling systems; competes with Coldtub across both consumer and light-commercial buyer segments.
- Ice Barrel: Sells portable cold plunge barrels and accessories primarily to home users; overlaps with Coldtub's Icepod and Icepod Plus residential models at lower price points.
- Arctic Spas: Manufacturer of hot/cold all-weather spas sold for residential and commercial use; Coldtub even operates the arcticspasonlinestore.com parts channel, indicating close category adjacency.
- Cold Stoic: Direct-to-consumer cold plunge brand positioning around minimalist design and wellness enthusiasts; competes for the same home-recovery buyer that Coldtub targets with Icepod.
- Plunge: Direct-to-consumer cold plunge tub maker; competes with Coldtub in the residential and small commercial segment with strong DTC branding and venture-backed growth.
Emerging players
- Restore Hyper Wellness: Multi-modality wellness franchise offering cryotherapy, IV therapy, and recovery services; adjacent buyer of cold therapy equipment and a potential commercial channel for Coldtub versus a competitor.
- Cryo Innovations: Manufacturer of whole-body cryotherapy chambers used in athletic and clinical recovery settings; competes for the same pro/college and commercial recovery budgets as Coldtub's commercial-grade tubs.
- Tru Grit: Cold plunge equipment brand targeting athletes and CrossFit/functional fitness communities; partial overlap with Coldtub's athletic and home-user segments at lower price points.
Broad incumbents
- HydroWorx: Established manufacturer of aquatic therapy pools and underwater treadmills used in pro/college athletic training rooms; broader therapeutic product portfolio but overlaps with Coldtub's professional sports and college buyer base.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Coldtub social profiles
Digital presenceColdtub financial estimates
Financial estimateRevenue estimate
Valuation estimate
Coldtub leadership team
Management profileNumber of profiles
Coldtub funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Coldtub 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 Coldtub
What does Coldtub do?
Coldtub designs and manufactures cold water therapy (cryotherapy) tubs for commercial and residential use. The lineup includes 8 distinct models ranging from a single-user 60-gallon Icepod to a 20-person 1,558-gallon Iceberg, all featuring integrated cooling/heating, automated salt-water sanitation, microfiltration, and Wi-Fi connected app control. Units are sold directly to professional sports teams, universities, gyms, recovery centers, military, and home users worldwide, with replacement parts and supplies sold through online stores.
Is Coldtub a public or private company?
Coldtub is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Coldtub founded?
Coldtub was founded in 2008. It employs 1 to 10 people.
Where is Coldtub based?
Coldtub is headquartered in Hartlebury, United Kingdom, in the Europe region.
How does Coldtub make money?
Two revenue lines are on record. Cold Tub Hardware Sales are the primary driver. The others are supplies and Replacement Parts.
Who are Coldtub's main competitors?
Direct peers on record are Chill Tubs, Renu Therapy, Ice Barrel, Arctic Spas, Cold Stoic and Plunge. Emerging players are Restore Hyper Wellness, Cryo Innovations and Tru Grit. HydroWorx is listed as a broad incumbent.
Does Coldtub have an API?
No public API is recorded for Coldtub.
What industry is Coldtub in?
Coldtub's product category is Cold Water Therapy Equipment. Its primary akta.pro industry code is HSADAKAD, Hot/Cold Contrast Therapy (Hot Tubs, Plunge Pools & Hydrotherapy), with a secondary code of HSALAFAH, Hot/Cold Therapy Services (Cryotherapy/Ice Baths). Its NAICS code is 33341 and its SIC code is 3430.