Hybrid (franchise + corporate)

PLUNJ

Nordic-inspired sauna and cold plunge bathhouse — "Nordic Inspired Sauna & Cold Plunge" (plunj.co, accessed 2026-08-10)

Traditional dry sauna (electric stove, 175–190°F)Cold plunge (45–50°F)Contrast therapyPrivate buyouts / group sessions

verified locations (Praxium)

units claimed by brand (2026)

states

2021

founded

Signature offer

What makes PLUNJ different

Communal Nordic bathhouse format rather than the private-suite model most contrast-therapy competitors use: one shared sauna and one shared cold plunge pool (up to 4 people in the plunge), sold as fixed one-hour group sessions of roughly 6–8 guests, tech-free, with an all-hours 1-hour private buyout option in 1/2/3-hour blocks. Membership is credit-based and explicitly transferable — credits can be used by "anyone," not just the member — which is unusual in this category. Combined with a $25,000 franchise fee that sits well below typical wellness-franchise fees, the model is a low-fee, shared-asset footprint rather than a per-guest suite build. (plunj.co/faqs, plunj.co/welcome-memberships, accessed 2026-08-10; fee per third-party FDD summaries below.)

PLUNJ operates Nordic-style bathhouse studios built around contrast therapy — alternating a dry electric-stove sauna held at 175–190°F with a cold plunge pool at 45–50°F, plus a rest station, private bathrooms with toiletries, lockers, and complimentary tea and water (plunj.co/faqs, accessed 2026-08-10). Sessions run one hour in a shared, tech-free room typically holding 6–8 guests, with swimwear required and a 14-year minimum age. The brand opened in June 2021 in Provo, Utah and had 16 open studios plus 4 announced as coming soon as of 2026-08-10. It expanded through franchising, which began in 2022 under the entity Plunj Franchise, LLC.

Footprint

Two counts, side by side

The brand's own unit count and Praxium's verified-location count measure different things and are shown unreconciled.

verified locations

Praxium’s own count — locations we linked to this brand, one by one.

units claimed by the brand · as of 2026

2026-08-10 — https://plunj.co/locations — 16 open studios listed, plus 4 marked coming soon (Carlsbad CA, Spanish Fork UT, Summerlin NV, San Francisco CA), accessed 2026-08-10. Note: plunj.co/about states "15 active locations" on the same date; the locations directory is the more specific count and is used here.

Franchise availability Open — per the brand's own materials. A status, not an endorsement.

Initial training is reported at approximately 6–7 days — 3 days virtual/at-home plus 3–4 days in person — comprising 38 classroom hours and 10 on-the-job hours delivered in Provo, Utah, per franchiseoverview.com/company/plunj (accessed 2026-08-10). franchiseverdict.com (accessed 2026-08-10) reports 48 hours of initial classroom and on-site instruction plus 16 hours of annual field support; the two are broadly consistent on order of magnitude. peersense.com (accessed 2026-08-10) describes "structured onboarding" covering protocols, safety, guest experience, membership and maintenance without stating a duration. No buildout timeline is published in any source reviewed. Separately, franchiseverdict.com states the FDD carries a going-concern qualification on the franchisor's audited financials; this is single-sourced and unverified against the FDD, and an operator must confirm it directly in Item 21 before proceeding — it would be material.

None found. All 16 open locations and all 4 announced locations are in the United States (plunj.co/locations, accessed 2026-08-10).

For members

What PLUNJ sells members

Credit-based monthly membership, two tiers, month-to-month. Per plunj.co/welcome-memberships (accessed 2026-08-10): "No contracts, no sign-up fees. Your membership renews monthly and you can cancel anytime—even mid-month." LAGOM = 4 sessions/month; TAKT = 8 sessions/month. Both include "fully transferable credits," weekly member-only bonus sessions, and "Bring a friend 30% off ($25)." Members get 30% off additional sessions ($25 each) beyond their monthly credits. Prices shown on that page are first-month intro rates; the page states memberships then "renew at our standard rates," which are published per location rather than nationally.

Intro (first month) rates published nationally at plunj.co/welcome-memberships, accessed 2026-08-10: LAGOM $35/mo (4 sessions), TAKT $75/mo (8 sessions); additional sessions $25 each for members. Standard post-intro rates are not published nationally. Location-level pricing observed in the Praxium corpus: PLUNJ Salt Lake (South Salt Lake, UT) 10-visit punch pass $250, $35 per visit standard rate; PLUNJ Kaysville (UT) private bookings 1 hour up to 10 people $210, 2 hours $310.

Brand details

Company

Founded: 2021
Headquarters: Provo, UT
Founders: Sean Foster; Lauren Foster; Derek Ence (partner); Kimberly Ence (partner)
Parent company: Plunj Franchise, LLC (franchisor entity, per franchiseoverview.com summary of the Plunj FDD, accessed 2026-08-10)

System

Ownership model: Hybrid (franchise + corporate)

Franchisee support, as published

Initial training in Provo, Utah — approx. 38 classroom hours plus 10 on-the-job hours over roughly 6–7 days, 3 virtual and 3–4 in person (franchiseoverview.com summary of the Plunj FDD, accessed 2026-08-10)
Ongoing field support — approx. 16 hours annually (franchiseverdict.com summary of the Plunj FDD, accessed 2026-08-10)
Structured onboarding covering operating protocols, safety, guest experience, membership and facility maintenance (peersense.com summary of the Plunj FDD, accessed 2026-08-10)
Brand marketing fund funded by a 1% of gross sales contribution (Item 6, per third-party FDD summaries, accessed 2026-08-10)
National booking and membership platform operated at plunj.co/book with per-location booking pages (plunj.co, accessed 2026-08-10)

Visit PLUNJ ↗

The dossier

What it costs to open a PLUNJ

Terms tied to the 2025 disclosure cycle. Citations stay inline wherever the research recorded one.

Franchise fee: $25,000 — Item 5, per third-party FDD summaries at peersense.com/franchise/plunj, franchiseverdict.com/brand/plunj, franchiseoverview.com/company/plunj and chainportal.ai/franchises/plunj; all four agree. Accessed 2026-08-10.
Initial investment — low end: $394,700 — Item 7 low end, per chainportal.ai/franchises/plunj (accessed 2026-08-10); peersense.com states $394,000 and franchiseverdict.com/franchiseoverview.com state $395,000 for the same range.
Initial investment — high end: $696,033 — Item 7 high end, per chainportal.ai/franchises/plunj (accessed 2026-08-10); peersense.com, franchiseverdict.com and franchiseoverview.com all round this to $696,000.
Royalty: 6% of gross sales — Item 6, per third-party FDD summaries at peersense.com, franchiseverdict.com, franchiseoverview.com and chainportal.ai; all four agree. Accessed 2026-08-10.

Ad / brand fund: 1% of gross sales (marketing fund) — Item 6, per third-party FDD summaries at peersense.com, franchiseverdict.com and chainportal.ai; all three agree. franchiseoverview.com additionally reports a further 1% local advertising cooperative contribution, which the other three do not list — treat the extra 1% as unconfirmed. Accessed 2026-08-10.
Term length: 10-year initial term with a 10-year renewal term — per franchiseoverview.com/company/plunj and franchiseverdict.com/brand/plunj, which agree. Accessed 2026-08-10.
Multi-unit commitment: No minimum multi-unit commitment is stated in any of the four third-party FDD summaries reviewed (peersense.com, franchiseverdict.com, franchiseoverview.com, chainportal.ai, all accessed 2026-08-10). Absence in a summary is not proof of absence in the FDD.
Territory model: Exclusive protected territory. franchiseoverview.com (accessed 2026-08-10) describes it as determined case-by-case based on population density and proximity to existing locations; franchiseverdict.com (accessed 2026-08-10) reports "exclusive protected territory." Both are third-party summaries, not the FDD text.

Reported unit economics (FDD Item 19)

No systemwide AUV published. Whether an Item 19 financial performance representation exists at all is disputed across the third-party summaries: peersense.com (accessed 2026-08-10) reports an Item 19 with two named locations — Provo approx. $368,000 revenue / approx. $163,000 NOI and Saratoga Springs approx. $617,000 revenue / approx. $242,000 NOI — while franchiseverdict.com (accessed 2026-08-10) states the franchisor made no earnings representation. Because these directly contradict each other and neither is the FDD itself, no AUV figure is asserted here. An operator should obtain the FDD directly and read Item 19 before underwriting.

Reported from public sources — named inline where the research records them — not verified against the primary FDD and not advice. Verify Items 5–7, 12 and 19 of the current FDD before relying on any figure. Primary economics source ↗

Research sources for this page (10)

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