What [solidcore] does

Solidcore is a US-based boutique fitness company founded in 2013 by Anne Mahlum that delivers a 50-minute, high-intensity, low-impact strength-training workout on proprietary custom-built Pilates-inspired reformer machines. The workout uses slow, controlled, time-under-tension movements targeting type 1 (slow-twitch) muscle fibers to muscular failure, delivered in small group class sizes with hands-on coach attention. The product is modularized into named class formats (Starter50, Foundation50, Signature50, Power30, Focus50, Advanced50, Advanced65) that share the same core method and proprietary equipment, with member access and operations handled through a native iOS/Android mobile app and website for booking, membership management, waitlist, and door unlock.

Name

[solidcore]

Legal name

Solidcore Holdings LLC

Website

https://solidcore.co

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Solidcore is a US boutique fitness company operating ~168 studios across 31+ states, offering 50-minute high-intensity, low-impact strength training on custom Pilates-inspired reformers via monthly memberships and class packs.

Ownership category

akta.pro rank

Product category

Boutique Fitness Studios

NAICS

Fitness and Recreational Sports Centers (71394), Sports and Recreation Instruction (61162)

SIC

Services-Membership Sports & Recreation Clubs (7997)

akta.pro primary industry

Pilates Instruction (Mat & Reformer) (HSADACAB)

akta.pro secondary industries

Strength & Conditioning Personal Training (HSADAAAB), Functional Fitness & Mobility Training (HSADAAAD), Weight Loss & Body Transformation Training (HSADAAAC)

Keywords

• Boutique fitness studios
• Reformer strength training
• High intensity workouts
• Group fitness classes
• Wellness memberships

Headquarters

HQ city

Washington

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Monthly subscription memberships: Recurring monthly memberships on auto-renewal: 4-class/mo, 8-class/mo, 12-class/mo, and Unlimited tiers. Standard memberships are month-to-month with no commitment; Committed/Committed Plus memberships carry 6- or 12-month minimum terms with early-termination fees. Credits do not roll over month-to-month.
2. Class packages and single drop-ins: Pre-paid bundles of classes with fixed expiration windows: New Client 4 Pack (30 days), 5-packs (45 days), 10-packs (90 days), and single drop-in/express classes (30 days). Sold via website and mobile app.
3. Late cancellation and no-show fees: Per-studio cancellation fees ranging from $25 to $40 (with a pilot program tiered $10–$45 in select markets). Charged when clients late-cancel inside 10 hours or no-show. Monthly unlimited members get first-late-cancel waiver per 30-day period.
4. Retail and merchandise: Sale of branded items such as grip socks (referenced via Greatness Within Challenge), bottled water, and other in-studio merchandise.
5. Third-party marketplace revenue (ClassPass): Incremental revenue from ClassPass bookings; solidcore reports positive incremental revenue contribution from the platform.
6. Membership freeze and ancillary fees: One complimentary 14-day membership freeze per calendar year (standard), and small (3%) credit-card processing fees on card payments subject to regulation.

Pricing tiers

Go-to-market motion5 records

Distribution channels6 records

Marketing channels7 records

Core offering

solidcore operates a national boutique fitness studio network delivering a 50-minute, high-intensity, low-impact resistance training class on a custom-built Pilates-inspired reformer machine. Classes use slow, controlled movements to drive type 1 (slow-twitch) muscle fibers to second-degree muscle failure for muscular endurance, delivered in small groups with personalized coach attention. The core workout is wrapped with recurring monthly memberships, pre-paid class packs, branded merchandise, and the Core Collective member benefits program offering partner-brand discounts.

Product overview

solidcore operates a single unified boutique fitness product — a 50-minute high-intensity, low-impact strength training class on a custom-built Pilates-inspired reformer machine — delivered through a national studio network (250+ studios across 33+ US states as of mid-2026). The offering is modularized through named class formats that share the same core method (slow, controlled movements targeting slow-twitch muscle fibers to failure): Starter50 (intro), Foundation50 (beginner form focus), Signature50 (signature full body), Power30 (30-minute focused), Focus50 (muscle-specific, including a pregnancy-safe variant), Advanced50 (advanced full body), and Advanced65 (extended advanced). The physical experience is anchored by the proprietary solidcore reformer hardware, with member access delivered through the solidcore mobile app (iOS and Android) supporting class booking, waitlist, door unlock, and buddy features. Wrapped around this core are recurring Memberships (4x, 8x, 12x, Unlimited tiers) and the Core Collective member benefits program, which extends the brand into recovery, nutrition, performance, and self-care through 2026 partnerships with Celsius, KOIA, Salt & Stone, Thorne, and Tower 28.

Differentiator

Problem solved

Functional benefit

Products and services

• solidcore Signature50 workout The signature 50-minute full-body strength training class on a custom solidcore reformer using slow, controlled movements targeting type 1 (slow-twitch) muscle fibers to second-degree muscle failure, delivered in small group settings with personalized coach attention. For adult consumers seeking time-efficient, low-impact boutique strength training.
• Starter50 intro class Introductory 50-minute workshop-style class for new solidcore clients, those returning from injury, or anyone preferring a slower-paced workout focused on form, with hands-on coaching and programmed breaks.
• Foundation50 class Beginner strength training class focused on form fundamentals, designed as the graduation step from Starter50 toward the Signature50 class.
• Power30 class (Core + Lower / Core + Upper / Core + Obliques) 30-minute targeted strength training class focusing on the core plus a specific muscle group (lower body, upper body, or obliques) to build functional strength in specific areas.
• Focus50 class (Core + Obliques + Upper / Core + Lower + Upper / Core + Obliques + Lower) 50-minute muscle-specific class targeting the lower body, upper body, obliques, and core in various combinations; suitable for intermediate and advanced clients, with a pregnancy-safe variant.
• Advanced50 class The ultimate challenge class for advanced solidcore clients; elevates the signature total body workout with harder transitions, more demanding exercises, and amplified movement.
• Advanced65 class Extended 65-minute signature total body strength training workout for seasoned clients who want to push their limits with a longer session.
• solidcore mobile app (iOS/Android) Native iOS and Android app enabling members to book classes, purchase memberships and class packages, view the schedule, access door unlock codes, join waitlists, bring a buddy, manage payments, and receive notifications for challenges and promotions.
• solidcore Memberships (4x, 8x, 12x, Unlimited) Recurring monthly membership tiers — 4-class/month, 8-class/month, 12-class/month, and Unlimited — with perks such as early schedule access, Core Collective discounts, bring-a-friend, late-cancellation fee waiver (Unlimited), and travel-to-any-studio (Unlimited).
• solidcore class packs (New Client 4 Pack, 5-pack, 10-pack, single drop-in/express) Pre-paid bundles of classes with fixed expiration windows — New Client 4 Pack (30 days), 5-packs (45 days), 10-packs (90 days), and single drop-in/express classes (30 days) — sold via website and mobile app.
• solidcore custom reformer Custom-built Pilates-inspired reformer machine exclusive to solidcore studios, combining a platform, carriage, handlebars, and resistance cables used in every class format.
• solidcore studio network Boutique fitness studio network with 168–250+ locations across 31+ U.S. states, including flagship dual-studio formats, where members attend signature and specialty class formats.
• solidcore branded merchandise Sale of branded items such as grip socks, bottled water, and other in-studio merchandise to members and prospects.

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Partnerships

15 partnerships are on record, tiered flagship, minor and core.

• SiteRiseflagshipStrategic or Co-development Partner · 1 May 2026Two-year strategic partnership (highlighted May 2026) in which SiteRise's platform has centralized workflows across development, design, construction, and operations, enabling solidcore to procure, plan, and manage more than 250 prospective studio locations. The partnership supports expansion into new markets such as San Diego and San Francisco while improving forecasting and cross-functional collaboration without increasing operational complexity or headcount.
• 200E20TH / CetraRuddyminorStrategic or Co-development Partner · 1 May 2026Solidcore opened a flagship location at the base of 200E20TH, a CetraRuddy-designed residential condominium in Manhattan's Gramercy Park, aligning retail and residential offerings.
• CelsiuscoreGTM or Marketing Partner · 1 April 2026Featured in solidcore's 2026 Core Collective member-exclusive program. CELSIUS is offered as a better-for-you zero-sugar energy option; solidcore members receive a 20% discount automatically applied to all in-studio purchases.
• KOIAcoreGTM or Marketing Partner · 1 April 2026Featured in solidcore's 2026 Core Collective. KOIA protein drinks are being introduced in solidcore studio fridges nationwide, with members receiving 20% off the full lineup of vegan protein drinks and powders, online and in studios.
• Salt & StonecoreGTM or Marketing Partner · 1 April 2026Featured in solidcore's 2026 Core Collective. Salt & Stone provides performance-driven personal care products; solidcore members receive 15% off Salt & Stone products.
• ThornecoreGTM or Marketing Partner · 1 April 2026Featured in solidcore's 2026 Core Collective. Thorne nutritional supplements are made available through a dedicated Thorne storefront for online access; solidcore members receive 15% off Thorne supplements.
• Tower28coreGTM or Marketing Partner · 1 April 2026Featured in solidcore's 2026 Core Collective. Tower 28 clean beauty products are offered to solidcore members with $10 off a $50+ online order.
• MetroNational and Radom CapitalminorStrategic or Co-development Partner · 1 February 2026Solidcore is among the first tenants announced for Greenside, an adaptive reuse mixed-use development at 1085 Gessner Road in West Houston co-developed by MetroNational and Radom Capital, converting 35,000 sq ft of warehouse space into a community hub with Honest Mary's, Leemoo, and Hiatus. Solidcore's West Houston entry is described as first-to-market.
• Dunkin'minorGTM or Marketing Partner · 1 January 2026Solidcore participated in promotional activations supporting Dunkin's Protein Milk launch, including partnership mentions in Dunkin's 'Dunk N' Pump' campaign with Megan Thee Stallion and bundled activations with Bala Bangles.
• Bala BanglesminorGTM or Marketing Partner · 1 January 2026Co-marketing partner in Dunkin's Protein Milk promotional activations alongside solidcore.
• ClassPasscoreChannel Partner/ Reseller/ Distributor · 1 May 2025Solidcore distributes its classes on the ClassPass marketplace, contributing to ClassPass's reported $1.6 billion injected into the global wellness economy since 2020. Solidcore operators report 29% revenue increase after six months on the platform with limited cannibalization concerns.
• WHOOPflagshipTechnology or Integration · 1 March 2025WHOOP, a Boston-based human performance wearable company, partnered with solidcore to launch a dedicated 'solidcore' activity in the WHOOP app that more accurately tracks solidcore's high-intensity, low-impact strength training workouts. WHOOP validated the tracking technology with solidcore coaches and integrated biomechanics-based measurements to quantify musculoskeletal strain, addressing the inability of standard wearables to capture controlled, low-heart-rate movements.
• University of Virginia Darden School of BusinessminorGTM or Marketing Partner · 1 January 2024Solidcore partnered with UVA's Business School to prepare students for fitness careers, per coverage on Athletech News.
• Washington Mystics (WNBA) and Alysha ClarkminorGTM or Marketing Partner · 1 September 2022Solidcore was named the Official Offseason Workout for The Washington Mystics in 2022, announcing a partnership with guard Alysha Clark.
• Bilt RewardscoreChannel Partner/ Reseller/ Distributor · 1 January 2022Solidcore partners with Bilt Rewards to offer signature classes to Bilt's 109 million renter members across the U.S., enabling solidcore access through the Bilt platform.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Club Pilates: Club Pilates is a franchised, reformer-based group Pilates studio operator with 700+ U.S. locations. It is the most direct competitor to solidcore in reformer-based boutique fitness, with similar target customer and class format, differentiated primarily by franchise model and broader Pilates focus.
• SLT (Strengthen Lengthen Tone): SLT is a boutique fitness chain that delivers 50-minute strength-training classes on proprietary Megaformer machines, with a methodology and slow-twitch muscle-focus very similar to solidcore. Comparable small-group, coach-led, premium-priced boutique experience.
• Barry's: Barry's is a premium boutique fitness brand combining HIIT strength and treadmill cardio in coach-led small-group classes. Comparable premium positioning, urban/suburban U.S. footprint, and celebrity-driven brand.
• Pure Barre: Pure Barre is a national, franchised boutique fitness chain offering small-group barre-based classes. It targets a similar female-skewing, premium-priced, boutique strength-training customer as solidcore.

Emerging players

• Lagree Fitness: Lagree Fitness is the manufacturer of the Megaformer and licenses the Lagree method to independent studios globally. Comparable to solidcore's proprietary reformer + slow-twitch methodology combination, though it operates as a licensor to independent operators rather than a corporate-owned chain.
• Peloton: Peloton is a connected fitness and media company selling bikes, treadmills, and a streaming strength/yoga/pilates library. It is an at-home substitute for solidcore's boutique strength-training experience and competes for the same discretionary fitness dollar.

Broad incumbents

• Orangetheory Fitness: Orangetheory is a national, franchised HIIT/strength-conditioning boutique fitness brand with 1,500+ studios globally. It overlaps with solidcore on small-group, coach-led, heart-rate-driven strength training and similar target customer.
• F45 Training: F45 is a global, franchised functional-training boutique fitness brand with thousands of studios. It competes for the same time-efficient, coach-led, strength-conditioning customer that solidcore targets, at a comparable price point.
• CorePower Yoga: CorePower Yoga is a large, owned-studio boutique fitness brand offering yoga and strength training classes. It overlaps with solidcore in coach-led boutique strength conditioning at a premium price tier.
• Equinox: Equinox is a premium, full-service fitness club operator with in-house group fitness and Pilates programming. Comparable premium positioning and urban/suburban footprint, with a broader service offering than solidcore.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/solidcorestudio
• Instagraminstagram.com/solidcore
• Xx.com/solidcorestudio
• LinkedInlinkedin.com/company/solidcore

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries24 records

Funding overview

Funding rounds3 records

Investors3 records

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 [solidcore]