Grindtime Fitness LLC

What Grindtime Fitness LLC does

Grindtime Fitness LLC, operating under the brand "Grind Time Fitness Detroit," is a privately held, single-location group fitness studio based in Detroit, Michigan, with a team of approximately five employees. The company's core product is in-person group HIIT and strength training classes held three evenings per week (Tuesday, Wednesday, and Thursday at 7pm), with each session running 45 minutes to one hour and a 15-minute grace period before start. Class membership and scheduling are managed through the third-party FitnessGM platform (fitnessgm.com), and digital product sales are processed through a Shopify storefront with ShopPay installment support.

The business operates a mixed revenue model combining recurring subscriptions, single-session drop-ins, and digital product sales. Membership tiers include an All Access plan at $120/month with weekly BMI tracking, a Senior Citizen plan at $120/month for adults 65+, and a Drop-In single class at $15. A 6-month training package is offered at $600 with installment billing through ShopPay, and a digital intermittent fasting e-book authored by John Houston Smith is sold for $10. Children ages 8+ may attend classes free with a parent, and the studio accepts debit, credit, and cash payments.

Customer segments are horizontal and persona-driven, targeting general fitness enthusiasts (primary), seniors seeking age-appropriate training, and families. The studio is positioned around a friendly, non-intimidating community environment and includes weekly BMI tracking as a quantifiable outcome for members. There is no evidence of institutional investment, partnerships beyond standard SaaS vendors, patents, awards, or AI/ML capabilities; the operating footprint is confined to Michigan with no stated global presence.

Name

Grindtime Fitness LLC

Legal name

Grindtime Fitness LLC

Website

https://grindtimefitnessllc.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Grindtime Fitness LLC is a privately held Detroit-based group fitness studio offering in-person HIIT and strength training classes three evenings per week, serving local adult and senior members through monthly subscriptions, drop-ins, and a digital e-book.

Ownership category

akta.pro rank

Product category

Fitness Training Services

NAICS

Fitness and Recreational Sports Centers (71394)

SIC

Services-Membership Sports & Recreation Clubs (7997)

akta.pro industry

PRIMARYHSADABAB

Strength & Conditioning Bootcamps

Home & Personal Services/Fitness, Wellness & Personal Training/Group Fitness & Bootcamps

SECONDARYHSADABAI

Senior/Low-Impact Group Fitness

Home & Personal Services/Fitness, Wellness & Personal Training/Group Fitness & Bootcamps

SECONDARYHSADAAAC

Weight Loss & Body Transformation Training

Home & Personal Services/Fitness, Wellness & Personal Training/Personal Training (In-Person & Virtual)

Keywords

• Group fitness classes
• HIIT training sessions
• Strength training classes
• Fitness membership programs
• Personal training services

Headquarters

HQ city

Detroit

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Monthly Membership - All Access: Recurring monthly subscription providing unlimited access to HIIT/Strength training group classes on Tuesdays, Wednesdays, and Thursdays. Includes weekly BMI tracking.
2. Monthly Membership - Senior Citizen: Recurring monthly subscription for seniors ages 65+ providing unlimited access to HIIT/Strength training group classes. Same benefits as standard membership at $120/month.
3. Drop-In Class: One-time $15 fee for single HIIT/Strength training group class attendance.
4. 6-Month Training Package: One-time purchase of $600 for 6 months of training with pay-in-installment option through ShopPay. Saves $120 compared to monthly subscriptions.
5. Intermittent Fasting E-Book: Digital product sale at $10 for an e-book written by John Houston Smith on intermittent fasting and fitness journey guidance.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Grindtime Fitness LLC operates a brick-and-mortar group fitness studio in Detroit, Michigan, offering in-person HIIT and strength training classes on Tuesday, Wednesday, and Thursday evenings at 7pm. The studio provides multiple access options including an unlimited monthly All Access membership ($120/month), a Senior Citizen membership for ages 65+, $15 drop-in single classes, and a 6-month training package ($600) with installment payment options through ShopPay.

Product overview

Grindtime Fitness LLC operates a brick-and-mortar fitness studio offering group HIIT and strength training classes as its core service, with membership tiers including unlimited monthly access, senior citizen discounts, and single drop-in options. The company also offers a 6-month training package with installment payment options and an intermittent fasting e-book authored by John Houston Smith as supplementary digital products. The product portfolio consists of in-person fitness services supported by third-party membership management through fitnessgm.com, with digital products sold through the company's Shopify-based e-commerce platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Group HIIT/Strength Training Classes

Quantifiable outcome

• Weekly BMI tracking included with membership for body composition monitoring

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Recent moves5 records

Expansion highlights3 records

Direct peers

• F45 Training: Global franchise offering group functional/HIIT training classes in a studio setting. Directly comparable to Grindtime's group HIIT/strength model, though F45 operates at significantly larger scale and brand recognition.
• Barry's Bootcamp: Premium boutique studio delivering group strength and cardio interval workouts. Overlaps with Grindtime's HIIT/strength curriculum, though at higher price points and a far broader footprint.
• Orangetheory Fitness: National chain running group HIIT classes with heart-rate-based tracking in a membership model. Closely comparable in class format, pricing tier, and recurring subscription structure to Grindtime's $120/month offering.
• Camp Gladiator: Group fitness training program offering outdoor and studio-based HIIT/strength classes. Comparable community-led, group-training model with subscription-style membership options.
• Title Boxing Club: Franchise offering group fitness classes (boxing-based HIIT) in a studio setting. Comparable recurring membership model and group class structure targeting similar adult fitness enthusiasts.
• CrossFit (Affiliates): Network of affiliate gyms running group functional fitness and strength-conditioning classes. Mirrors Grindtime's group strength/HIIT class format and community-led positioning, with similar target customer profile.

Broad incumbents

• SoulCycle: Boutique indoor cycling brand known for community-led, instructor-driven group classes. Comparable premium boutique group-fitness positioning and subscription/class-pack revenue model, though focused on cycling.
• Life Time Fitness: Premium nationwide fitness operator with extensive group class programming and amenities. Comparable on the group fitness class side but operates at much larger scale with multi-service offerings.
• Crunch Fitness: Large national gym chain offering group fitness classes alongside traditional gym access. Overlaps with Grindtime on group HIIT/strength programming but serves a broader fitness customer with a wider facility mix.

Emerging players

• Pure Barre: Franchise offering group strength-focused fitness classes in a boutique studio setting. Comparable small-group, instructor-led format and community-driven positioning, though focused on barre rather than HIIT.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/grindtime-fitness-llc

Revenue estimate

Valuation estimate

Number of profiles

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 Grindtime Fitness LLC