The Stack System
- Company typePrivate
- Founded-
- HeadquartersPhoenix, United States
- Headcount—
- GTM typeB2C
- OfferingHardware or Manufacturing
The Stack System firmographics
Firmographics- Name
- The Stack System
- Legal name
- The Stack System, LP
- Website
- https://thestacksystem.com
- Company type
- Private
- Operating status
- Operating
- Ownership category
- akta.pro rank
The Stack System industry classification
Industry- Product category
- Golf Training Equipment
- NAICS
- Sporting Goods Retailers (45911), Sports and Recreation Instruction (611620), Sporting and Athletic Goods Manufacturing (33992)
- SIC
- Sporting & Athletic Goods, Nec (3949)
- akta.pro primary industry
- Golf Training Aids & Swing Analytics Retail (CRAMAGAG)
- akta.pro secondary industries
- Golf Simulators, Nets & Practice Equipment Retail (CRAMAGAI), Strength & Conditioning / Athletic Performance Training (HSADAEAB)
Keywords
Where The Stack System is headquartered
LocationHeadquarters
- HQ city
- Phoenix
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
The Stack System business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Marketing or Sales, Operations, Personnel
Revenue model
- Hardware Sales - Golf: One-time sale of TheStack training clubs ($299 adult, $199 junior after $100 discount) and Stack Radar launch monitor ($289). Bundle packages available ($499 golf bundle, $887 adult+junior+radar).
- Hardware Sales - Baseball: One-time sale of TheStack Bat training system ($399 pro/Youth versions). Baseball+Golf multisport family bundle ($699).
- TheStack Premium Membership: $129/year subscription. Includes Speed Training, Stack Stats, Stack Wedging, Practice Tracker, Stack Putting, and Learning Library. Free 1-year membership included with hardware purchase.
- TheStack Speed Membership: $99/year subscription. Includes Stack Speed Training, Stack Wedging, Practice Tracker, Stack Putting, and Learning Library.
- TheStack Scoring Membership: $99/year subscription. Includes Stack Stats, Stack Wedging, Practice Tracker, Stack Putting, and Learning Library. For users without hardware who want putting and wedge features.
- Stack Putting Standalone: $59/year subscription for putting-only access without owning hardware.
- Coaches License: Wholesale license allowing coaches to manage multiple athletes. Purchased through thestackwholesale.com.
- Merchandise: Apparel and accessories including hoodies ($39), t-shirts, caddy towels ($30), golf brushes ($29), and gift certificates ($100+).
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | TheStack Premium Membership - Full access |
| Subscription | Annual | TheStack Speed Membership - Core training features |
| Subscription | Annual | TheStack Scoring Membership - Data and stats focus |
| Subscription | Annual | Stack Putting Standalone |
| One time/ perpetual license | Pay-as-you-go | TheStack Hardware (Adult) |
| One time/ perpetual license | Pay-as-you-go | TheStack Hardware (Junior) |
| One time/ perpetual license | Pay-as-you-go | Stack Radar |
| One time/ perpetual license | Pay-as-you-go | TheStack + Stack Radar Bundle |
| One time/ perpetual license | Pay-as-you-go | Adult & Junior Stack + Stack Radar Bundle |
| One time/ perpetual license | Pay-as-you-go | TheStack Bat |
| One time/ perpetual license | Pay-as-you-go | Stack Baseball & Golf Bundle |
| One time/ perpetual license | Pay-as-you-go | Third-party Launch Monitors |
| Subscription | Annual | Coaches License |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels11 records
The Stack System product offering
Product offeringCore offering
The Stack System sells precision-engineered weighted training hardware (golf clubs and baseball bats) paired with an AI-driven mobile application that delivers personalized speed training programs. The system combines variable-inertia weighted clubs, Bluetooth-enabled launch monitors, and biomechanics-based software to enable golfers and baseball players to increase swing speed through structured 6-10 week training protocols. Hardware purchases include 1-year free Premium Membership, after which users subscribe annually for ongoing training programs, stats tracking, and instructional content.
Product overview
TheStack System is a golf swing speed training platform combining hardware (precision-engineered training clubs with stackable weights), proprietary mobile apps, and A.I.-driven personalized training programs. The core product ecosystem includes TheStack training hardware (Adult/Junior), Stack Radar launch monitor, TheStack App (iOS/Android/Chrome Web), and specialized modules including Stack Wedging, Stack Putting, Stack Stats, Practice Tracker, and Learning Library. Additional offerings include TheStack Bat for baseball, TheStack Accelerator Program for juniors, membership tiers ($59-$129/year), branded merchandise, and third-party launch monitors (Rapsodo, Mevo). The platform serves recreational golfers, Tour professionals, and coaches through consumer retail, wholesale/coach licensing, and family bundle options.
Differentiator
Problem solved
Functional benefit
Brands
- Stack Baseball: Bat speed training system for baseball and softball players, featuring specialized weighted training bats and corresponding app.
- Stack Radar
- TheStack Bat
Products and services
- TheStack Adult Training Hardware Precision-engineered golf training club (41.5 inches) with 5 milled Stack weights enabling 30 weight combinations (0g-300g), paired with TheStack App for personalized AI-driven speed training programs. Includes dual-purpose weight case/phone stand. Priced at $299.
- TheStack Junior Training Hardware Junior version of the golf swing speed training system at 38.5 inches long, designed for young golfers ages 7+ with driver length 43 inches or shorter. Priced at $199 (regularly $299).
- Stack Radar Launch Monitor Portable Bluetooth launch monitor measuring swing speed and ball speed, calculating estimated carry distance and smash factor. Adjustable speed trigger threshold (25, 35, 45, 55 mph). Powers Stack Wedging feature. Priced at $289 with 90-day free trial to Stack Wedging included.
- TheStack Bat Speed Training System Speed training system for baseball and softball featuring 5 milled Stack weights (0g-400g), integrated Stack Sensor measuring bat speed, and AI-driven customized programs. Available in Pro and Youth versions. Priced at $399 with 1-year membership included.
- TheStack + Stack Radar Bundle Combined package of TheStack adult training hardware with Stack Radar launch monitor at $499 (savings of $89 over $588 individual prices). Includes 1-year Premium Membership.
- Stack Baseball & Golf Multisport Family Bundle Multi-sport family bundle combining golf speed training for adults/juniors with bat speed training for baseball/softball players at $699 (savings of $288 over $987 individual prices). Each user has their own programs in the app.
- Adult & Junior Stack + Stack Radar Family Bundle Family bundle with one Adult Stack, one Junior Stack, and Stack Radar at $587 (savings of $300 over $887 individual prices).
- TheStack Premium Membership (Annual Subscription) Annual subscription at $129/year ($99/year Speed or Scoring tiers, $59/year Putting-only) including Stack Speed Training, Stack Stats, Stack Wedging, Practice Tracker, Stack Putting, and Learning Library. One year free with hardware purchase.
- TheStack Coaches License Wholesale program for golf coaches and instructors allowing them to track and manage multiple athletes' training data through TheStack platform. Purchased from thestackwholesale.com with annual licensing terms.
- TheStack Mobile Application Mobile application powering all TheStack training features including speed training, stats tracking, wedge practice, putting analysis, and instructional video library. Available on iOS with full features, Android and Chrome Web with Speed Training and Learning Library. Rated 4.9 with 5,500+ App Store reviews.
- Rapsodo MLM2PRO Premium Launch Monitor Third-party premium launch monitor sold through TheStack storefront at $599.99 (sale price $699.99). Integrates with TheStack App for speed training sessions via Bluetooth.
- Mevo Gen2 Portable Launch Monitor TheStack Adult Training Hardware Precision-engineered golf training club (41.5 inches) with 5 milled Stack weights enabling 30 weight combinations (0g-300g), paired with TheStack App for personalized AI-driven speed training programs. Priced at $299.
- TheStack Branded Merchandise Branded apparel and accessories including hoodies ($39), t-shirts, caddy towels ($30), golf brushes ($29), and gift certificates ($100+).
Quantifiable outcome
- Average 4.5 MPH bat speed gain for baseball players completing at least 1 program (based on 500,000+ tracked swings)
- +3 more outcomes
Companies that use The Stack System
Customer profileNamed customers9 records
Segments5 records
Ideal customer profiles5 records
The Stack System technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability2 records
Feature7 records
The Stack System partnerships and signals
Strategic signalPartnerships
17 partnerships are on record, tiered core, minor and regional.
- RapsodocoreIntegration partnership allowing Rapsodo MLM2PRO launch monitor to connect with TheStack App for speed training sessions. Users can authenticate premium membership through Rapsodo app and connect device for seamless data transfer. Requires firmware version 3.8.47 or newer and app version 1.26.5+.
- GarmincoreIntegration with Garmin Approach R10 launch monitor. Requires R10 firmware version 4.40 or newer. Users connect through Garmin Golf App before Stack sessions, then app connects automatically for swing speed measurement.
- Mevo+ / Mevo Gen2 (Flightscope)coreIntegration with Mevo+ and Mevo Gen2 launch monitors from Flightscope. Requires WiFi connection to Mevo device and iOS app. Provides swing speed, ball speed, and distance metrics through TheStack App.
- Dr. Sasho MacKenziecoreCo-founder and biomechanist behind TheStack System. Golf's leading biomechanist with research driving the science of speed generation. Provides Learning Library content (60+ videos), science of speed web-series, and ongoing R&D partnership.
- Marty JertsoncoreCo-founder, PGA of America member, and engineer at PING for 20 years. Lead designer of G30 and G410 drivers, co-inventor of iPING Putting App. Named inventor on 130+ patents. Contributes engineering expertise and Tour player relationships.
- Keith BennettminorGolf instructor featured in product demonstration videos for speed training, wedging, and putting features. Represents coaching perspective in product education content.
- PINGminorConnection through Marty Jertson (PING engineer). PING staffers including Matt Fitzpatrick use TheStack. Marty Jertson appeared on Fully Equipped podcast discussing Stack System and PING staff players.
- ArccosminorGolf's #1 game tracking platform partnership. Stack members receive 14 FREE Smart Sensors and 45-Day FREE Trial through exclusive deal via activate.arccosgolf.com/?affiliate=tss
- FitForGolfminorFitness platform partnership. Stack members save 20% on monthly or annual Fit For Golf subscription using code FFGxStack.
- PayntrminorGolf footwear and accessories partnership. Stack members save 20% using code Stack20 at payntrgolf.com.
- GPODminorPhone mount manufacturer partnership. Stack members save 10% using code GPOD10 on golf phone mounts.
- Net ReturnminorGolf and multisport practice net partnership. Stack members save 10% on practice nets at thenetreturn.com/TheStack.
- Caddy SplashminorGolf brush and towel accessory partnership. Stack members save 15% using code Spin15 at caddysplash.com.
- BallnamicminorOnline ball fitting tool partnership. Stack members save 20% using code STACK20 at ballfitting.com.
- Golf Swing Systems UKregionalUK exclusive retail partner for TheStack products. Customers directed to golfswingsystems.co.uk for UK purchases.
- SwingSpeed.euregionalEU retail partner for TheStack products. Customers directed to swingspeed.eu for European purchases.
- The House of Golf (Australia)regionalAustralian retail partner for TheStack products. Customers directed to houseofgolf.com.au for Australian purchases.
Scale indicators11 records
Recent moves6 records
Expansion highlights8 records
The Stack System competitors and assessment
Company assessmentDirect peers
- Foresight Sports: Foresight Sports manufactures GCQuad, GC3, and other high-end launch monitors used by coaches and fitters. It competes in the portable launch-monitor category where Stack Radar plays and shares the same performance-data-driven customer.
- Arccos Golf: Arccos offers shot tracking, Strokes Gained analytics, and AI-powered caddie features for golfers. It overlaps directly with TheStack's Stack Stats and Stroke-Gained-based putting/wedge analytics, and the two companies have a formal partnership through the Stack Membership Perks program.
- FlightScope / Mevo: FlightScope's Mevo and Mevo+ portable launch monitors target the same prosumer segment as Stack Radar. TheStack has a direct integration with Mevo+ and Mevo Gen2, indicating close product-level overlap with similar training-app ambitions.
- Swing Catalyst: Swing Catalyst sells dual-camera swing-analysis systems and pressure-plate hardware used by elite coaches. It targets the same coach-and-instructor customer segment that TheStack addresses with its Coaches License wholesale channel.
- Rapsodo: Rapsodo sells the MLM2PRO and other consumer/prosumer launch monitors with integrated shot and swing analytics. TheStack both integrates with Rapsodo devices and resells them, positioning the two as complementary within the same consumer golf-tech stack.
- Blast Motion: Blast Motion provides sensor-based swing analysis for golf, baseball, and tennis, directly overlapping with TheStack's baseball-and-golf speed-training product line and Strokes Gained-style analytics.
- Trackman: Trackman is the dominant professional-grade launch monitor and simulator brand, with deep penetration on PGA Tour ranges. It competes with Stack Radar in the launch-monitor category and overlaps with TheStack's swing-measurement and training ecosystem.
Broad incumbents
- GOLFTEC: GOLFTEC operates the largest chain of golf instruction centers with proprietary digital coaching tools and swing-measurement bays. While not a direct product competitor, it is a substitute for tech-enabled golf instruction and competes for coach and amateur-player wallet share.
- Garmin Golf: Garmin's Approach R10 launch monitor and Garmin Golf app compete broadly in the portable launch-monitor and golf-stats space. Garmin's deep hardware R&D, marketing budget, and global distribution make it the most formidable incumbent adjacent to TheStack's positioning.
Emerging players
- SwingU: SwingU offers GPS rangefinder, shot tracking, and stroke-tracking functionality for amateur golfers. It competes with TheStack's Stack Stats module for the stats-and-improvement consumer, though without the proprietary speed-training hardware.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
The Stack System social profiles
Digital presenceThe Stack System financial estimates
Financial estimateRevenue estimate
Valuation estimate
The Stack System leadership team
Management profileNumber of profiles
Profiles2 records
The Stack System funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
The Stack System 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 The Stack System
What does The Stack System do?
The Stack System sells precision-engineered weighted training hardware (golf clubs and baseball bats) paired with an AI-driven mobile application that delivers personalized speed training programs. The system combines variable-inertia weighted clubs, Bluetooth-enabled launch monitors, and biomechanics-based software to enable golfers and baseball players to increase swing speed through structured 6-10 week training protocols. Hardware purchases include 1-year free Premium Membership, after which users subscribe annually for ongoing training programs, stats tracking, and instructional content.
Is The Stack System a public or private company?
The Stack System is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was The Stack System founded?
The Stack System was founded in -1.
Where is The Stack System based?
The Stack System is headquartered in Phoenix, United States, in the North America region.
How does The Stack System make money?
Eight revenue lines are on record. Hardware Sales - Golf is the primary driver. The others are hardware Sales - Baseball, theStack Premium Membership, theStack Speed Membership, theStack Scoring Membership, stack Putting Standalone, coaches License and merchandise.
Who are The Stack System's main competitors?
Direct peers on record are Foresight Sports, Arccos Golf, FlightScope / Mevo, Swing Catalyst, Rapsodo, Blast Motion and Trackman. Broad incumbents are GOLFTEC and Garmin Golf. SwingU is listed as an emerging player.
Does The Stack System have an API?
No public API is recorded for The Stack System.
What industry is The Stack System in?
The Stack System's product category is Golf Training Equipment. Its primary akta.pro industry code is CRAMAGAG, Golf Training Aids & Swing Analytics Retail, with a secondary code of CRAMAGAI, Golf Simulators, Nets & Practice Equipment Retail. Its NAICS code is 45911 and its SIC code is 3949.