SYSTEMM  /  INVESTOR PORTAL
PRIVATE · AUTHORIZED VIEWER · MMXXVI
— FOR PRIVATE REVIEW  /  ROUND ONE  /  SEED  /  Q3 2026
OBS · 1532Z
ATM · 1013 hPa
STATION · NYC
RH · 38%
REGISTER · MMXXVI
SIG · 0x6E4F
PRIVATE REVIEW
ROUND ONE · SEED
SYSTEMM
Built to Specification.
SYSTEMM HQ / NEW YORK CITY OBS 1532Z / MAY MMXXVI
— THE SPACE / BEFORE

An empty floor at 666 Greenwich.

2019 / RAW SHELL / HISTORIC ARCHIVE BLDG / TWO FLOORS
THRONE atelier — before · raw space at 666 Greenwich
SHELL · 666 GREENWICH ST · NYC · 2019
What we started with. Two floors inside the Historic Archive Building at 666 Greenwich Street — a landmarked structure in the West Village. White columns, arched windows, the bones of a 19th-century New York institution. We built the atelier inside this.
— THE ATELIER / AFTER

What we built at room scale.

666 GREENWICH ST · NYC / THRONE PERFORMANCE / 2020–2023
THRONE main gym floor
01
GYM · PROTEUS RIG · COLUMN HALLWIDE
Atmospheric blue mode
02
BLUE MODE · NIGHT
Recovery lounge
03
LOUNGE · LE CORBUSIER · SHEER LINEN
Front desk reception
04
RECEPTION · USM HALLER · BERTOIA
Locker room
05
LOCKER · CARBON BLACK · KEYPAD
Performance lab
06
PERFORMANCE LAB · TRUSS · TREADMILL · 3D MOTIONWIDE
THRONE was built. Photographed. Operated. SYSTEMM inherits this vocabulary — classical columns, industrial bones, curated black, sheer linen — and ships it at category scale.
— THE SOFTWARE / PART OF THE BUILD

Shipped alongside the space.

MEMBERS APP · COACHES APP · MEMBER MGMT · WEARABLE SYNC
THRONE wasn't just a room — it was an integrated build. Software, hardware, space, and operations, shipped together. The receipts: a member app, a coach app, an admin console, and a wearable sync layer.
iOS · Coach iPad · Admin Web
DARK · MAGENTA · YELLOW
LIVE FROM 2022
Member dashboard
01  /  MEMBER · HOMEiOS
Session countdown · token balance · upcoming.
Live session
02  /  LIVE SESSIONiOS
Coach intake · breathing · power · accessory log.
Coach session review
03  /  COACH · REVIEWiPad
Post-session adaptation, load + sets logged.
Program builder
04  /  PROGRAM BUILDERiPad
Multi-day periodization · adaption blocks.
Member management
05  /  ADMIN · MEMBERSWeb
Roster · payments · subscription · health info.
Wearable sync
06  /  WEARABLE SYNCiOS
Scepter cloud · device telemetry.
Built in-house at THRONE between 2020 and 2023. The same operating model — software + space + program — is what SYSTEMM ships at scale.
— LINEAGE / HOW WE GOT HERE

From THRONE to SYSTEMM.

2018 → 2026 / EIGHT YEARS
CHAPTER ONE · 2018–2023

THRONE Performance, built.

A 7,000 sq-ft atelier at 666 Greenwich Street. Force-plate testing, 3D analysis, sports-science lab. The proof that a single integrated practice could exist at room scale. Closed during COVID — the lessons stayed.

CHAPTER TWO · 2026 →

SYSTEMM, the integration.

What THRONE pointed at, at category scale. Clinic, publication, application. Same thesis — performance is integration — built as a system rather than a single room.

— THE VISION / WHAT COMES NEXT

SYSTEMM, built to spec.

NYC MIDTOWN · Q4 2026 / THE ROW × AMAN × F1
Member lounge with NYC skyline
01
MEMBER LOUNGE · NYC SKYLINE · RECOVERYWIDE
Reception
02
RECEPTION · CONCIERGE
Private treatment corridor
03
TREATMENT CORRIDOR · PRIVATE
Training + recovery
04
TRAINING + RECOVERY · INTEGRATED
Treatment room
05
TREATMENT ROOM · ARCHED LIGHT
Architecture
06
ARCHITECTURE · PURE FORM · WEST VILLAGEWIDE
Conceptual renders. The next instantiation of the atelier vocabulary — at the scale of an integrated practice. NYC Midtown opens Q4 2026.
— THE PRODUCT / WHAT YOU'RE LOOKING AT

Operator-grade software.

FOUR SURFACES / ONE SYSTEM
01  /  CLINICIAN DASHBOARDv3
Clinician Dashboard
Where the medical team works.Active members · panels · compounds
02  /  PROTOCOL BUILDERv3
Protocol Builder
How a member's stack is composed.Library · timeline · outcome curves
03  /  FRONT-DESK CONSOLEv3
Front Desk Console
The facility's nerve center.Check-in · sessions · prescriptions
04  /  MEMBER REPORTINGv3
Member Reporting
What the member sees.Trends · labs · protocol context
— THE MEMBER APP / IN THE HAND

The protocol, daily.

SIX SURFACES / ONE STACK
Every day, the member opens SYSTEMM and sees their spec in motion — dose, training, labs, nutrition, progress. The whole stack, instrumented.
iOS · Android
DARK · SF PRO · GOMME SANS
PETRONAS · BRASS · BONE
Home
01  /  HOMEv1
Compliance score · today's dose · weekly biomarkers.
Protocol
02  /  PROTOCOLv1
The stack. Adherence. Injection rotation.
Training
03  /  TRAININGv1
Today's session. Coach. Start.
Bloodwork
04  /  LABSv1
42 markers, range-charted, clinically annotated.
Nutrition
05  /  NUTRITIONv1
Macros, hydration, feeding window, supplements.
Progress
06  /  PROGRESSv1
Quarterly review. Body, strength, labs.
— STATE OF PLAY / THE ROUND

Where it stands.

AS OF MAY 2026
$3.7M
Round size
SEED · Q3 2026 CLOSE
$24.2M
Y3 revenue
44% EBITDA · 71% GM
8 YR
Practice
THRONE → SYSTEMM
Q3 2026
Target close
FACILITY OPEN Q4
— THE FOUNDERS / WHO IS BEHIND IT

Two people, ten years in.

MITCHELL MCCLELLAN · DR. PAT DAVIDSON
Mitchell McClellan
FOUNDER
Mitchell McClellan.
A decade of practice. Full-time at Equinox in under two months, top 100 globally year one. Performance Coach at Balyasny. Director of Performance at Paine Schwartz through the pandemic, traveling full-time with the CEO. Founded THRONE in 2018. Building SYSTEMM since 2024.
Dr. Pat Davidson
CHIEF SCIENCE OFFICER
Dr. Pat Davidson.
PhD in exercise physiology. Professor at Brooklyn College and Springfield. Two-time World Strongman qualifier, Team USA at the Arnold Classic. Pursuing IFBB pro. Author of three books including A Coach's Guide to Optimizing Movement. The science under every protocol.
SYSTEMM IS THE INTEGRATION THRONE ALWAYS POINTED AT.
— THE MODEL / UNIT ECONOMICS

Drag the sliders. Run the math.

INTERACTIVE / V0.1 / INTERNAL PREVIEW
— UNIT ECONOMICS · LIVEPETRONAS PALETTE · OBSIDIAN GROUND
Every output recomputes live. Share this page or fork it and plug in your own assumptions — the math is transparent.
— THE STRUCTURE / REVENUE FLOW

How the money moves.

CORPORATE STRUCTURE / IP LICENSE / MSO + PC
— REVENUE FLOW · DIAGRAMNOT LEGAL OR FINANCIAL ADVICE
SYSTEMM Revenue Flow
— THE VAULT / DOCUMENTS

Everything we'd send a colleague.

04 FILES / LAST UPDATED 27·05·26
01
Highlights.
Traction summary · top of mind.
2026 / 2 PP
PDF
OPEN →
02
The Two-Pager.
The thesis on two sides.
2026 / 2 PP
PDF
OPEN →
03
Revenue Model.
5-year projection · printable.
2026 / 1 PG + XLS
PDF
OPEN →
04
Use of Funds.
Where the $3.7M goes.
2026 / 1 PG
PDF
OPEN →
— THE LETTER / FROM MITCHELL

If you're reading this, we've met.

MAY 2026 / PRIVATE

Every chapter of my career has pointed at the same thing — the gap between training and medicine, the gap between data and discipline, the gap between what the world's most ambitious people are told to do and what actually compounds.

THRONE was the first attempt at closing it. Seven thousand square feet at 666 Greenwich. Force-plate testing, 3D analysis, sports-science lab. The room you see in the photos above is the room we built. It taught me what the integration looks like at room scale.

SYSTEMM is the integration at category scale. Clinic, publication, application. The same thesis, run as a system rather than a single room. Three revenue streams that compound, one operating standard that holds.

The materials in this vault are not a pitch. They are what I would send to a colleague. The model is live. The room was real. The next room opens in 2026.

— Mitchell McClellan
FOUNDER / SYSTEMM HOLDINGS
BOOK A CALL  → EMAIL MITCHELL  →