← back to the ranked tracker

National network directory

Every paid Phase-1 / healthy-volunteer CRO network this tool tracks — sites, portal links, and phone numbers — rendered straight from data/networks.json. Pay is always “up to”; payout timing and exact nights are almost never posted online — that's what the call script below is for.

ICONiconstudies.com

verified 2026-08-08
portal iconstudies.com/All-Clinical-Research-Studies/
phone varies by site
SiteHubPortalPhone
Salt Lake City, UTSLCiconstudies.com/All-Clinical-Research-Studies/varies by site
San Antonio, TXSAiconstudies.com/All-Clinical-Research-Studies/varies by site
Lenexa, KSLENiconstudies.com/All-Clinical-Research-Studies/varies by site

PPD / Thermo FisherTrialmed

verified 2026-08-08
portal trialmed.com/find-a-study/
phone 877-362-2608
SiteHubPortalPhone
Austin, TX
early (confinement)
AUStrialmed.com/find-a-study/877-362-2608
Las Vegas, NV
early (confinement)
LVtrialmed.com/find-a-study/877-362-2608
San Antonio, TX
late-phase outpatient only
SAtrialmed.com/find-a-study/877-362-2608

ppd.com 'Participate' routes here. Highest single check found (Vegas 3119492-MAD \$40,400).

Fortrea

verified 2026-08-08
portal fortreaclinicaltrials.com/
phone 1-866-429-3700
SiteHubPortalPhone
Dallas, TXDFWfortreaclinicaltrials.com/1-866-429-3700
Daytona Beach, FLFLfortreaclinicaltrials.com/1-866-429-3700
Madison, WIWIfortreaclinicaltrials.com/1-866-429-3700

Celerionhelpresearch.com

verified 2026-08-08
portal helpresearch.com/
phone 1-866-348-4859
SiteHubPortalPhone
Lincoln, NELINChelpresearch.com/1-866-348-4859
Tempe, AZAZhelpresearch.com/1-866-348-4859

Altasciences

verified 2026-08-08
portal per-site subdomains above
phone per site
SiteHubPortalPhone
Overland Park, KSLENparticipantskc.altasciences.com/913-213-2970
Cypress / Los Angeles, CASOCALparticipantsla.altasciences.com/pending
Montreal, QC (Canada)MTLparticipantsmtl.altasciences.com/etudes-disponibles514-381-2546

Spaulding Clinicalspauldingpays.com

verified 2026-08-08
portal spauldingpays.com/
phone 1-800-597-4507
SiteHubPortalPhone
West Bend, WIWIspauldingpays.com/1-800-597-4507

'Solar' = \$6,625 / 4 nights, standout velocity.

Nucleus Network

verified 2026-08-08
portal nucleusnetwork.com/participants/find-a-trial
phone 612-315-6490
SiteHubPortalPhone
Minneapolis, MNMSPnucleusnetwork.com/participants/find-a-trial612-315-6490

Highest open study is female-only.

Frontage Clinical Services

verified 2026-08-08
portal www.frontagelab.com/enroll-in-a-study/
phone 1-877-298-9071
SiteHubPortalPhone
Secaucus, NJNJwww.frontagelab.com/enroll-in-a-study/1-877-298-9071

Best East-Coast healthy-volunteer pay.

BioPharma Services

verified 2026-08-08
portal biopharmaservices.com/volunteers/
phone 416-747-8484
SiteHubPortalPhone
Toronto, ON (Canada)TORbiopharmaservices.com/volunteers/416-747-8484

Mostly Ontario residents (operational, not a bar). US citizen w/ passport typically OK — confirm.

Worldwide Clinical Trials

verified 2026-08-08
portal www.worldwide.com/participate-in-a-study/
phone 210-635-1515
SiteHubPortalPhone
San Antonio, TXSAwww.worldwide.com/participate-in-a-study/210-635-1515

Get on the healthy-volunteer list for the next panel.

Clinical Pharmacology of Miami (CPMI)

verified 2026-08-08
portal cpmiclinical.com/
phone 305-817-2900
SiteHubPortalPhone
Miami, FLFLcpmiclinical.com/305-817-2900

QPS

verified 2026-08-08
portal miamiresearch.com/
phone 305-722-4440
SiteHubPortalPhone
South Miami, FLFLmiamiresearch.com/305-722-4440

Biotrial

verifyverified 2026-08-08
portal US recruiting redirects to https://trialmed.com/find-a-study/
phone 973-388-2848
SiteHubPortalPhone
Newark, NJNJUS recruiting redirects to https://trialmed.com/find-a-study/973-388-2848

JBR / Jean Brown Research (CenExel)

portal pending (West/SLC pull)
phone pending
SiteHubPortalPhone
Salt Lake City, UTSLCpending (West/SLC pull)pending

CenExel's healthy-volunteer arm = JBR in SLC. West/SLC agent detail pending.

DM Clinical Research

verified 2026-08-08
portal dmclinicaltrials.com/
phone 281-517-0550
SiteHubPortalPhone
Houston / Dallas / San Antonio, TXDFWdmclinicaltrials.com/281-517-0550

Phase 2-4 outpatient community trials — NOT a Phase-1 healthy-confinement unit. Deprioritize.

Innovaderm Research

verified 2026-08-08
portal innovaderm.com/research-participant/
phone 514-521-3111
SiteHubPortalPhone
Montreal, QC (Canada)MTLinnovaderm.com/research-participant/514-521-3111

Dermatology PATIENT CRO; one low-pay ($615 CAD) healthy slot. Deprioritize.

KGK Science

verified 2026-08-08
portal kgkscience.com/participants/
phone email sales@kgkscience.com
SiteHubPortalPhone
London, ON (Canada)TORkgkscience.com/participants/email sales@kgkscience.com

Nutraceutical/supplement studies, low/undisclosed pay. Deprioritize.

Discovered — not yet verified

Found by crawling jalr.org's clinic directory and diffing it against the confirmed list above (scripts/discover-networks.mjs). These are names and locations only — nobody has called or visited yet, so there is no pay, eligibility, or study data for any of them. Treat each one as a lead to check, not a listing to trust.

AbbVie

discovered — not yet verified

Grayslake, IL

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Analab

discovered — not yet verified

Lenexa, KS

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Axis Clinicals

discovered — not yet verified

Fargo, ND

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

BioPharma Services

discovered — not yet verified

St. Louis, MO

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Clinical Trials Center

discovered — not yet verified

High Point, NC

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Clinilabs

discovered — not yet verified

Eatontown, NJ · New York City, NY

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

CVD

discovered — not yet verified

Baltimore, MD

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Inflamax Research

discovered — not yet verified

Neptune, NJ

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

IQVIA (QuintilesIMS)

discovered — not yet verified

Overland Park, KS

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

JCCT

discovered — not yet verified

Lenexa, KS

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Medpace

discovered — not yet verified

Cincinnati, OH

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

New Horizons Clinical Research

discovered — not yet verified

Cincinnati, OH

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

NOCCR

discovered — not yet verified

Knoxville, TN

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Novum

discovered — not yet verified

Las Vegas, NV · Fargo, ND

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Ohio Clinical Trials

discovered — not yet verified

Columbus, OH

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Parexel

discovered — not yet verified

Baltimore, MD

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Parexel Early Phase Unit

discovered — not yet verified

Glendale, CA

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Pfizer

discovered — not yet verified

New Haven, CT

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Pharma Medica Research

discovered — not yet verified

St Charles, MO

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Pharmaron

discovered — not yet verified

Baltimore, MD

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Prism Research

discovered — not yet verified

St Paul, MN

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

QPS Bio Kinetic

discovered — not yet verified

Springfield, MO

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Quotient Sciences

discovered — not yet verified

Jacksonville, FL · Miami, FL

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Syneos Health

discovered — not yet verified

Miami, FL

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

TKL Research

discovered — not yet verified

Fair Lawn, NJ

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Vince & Associates

discovered — not yet verified

Overland Park, KS

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Walter Reed Army Institute of Research

discovered — not yet verified

Baltimore, MD

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

WVUCPRC

discovered — not yet verified

Morgantown, WV

Found via jalr.org listing (2026-08-09). No pay, eligibility, or study data exists for this entry yet — confirm directly before relying on it.

Looking for other places to check, or where the “discovered” entries above come from? See Resources.

Screening call script

Pay is always "up to," and payout timing + exact nights are almost never published online — the call is where you get them. Read this off a card; log answers back into the study row.

Your stats (fill in your own, have them ready)

  • Sex, height, weight, BMI, approximate body fat %
  • Smoker status / nicotine use
  • General health; any condition that's a stated qualifier for a specific study (e.g. documented high

cholesterol) — mention it only for that study

  • Current meds / any weight-loss drugs (GLP-1) in the last 3 months
  • Willing to travel; flexible on dates within reason
  • (Have your DOB ready for the age-cap studies — e.g. any 18–40 study)

The five questions that decide it (ask every time)

  1. "What's the exact confinement — how many nights, and how many separate stays?"
  2. "How many in-person follow-up visits, and over how many weeks?" (the tail)
  3. "What's the BMI range for this one?" (confirm your own BMI fits — most floors are 18–18.5)
  4. "How and WHEN do you pay?" ← the money question, in three parts:

- Lump sum or paid per stay/visit as I go? - Do I get the full amount at the end of confinement, or only after the last follow-up visit? - How many days/weeks until the money actually hits (ClinCard, check, direct deposit)?

  1. "Any travel or lodging stipend?" (Fortrea pays $100/visit — ask everyone)
A $30k that settles 6 months out is worse bridge cash than a $15k that pays end-of-month. Q4 is how
you tell them apart. Log the answer as payout.settle_days — that drives the cash-velocity ranking.

Also confirm

  • "Am I eligible as a US citizen for this site?" (Canada studies — Montreal, Toronto)
  • "When's the next screening slot, and what does screening involve (bloodwork, fasting)?"
  • "What's the washout period — how long after the last dose before I can dose in another study?"

(Standard is ~30 days, longer for long-half-life drugs. Clinics enforce it via shared databases — Verified Clinical Trials (VCT) / CTSdatabase — that flag dual-enrollment across companies, so you CANNOT do two drug studies back-to-back. This determines what you can stack. Capture as washout_days.)

Call order (example — from the ranked tool, given your own base city and profile)

Work top-down by score. Example shortlist format, illustrating the pattern:

  1. [Network] — [in-city] (phone) — zero travel, high pay. Call first.
  2. [Network] — [city] — largest single payout; confirm nights/confinement length before committing.
  3. [Network] — [drivable city] (phone) — short stay, short drive → high velocity.
  4. [Network] — [city, study id] — already applying; confirm any friend/childcare coverage you've

arranged for this city.

  1. [Network] — [city] — short stay, travel stipend offered.
  2. [Network] — [city] (phone) — long visit tail; ask whether stays can be bundled.
  3. [Network] — [city, study id] — only relevant if you meet a stated special-population qualifier

(e.g. documented high cholesterol); drivable from an alternate base if applicable.

Log each: called → screening → enrolled, plus the 5 answers.