Fellow
Provider of CLIA-certified mail-in diagnostic semen testing and cryopreservation services. Operates a centralized laboratory workflow that stabilizes and ships patient-collected semen samples, applies a computational correction for degradation to report clinically validated semen metrics, integrates with clinics via a provider portal, and maintains a consented research biobank for seminal plasma biomarker discovery. The laboratory reports processing at scale (on the order of hundreds of thousands of tests) and publishes peer-reviewed validation and clinical studies.
Industries
Nr. of Employees
medium (51-250)
Products
Semen analysis kit
Mail-in kit for at-home semen specimen collection including preservation solution and prepaid shipping; laboratory semen analysis with secure electronic reporting.
Vasectomy test kit
Mail-in kit to test for presence of sperm after vasectomy; results formatted for provider confirmation and patient records.
Semen analysis + cryopreservation package
Combined mail-in semen analysis with regulated freezing and long-term storage under a tissue-banking registration; includes initial storage period and coordinated clinic fulfillment.
Fellow Semen Analysis + Cryopreservation
An at-home mail-in semen analysis combined with FDA-registered sperm cryopreservation and secure long-term storage.
Fellow Mail-in Semen Analysis
An FDA-cleared mail-in semen analysis kit processed in a CLIA-certified lab, providing clinical-grade results on par with in-lab testing.
The Fellow Vasectomy Test
An at-home, mail-in vasectomy clearance test kit that analyzes semen samples in a CLIA-certified lab to determine the presence of sperm following a vasectomy.
Semen analysis kit
Mail-in kit for at-home semen specimen collection including preservation solution and prepaid shipping; laboratory semen analysis with secure electronic reporting.
Vasectomy test kit
Mail-in kit to test for presence of sperm after vasectomy; results formatted for provider confirmation and patient records.
Semen analysis + cryopreservation package
Combined mail-in semen analysis with regulated freezing and long-term storage under a tissue-banking registration; includes initial storage period and coordinated clinic fulfillment.
Fellow Semen Analysis + Cryopreservation
An at-home mail-in semen analysis combined with FDA-registered sperm cryopreservation and secure long-term storage.
Fellow Mail-in Semen Analysis
An FDA-cleared mail-in semen analysis kit processed in a CLIA-certified lab, providing clinical-grade results on par with in-lab testing.
The Fellow Vasectomy Test
An at-home, mail-in vasectomy clearance test kit that analyzes semen samples in a CLIA-certified lab to determine the presence of sperm following a vasectomy.
Services
At-home specimen collection kit with preservation solution and prepaid shipping to a central CLIA-certified laboratory; clinical-grade report returned to patient and provider.
Mail-in assay for detection of sperm presence suitable for post-vasectomy confirmation, with electronic reporting to providers and patients and support for repeat testing workflows as needed.
Combined mailed specimen analysis with regulated cryopreservation and long-term storage under an FDA tissue-banking registration; coordinated shipping of stored samples to clinics on request.
Provider-facing web portal and account integrations for ordering kits, tracking patient testing status, receiving test reports, and operational onboarding support for clinics.
At-home specimen collection kit with preservation solution and prepaid shipping to a central CLIA-certified laboratory; clinical-grade report returned to patient and provider.
Mail-in assay for detection of sperm presence suitable for post-vasectomy confirmation, with electronic reporting to providers and patients and support for repeat testing workflows as needed.
Combined mailed specimen analysis with regulated cryopreservation and long-term storage under an FDA tissue-banking registration; coordinated shipping of stored samples to clinics on request.
Provider-facing web portal and account integrations for ordering kits, tracking patient testing status, receiving test reports, and operational onboarding support for clinics.
Expertise Areas
- Mail-in diagnostic semen analysis
- Post-vasectomy testing and compliance improvement
- Cryopreservation and tissue banking for seminal fluid
- Seminal-plasma biomarker discovery including cfDNA and methylation/RNA assays
Key Technologies
- Semen parameter analysis (motility, concentration, morphology, total motile count)
- Sample preservation chemistries for delayed analysis
- Transit-temperature management (gel packs, expedited shipping)
- Algorithmic degradation correction for delayed specimens
News & Updates
Closed a Series B financing round to scale mail-in semen analysis services and expand clinical partnerships and market offerings.
Announced expansion of mail-in semen analysis and clinic partnerships across New York following conditional approval.
Presented multiple studies at the American Urological Association 2026 Annual Meeting drawing on data from the company's clinical network and biobank.
Published validation study demonstrating correlation between 1-hour in-clinic analysis and mail-in delayed semen analysis testing.
Prospective study reporting compliance metrics from >16,000 men who received mailed post-vasectomy testing kits, with reported compliance rates at multiple timepoints.
Publication reporting that seminal plasma contains abundant cell-free DNA from the prostate, supporting seminal plasma as a potential liquid biopsy source.
Closed a Series B financing round to scale mail-in semen analysis services and expand clinical partnerships and market offerings.
Announced expansion of mail-in semen analysis and clinic partnerships across New York following conditional approval.
Presented multiple studies at the American Urological Association 2026 Annual Meeting drawing on data from the company's clinical network and biobank.
Published validation study demonstrating correlation between 1-hour in-clinic analysis and mail-in delayed semen analysis testing.
Prospective study reporting compliance metrics from >16,000 men who received mailed post-vasectomy testing kits, with reported compliance rates at multiple timepoints.
Publication reporting that seminal plasma contains abundant cell-free DNA from the prostate, supporting seminal plasma as a potential liquid biopsy source.