What YO does

YO Home Sperm Test is the consumer fertility product line of Medical Electronic Systems (MES), a privately held Israeli corporation with US operations based in Encino, California. YO sells an FDA-cleared, smartphone-connected at-home sperm analysis device designed to let men measure five semen parameters — concentration, motility, progressive motility, motile sperm concentration (MSC), and progressive motile sperm concentration (PMSC) — without a clinic visit or mail-in sample. The system pairs a reusable hardware device with the YO mobile app (iOS and Android), which records a live video of the sperm sample and uses proprietary MES computer vision and motion-tracking algorithms to generate WHO 6th Edition compliant clinical-grade results in approximately 20 minutes, with >97% accuracy validated against laboratory testing across 500+ men.

The product portfolio centers on the 3-test kit priced at $99.95 and a refill kit at $59.95, supplemented by branded fertility-themed merchandise. YO operates a direct-to-consumer e-commerce model through yospermtest.com with discreet global shipping, and is expanding into B2B channels including wholesale, drop shipping, and an active affiliate program. Customer segments include couples trying to conceive, men proactively monitoring fertility, and healthcare providers using YO as a pre-clinic screening tool. The company holds ISO 27001 and CE certifications in addition to its FDA clearance, and has established strategic alliances with Bird&Be, Future Fertility, and a broader clinical endorsement network anchored by Yale, Mount Sinai, and Washington University faculty.

Under the MES parent, YO sits within a broader male fertility ecosystem that includes the MaleMan mail-in test kit, the SQA-iO CLIA-waived point-of-care analyzer, and the SQA-Vision advanced analyzer with DNA fragmentation analysis. MES's clinical installed base of 4,000+ lab systems in 50+ countries provides distribution and credibility leverage for the YO consumer brand, while strategic partnerships with US Fertility, Kaiser Permanente, LabCorp, and the US Military underscore clinical trust at the enterprise level.

Name

YO

Legal name

Medical Electronic Systems Limited

Website

https://yospermtest.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

101–250 employees

Short description

YO Home Sperm Test, a product line of Medical Electronic Systems, sells FDA-cleared at-home sperm analysis kits that use smartphone-based computer vision to measure five semen parameters with over 97% accuracy for couples trying to conceive and men monitoring fertility.

Ownership category

akta.pro rank

Product category

At-Home Fertility Diagnostics

NAICS

Electromedical and Electrotherapeutic Apparatus Manufacturing (334510)

SIC

In Vitro & In Vivo Diagnostic Substances (2835)

akta.pro primary industry

Remote Diagnostics & Home Testing Devices (Connected POC/At-Home Diagnostic Readers) (HLAHACAL)

Keywords

• Home sperm test
• Male fertility testing
• At-home semen analysis
• Fertility health monitoring
• Reproductive health diagnostics

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Marketing or Sales, Personnel

Revenue model

1. Hardware Sales - YO Home Sperm Test Kits: Primary revenue stream from selling the YO Home Sperm Test kit, which includes the YO device (reusable for up to 12 tests) and 3 testing consumables. The kit provides at-home semen analysis with clinical-grade results.
2. Consumables - Refill Kits: Recurring revenue from replacement consumables including pipettes, liquefaction powder, collection cups, and testing slides. Refill kits contain 3 tests for ongoing fertility monitoring.
3. Mobile Application: Free YO app downloaded from App Store and Google Play. App provides step-by-step guidance, test execution, results display, and secure data storage. Generates revenue through hardware sales it enables.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

YO Home Sperm Test is an FDA-cleared at-home male fertility testing device paired with a smartphone app that delivers clinical-grade semen analysis (sperm concentration, motility, progressive motility, motile sperm concentration, and progressive motile sperm concentration) with over 97% accuracy in approximately 20 minutes. The reusable hardware device connects to a phone via direct WiFi and uses computer vision and motion-tracking to record live video of the sperm sample. The product line includes a 3-test starter kit, refill consumables, and branded merchandise, sold primarily direct-to-consumer with wholesale and affiliate B2B channels.

Product overview

YO is a consumer fertility testing brand developed by Medical Electronic Systems (MES), offering an at-home sperm testing solution. The core product is the YO Home Sperm Test device paired with a mobile app, enabling men to perform FDA-cleared semen analysis privately at home. The system measures five clinical parameters (concentration, motility, progressive motility, MSC, PMSC) with over 97% accuracy using computer vision and motion-tracking technology, providing WHO 6th Edition compliant results in approximately 20 minutes along with live video recording of sperm samples. The product portfolio includes the main 3-test kit, refill packs for ongoing monitoring, and branded merchandise (Welcome and Joy fertility plush toys). All products are distributed through the company's website with discreet shipping.

Differentiator

Problem solved

Functional benefit

Brands

• MaleMan: Mail-in semen testing kits featuring a proprietary 30-hour stability preservative for discreet at-home sample collection and overnight shipping to MES CLIA & CAP certified labs.
• SQA-iO
• SQA-Vision

Products and services

• YO Home Sperm Test - 3 Test Kit FDA-cleared at-home sperm testing device with three test consumables; provides smartphone-driven clinical-grade semen analysis with over 97% accuracy and live video recording of the sperm sample. Targets men and couples seeking private fertility assessment without a clinic visit.
• YO Home Sperm Refill Kit

Quantifiable outcome

• >97% accuracy compared to laboratory testing
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature4 records

Partnerships

Seven partnerships are on record, tiered core, major, strategic and flagship.

• US FertilitycoreStrategic or Co-development PartnerUS Fertility is a trusted organization that relies on MES technology for accurate and reliable sperm analysis results, demonstrating clinical confidence in the company's solutions.
• Kaiser PermanentecoreStrategic or Co-development PartnerKaiser Permanente, a leading healthcare organization, trusts MES technology for fertility testing solutions, indicating broad healthcare system adoption.
• LabCorpcoreStrategic or Co-development PartnerLabCorp utilizes MES's proven technology for semen analysis, validating the company's laboratory-grade accuracy standards.
• US MilitarymajorStrategic or Co-development PartnerThe US Military relies on MES's accurate and reliable products for male fertility testing, demonstrating government-level trust in the technology.
• Bird&BestrategicStrategic or Co-development PartnerBird&Be is actively collaborating with MES Solutions on research aimed at advancing the science of fertility. Dr. Dan Nayot serves as Chief Medical Advisor for Bird&Be while also endorsing YO products.
• Medical Electronic Systems (MES)flagshipOEM/ Whitelabel/ Licensing PartnerMES is the parent company and technology provider for YO Home Sperm Test. MES is the world's leading provider of Automated Sperm Quality Analyzers with 4,000+ systems across 50+ countries.
• Future FertilitystrategicStrategic or Co-development PartnerDr. Dan Nayot, a recognized fertility specialist, is Co-Founder and Chief Medical Officer of Future Fertility while serving as Medical Director of The Fertility Partners.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Legacy: Legacy offers mail-in sperm analysis and cryopreservation (now part of Ro). Directly competes with YO in the male fertility testing category, with a different format (mail-in vs. instant at-home) but the same end customer and clinician-referral dynamic.
• Trak (Sandstone Diagnostics): Trak is a direct at-home male fertility testing competitor offering a centrifuge-based sperm concentration test kit. Same target customer (men/couples monitoring fertility), same DTC e-commerce motion, and overlapping consumer education focus.
• ExSeed Health: ExSeed Health offers an at-home sperm test with smartphone-connected analysis. Operates in the same product category and serves the same consumer segment, with presence in the UK and Europe giving it regional overlap with YO.
• Fellow: Fellow is an emerging at-home male fertility testing brand with subscription-based test kits. Competes directly for the same couple-trying-to-conceive segment with a modern DTC brand and recurring revenue model.

Broad incumbents

• Everlywell: Everlywell is a major at-home diagnostic testing platform (now part of Everly Health). Operates in the broader at-home consumer health testing category and could expand into male fertility, competing for the same DTC consumer testing wallet.
• Ro: Ro is a large DTC men's health and telehealth platform that acquired Legacy, giving it a direct foothold in male fertility testing. A broader incumbent with much larger marketing budget and distribution capability that competes for the same end customer.
• Carrot Fertility: Carrot is a leading fertility benefits platform serving employers and individuals. While not a direct test provider, it controls a significant portion of fertility care navigation in the US and can route consumers toward or away from YO via its provider network.
• Hims & Hers Health: Hims & Hers is a publicly traded DTC men's health and wellness platform. While not focused exclusively on fertility, it competes for the same consumer health wallet and could expand into male fertility testing given its scale and brand recognition.

Emerging players

• Bird&Be: Bird&Be is a fertility-focused supplement and education brand co-developing research with MES. Targets the same TTC consumer segment with adjacent product categories, and is a current partner of YO — making it both a collaborator and potential competitive channel.
• Future Fertility: Future Fertility applies AI to fertility assessment and is co-founded by Dr. Dan Nayot, who also serves as YO's medical advisor. Operates in an adjacent niche within fertility AI/decision support, partially overlapping with YO on male fertility evaluation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/yospermstest
• YouTubeyoutube.com/channel/UCL3l6tljO7cuhQW_hnGyOqw
• Facebookfacebook.com/YOspermtest
• Instagraminstagram.com/yospermtest/?hl=en
• LinkedInlinkedin.com/company/yo-home-sperm-test

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 records

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 YO