Quartet Health
Whole, human, behavioral health care.
143 employees · est. 2014 · New York, United States
Quartet Health is the older company (2023 vs 2014); Quartet Health is the larger of the two.
Side-by-Side Comparison
| Metric | Letterlife | Quartet Health |
|---|---|---|
| Founded | ||
| Founded | 2023 | 2014 older |
| Headquarters | ||
| Headquarters | Stockholm, Sweden | New York, United States |
| Employees | ||
| Employees | 6 | 143 larger |
| Industry | ||
| Industry | Health Care, Health and Wellness | Analytics, Health Care, Health and Wellness |
| Funding Stage | ||
| Funding Stage | Pre Seed | Acquired |
| Total Funding | ||
| Total Funding | $700.00K | $219.50M |
| Funding Rounds | ||
| Funding Rounds | 1 | 7 |
| Services | ||
| Services | Not tracked yet | Behavioral healthcare solutions, Value-based care delivery, Patient-provider matching, Care coordination, Telehealth services |
| Target Customers | ||
| Target Customers | Not tracked yet | Patients with behavioral health needs, Mental health providers, Health plans, Health systems, Community mental health centers |
| Taxonomy | ||
| Taxonomy | ADHD Support, Women's Health, Gender Bias In Healthcare, Mental Health, Patient-centered Care, Epidemiology, Gynecology, Clinical Research, Healthcare Disparities, Patient Advocacy | Value-Based Healthcare, Behavioral Health, Serious Mental Illness, Tech-Enabled Healthcare, Care Enablement, Patient Engagement, Integrated Care Model, Licensed Practitioners, Collaborative Care, Healthcare Partnerships, Mental Health Services, Provider Incentive Alignment, Whole-Person Care, Healthcare Technology Platform |
| Website | ||
| Website | letterlife.se | quartethealth.com |
About Letterlife
Letterlife is a startup that aims to address the gender-specific challenges in diagnosing and treating ADHD in girls and women. Founded in 2023 and based in Sweden, the company has received a €700.00K Pre Seed Round investment on 12 September 2023 from Icebreaker.vc and Tham Invest. The company's s...
About Quartet Health
Quartet Health positions itself at the forefront of behavioral healthcare with its commitment to delivering high-quality, value-based services tailored for individuals with mental health needs. Founded in 2014, the company operates from its headquarters in the United States. It utilizes a unique com...
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Funding, hiring, leadership and stack changes at Letterlife and Quartet Health — by email.
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Compiled from the BounceWatch company index. We last looked at Letterlife on 12 Sep 2024, and Quartet Health on 13 Mar 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.