Insights

Expansion opportunities Mountainside has recent and ongoing geographic expansion including a new location in Huntington, NY and virtual services for Massachusetts, indicating potential cross-market sales opportunities with hospitals, clinics, and employers across the Northeast seeking reliable addiction treatment partnerships.

Integrated care partners Active partnerships with medical institutions such as Southampton Hospital and Stony Brook University, plus opportunities in addiction medicine training, suggest openings to offer collaborative programs, referral agreements, and joint-funded education initiatives.

Diversified programs Introduction of a Partial Hospitalization Program in Huntington signals a move toward higher-acuity treatment tiers, creating sales avenues with insurers, employers, and referral sources seeking flexible care levels and transition services.

Recovery-friendly branding Recognition as a Recovery-Friendly Workplace and notable community involvement (Dopey Film Festival, scholarships) present sales angles for corporate wellness programs, employee-assistance offerings, and workforce development partnerships.

Technology enablement A tech stack including QuickBooks, Power BI, and Azure AD indicates readiness for integrated data reporting, billing efficiency, and secure patient management collaborations—valuable for health systems and managed care partners seeking streamlined operations.

Similar companies to Mountainside

Mountainside Tech Stack

Mountainside uses 8 technology products and services including QuickBooks, Canva, Power BI, and more. Explore Mountainside's tech stack below.

Media & News

Mountainside's Email Address Formats

Mountainside uses at least 4 email formats:
Mountainside Email FormatsExamplePercentage
First.Last@mountainside.comJohn.Doe@mountainside.com
82%
FLast@mountainside.comJDoe@mountainside.com
11%
Last@mountainside.comDoe@mountainside.com
5%
First.Middle@mountainside.comJohn.Michael@mountainside.com
2%

Frequently Asked Questions

What is Mountainside's phone number?

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You can contact Mountainside's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Mountainside's official website and social media links?

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Mountainside's official website is mountainside.com and has social profiles on LinkedIn.

How much revenue does Mountainside generate?

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As of August 2026, Mountainside's annual revenue is estimated to be $25M - $50M.

What is Mountainside's SIC code and NAICS code?

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Mountainside's SIC code is 8049 - Offices and Clinics of Health Practitioners, Not Elsewhere Classified and NAICS code is 62133 - Offices of Mental Health Practitioners (except Physicians).

How many employees does Mountainside have currently?

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As of August 2026, Mountainside has approximately 300 employees across 2 continents, including North America and Africa. Key team members include Chief Executive Officer: B. B., Chief Financial Officer And General Manager: L. B. and Chief Clinical Outreach Officer: J. H. Explore Mountainside's employee directory with LeadIQ.

What industry does Mountainside belong to?

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Mountainside operates in the Mental Health Care industry.

What technology does Mountainside use?

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Mountainside's tech stack includes QuickBooks, Canva, Power BI, Microsoft Intune, Azure Active Directory, Atlassian Jira, ServiceNow and WP Engine.

What is Mountainside's email format?

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Mountainside's email format typically follows the pattern of First.Last@mountainside.com. Find more Mountainside email formats with LeadIQ.

When was Mountainside founded?

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Mountainside was founded in 1998.
Mountainside logo

Mountainside

Mental Health CareConnecticut, United States201-500 Employees

Mountainside Treatment Center provides treatment for chemical dependency and alcohol use disorders within the mental health care sector. Founded in 1998 and based in Canaan, Connecticut, the organization operates across Connecticut, New York, and New Jersey, with virtual services extending to Massachusetts.

The organization serves individuals seeking help for substance use disorders and emphasizes a supportive treatment environment across its network. It operates as a regionally focused provider of chemical dependency treatment services. In 2022, Mountainside was designated a Recovery-Friendly Workplace by the Connecticut governor, and it announced a two-week Addiction Medicine training rotation with Stony Brook University and Southampton Hospital.

Section iconCompany Overview

Phone number
SIC Code
8049 - Offices and Clinics of Health Practitioners, Not Elsewhere Classified
NAICS Code
62133 - Offices of Mental Health Practitioners (except Physicians)
Founded
1998
Employees
201-500

Section iconFunding & Financials

  • $25M - $50M

    Mountainside's revenue is estimated to be in the range of $25M - $50M

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