Mariners Inn

What Mariners Inn does

Mariners Inn is a 501(c)(3) nonprofit behavioral health and housing organization founded in 1925 by the Episcopal Diocese of Michigan, originally as the Detroit Protestant Episcopal City Mission Society. Headquartered at 445 Ledyard Street in Detroit since 1955, it delivers a vertically integrated portfolio of services including residential substance abuse treatment (serving 700+ men annually), intensive outpatient programs (serving 190+ adults annually), recovery housing (36 beds), peer mentoring and alumni programs, alternative therapies (art, yoga, sound), non-emergency transportation, and prevention programs covering youth and families. The organization holds CARF's three-year accreditation and State of Michigan licensing as a residential and outpatient treatment center, and reports that $0.80 of every donated dollar is directed to client services.

Its underlying technology stack is minimal — there is no proprietary platform, API, or AI component; service delivery relies on clinical and peer-based human interventions supported by standard nonprofit digital infrastructure (website, social channels, Classy donation portal). The business model is multi-stream: government-funded services via the Detroit Wayne Integrated Health Network (DWIHN) referral pipeline, individual and corporate donations, planned giving through a Community Foundation for Southeast Michigan endowment, and branded merchandise sales ($15-$110 items) supporting donor engagement.

In March 2025, Mariners Inn completed The Anchor, a $25 million, 65,500 square foot facility developed in partnership with Cinnaire Corporation, adding 44 units of permanent supportive housing and 40 recovery housing units, plus ground-floor retail. This expansion effectively triples housing capacity, extends the service population to women for the first time, and represents the most significant operational inflection in the organization's 100-year history. Customer segments are persona-based and span homeless men with substance use disorders, outpatient adults with co-occurring conditions, young women ages 14-21 (SHE Program), young men ages 18-29 (RYPP), and families of clients.

Name

Mariners Inn

Legal name

Mariners Inn

Website

https://marinersinn.org

Company type

Private

Founded year

1925

Operating status

Operating

Headcount range

11–50 employees

Short description

Mariners Inn is a Detroit-based 501(c)(3) nonprofit, founded in 1925, providing residential and outpatient substance abuse treatment, recovery housing, peer mentoring, and prevention programs for homeless adults, youth, and families in Wayne County. It operates the recently opened Anchor facility with 84 housing units.

Ownership category

akta.pro rank

Product category

Behavioral Health and Substance Abuse Treatment Services

NAICS

Community Housing Services (62422), Temporary Shelters (624221), Outpatient Mental Health and Substance Abuse Centers (621420)

SIC

Services-Nursing & Personal Care Facilities (8050)

akta.pro primary industry

Homelessness Prevention, Shelter & Supportive Housing Services (BPAIANAC)

akta.pro secondary industry

Emergency Shelter, Camp Management & Non-Food Items (NFI) (BPAGAAAC)

Keywords

• Residential substance abuse treatment
• Outpatient addiction treatment
• Recovery housing programs
• Homeless shelter services
• Behavioral health services

Headquarters

HQ city

Detroit

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Donations and Charitable Contributions: Individual and corporate donations through the organization's website portal and annual campaigns. The organization reports that $.80 of every $1.00 contributed is spent on programs and services.
2. Merchandise Sales: Sale of branded merchandise including t-shirts, hoodies, water bottles, backpacks, and commemorative centennial items priced from $15 to $110.
3. Government Funded Services: Funded through Detroit Wayne Integrated Health Network (DWIHN) for mental health and substance use treatment services provided to Wayne County residents.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels10 records

Core offering

Mariners Inn is a nonprofit shelter and treatment center providing residential substance abuse treatment, intensive outpatient treatment, recovery housing, permanent supportive housing, peer mentoring, alumni support, alternative therapy, non-emergency transportation, and prevention programs for homeless adults, individuals with substance use and co-occurring mental health disorders, and at-risk youth in Detroit and Wayne County, Michigan. Services are delivered at no direct cost to clients and supported primarily through donations, government funding (DWIHN), and grants.

Product overview

Mariners Inn offers a comprehensive suite of substance abuse treatment and support services organized as distinct programs. The core offerings include Prevention Programs (Strengthening Families, SHE, and Residential Youth Prevention), Residential Treatment Programs, Intensive Outpatient Treatment, Peer Mentoring & Alumni Programs, Alternative Therapy (Art, Yoga, Sound Therapy), and Non-Emergency Transportation. The flagship facility, The Anchor at Mariners Inn, provides 44 units of permanent supportive housing and 40 recovery housing units. Specialized programs include Residential Gambling Disorder Treatment and the Second Chance Program for clients who relapse. Merchandise products (hoodies, t-shirts, backpacks) are sold as fundraising items.

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Treatment Programs Comprehensive substance abuse treatment services for men age 18+, including 12-step principles, cognitive behavioral therapy, individual and group therapy, case management, vocational assistance, GED and literacy services. Serves over 700 men annually in Detroit.
• Intensive Outpatient Treatment Program (IOP)

Quantifiable outcome

• 89% of consumers leave with the same or more financial resources than when they entered the Residential Program
• +5 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered minor and core.

• Pope Francis CenterminorStrategic or Co-development Partner · 1 October 2019Collaboration to curb chronic homelessness in Detroit through complementary services and coordinated outreach efforts.
• Detroit Wayne Integrated Health Network (DWIHN)coreStrategic or Co-development PartnerDWIHN provides empowerment to people serving over 75,000 citizens in Detroit and Wayne County. They operate the 24-hour access line (800-241-4949) for substance abuse and mental health services, and provide funding, oversight, and coordination for treatment providers including Mariners Inn.
• Wayne State UniversityminorOthersListed among community partners and donors. Wayne State University has provided support including delivery of grab-and-go bags during COVID-19 crisis.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Hazelden Betty Ford Foundation: Nationally recognized nonprofit provider of residential and outpatient substance use treatment with CARF accreditation; broader portfolio than Mariners Inn but directly comparable in core modality.
• Salvation Army Eastern Michigan / Great Lakes Division: National-scale faith-based nonprofit running Harbor Light substance abuse programs, shelter, and housing across Michigan, operating a broader portfolio of social services that includes direct competitors to Mariners Inn.
• Caron Treatment Centers: Established private nonprofit running residential and outpatient substance use disorder treatment with strong outcome reporting and accreditations similar to Mariners Inn's CARF posture.
• Volunteers of America Michigan: National nonprofit operating housing, recovery, and behavioral health programs throughout Michigan, with overlapping service lines including supportive housing and reentry services.
• Catholic Charities of Southeast Michigan: Regional Catholic Charities affiliate providing behavioral health, substance use treatment, housing, and refugee services across Southeast Michigan, overlapping with Mariners Inn's service categories.

Direct peers

• Detroit Rescue Mission Ministries: Detroit nonprofit operating emergency shelter, residential recovery, and faith-based substance abuse programs for homeless men, women, and children in the same service geography as Mariners Inn.
• Neighborhood Service Organization: Detroit-based nonprofit providing behavioral health, substance use treatment, supportive housing, and homelessness services across Wayne County, directly mirroring Mariners Inn's integrated model.
• Cass Community Social Services: Detroit nonprofit providing shelter, food, housing, and recovery services to homeless and low-income individuals, directly adjacent to Mariners Inn's Cass Park campus and overlapping donor base.
• Southwest Solutions: Detroit-based human services nonprofit offering behavioral health, supportive housing, and recovery programs in Wayne County with a comparable integrated care model.
• Pope Francis Center: Detroit nonprofit focused on chronic homelessness through direct outreach and shelter, co-located operationally with Mariners Inn (formal partnership to curb chronic homelessness in Detroit).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/MarinersInn
• YouTubeyoutube.com/user/MarinersInn1
• Facebookfacebook.com/MarinersInn
• LinkedInlinkedin.com/company/mariners-inn
• Instagraminstagram.com/marinersinnhs

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Mariners Inn