About

Senior-led.
Mission-driven.
Compliance-first.

A collective of strategists, clinicians, operators, and entrepreneurs — assembled to serve healthcare providers who refuse to compromise.

1nessAgency team in New York City
12+
Years
0
Junior Staff
NYC
Based

Our Mission

Help ethical providers reach the patients they're uniquely equipped to serve.

We're an all-senior, Ivy League-trained team. Every engagement is led by strategists with deep healthcare expertise — not handed off to junior staff or outsourced contractors.

Our mission is straightforward: build marketing systems that reflect the quality of care our clients provide. Every strategy, every campaign, every line of code is built with patient trust as the foundation.

Founder & CEO

James
Tannahill

"I built 1nessAgency because I saw the same problem everywhere: healthcare providers with extraordinary clinical talent, invisible online."

Before founding 1nessAgency, James built his career at the intersection of finance, private equity, and digital strategy. His background in institutional capital markets and PE deal execution gives him a fundamentally different lens on healthcare marketing — one where every campaign is measured by its contribution to enterprise value, not vanity metrics.

That finance-first perspective shapes everything: HIPAA-compliant marketing infrastructure built to withstand due diligence, attribution models that prove EBITDA contribution, and brand capital strategies that quantify positioning strength for investors and acquirers.

Expertise spans generative engine optimization (GEO), search engine marketing, M&A value engineering, and the compliance architecture that PE-backed healthcare platforms require. Every client engagement is led personally — no handoffs, no junior layers.

Private Equity StrategyM&A Value EngineeringHealthcare Digital MarketingHIPAA ComplianceGEO/AIOBrand CapitalMental Health Practice Growth

What Drives Us

01

Heart-Centered Branding

Every brand we build is rooted in empathy, authenticity, and the lived experience of the patients you serve.

02

Compliance & Consciousness

HIPAA compliance and ethical marketing are not constraints — they are the foundation of patient trust.

03

Lived Experience

We bring personal understanding of mental health and wellness to every strategy we craft.

04

Strategic Precision

Data-driven decisions and meticulous execution deliver measurable, repeatable outcomes for every client.

05

Ethical AI Use

We leverage generative AI responsibly to amplify reach while preserving the human voice of your brand.

06

Long-Term Trust

We prioritize enduring partnerships and sustainable growth over quick wins and vanity metrics.

1nessAgency office workspace

FAQ

Questions we get asked.

Straightforward answers about how we work, what we charge, and what to expect.

01 Who founded 1nessAgency?

Founded by James Tannahill as a mission-driven digital marketing agency serving healthcare, mental health, and regulated industries.

02 What makes 1nessAgency different?

All-senior, Ivy League-trained NYC-based team with no juniors or outsourced contractors. We are HIPAA compliant and specialize exclusively in regulated and high-trust industries.

03 What results can I expect?

Strong ROAS of 4x-8x or higher for optimized programs. Cost per acquisition decreases of 30-50% over time. Early wins within 90 days. Average client engagement: 12-24 months.

04 Are there long-term contracts required?

No. All pricing is discussed upfront during a discovery call. There are no setup fees and no long-term contracts required beyond agreed terms.

05 How do you handle HIPAA compliance?

We build compliance into every layer of our marketing systems — from encrypted intake forms and HIPAA-aligned tracking pixels to audit-ready documentation and SOC 2-aligned workflows.

06 What does onboarding look like?

Begins with a discovery call, followed by custom strategy development, compliant infrastructure deployment, and campaign launch with early wins typically visible within 90 days.

07 How will I communicate with my team?

Every client has direct access to senior strategists via phone, Slack, or email. We provide real-time dashboards through our HealthVerse platform, deliver compliance reports, and conduct quarterly strategy reviews led by leadership.

08 Can you help increase enterprise value?

Through our partnership with RDLB, we offer pre-transaction value engineering. Clients have seen enterprise value uplift of $10M-$50M or more.

09 How often will I receive reports?

Weekly and bi-weekly reporting as standard, with real-time access via the 1nessAgency Client Portal.

10 How long are typical engagements?

Rapid launch phase: 3-6 months. Standard growth partnership: 12-24 months (most common). Pre-transaction/exit-focused: 6-18 months. Month-to-month after initial commitment with 30-day termination notice.

11 Who manages my account?

Every account is managed by a senior-level team member with direct phone, Slack, or email access. Quarterly strategy reviews with leadership.

12 How do you handle customer concentration risk?

We systematically mitigate customer concentration by introducing strategic market segmentation and developing new, diversified demand generation channels.

New York City skyline at dusk

Our Home

West 43rd Street,
Midtown Manhattan.

At the center of healthcare, media, and finance.

Let's work together.

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