One Strategy Group

What One Strategy Group does

One Strategy Group (OSG) is a 22-person boutique corporate strategy and CEO advisory firm founded in 2022 by David Meadvin and Everett Rosenfeld. The firm provides senior-level advisory services to clients ranging from Series A startups to Fortune 500 enterprises, operating through an embedded model in which senior advisors work directly alongside C-Suite leadership rather than delivering through layered account teams. Practice areas span leadership strategy, corporate communications, change management, risk and crisis, IPO and M&A advisory, growth and go-to-market, digital strategy, and purpose/impact consulting. Revenue is generated through quote-based professional services engagements with multi-year contracts, and clients are accessed via direct enterprise field sales rather than channel or volume-based distribution.

The firm's value proposition rests on a horizontal, cross-vertical approach that explicitly contrasts with traditional PR agencies and management consultancies: partners embed with clients to translate strategic perspective into "decisive action" across high-stakes moments including M&A transactions, IPOs, crisis events, and leadership transitions. Notable named engagements include M&A communications counsel (12 transactions over two years for Managing Director Liz Stein), corporate communications for Hilton's Thrive@Hilton global campaign, partnership launch communications for Discovery Education, and corporate communications for National Geographic Channels. The senior team is drawn from Fortune 500 in-house communications roles (Bloomberg, Facebook, Citadel, WPP-owned Group SJR), government communications (U.S. Senate Majority Leader's office, NYC Mayor's office, Obama Administration), and consumer brand communications (National Geographic, Discovery, Mandarin Oriental). Marketing relies on thought leadership (op-eds in Fast Company, Fortune, Inc., Forbes, PR Daily), a weekly newsletter, and earned media, with no productized SaaS or platform layer.

In February 2026, OSG joined the Paritee Global Network as an independent member firm, with CEO David Meadvin concurrently serving as U.S. President and partner for Paritee. The network affiliation extends OSG's service portfolio to include research and analytics, AI implementation advisory, and creative services, and establishes a strategic alliance with Brands2Life U.S. for Tech PR. The firm previously acquired Liz Stein Consulting in 2024 as a wholly-owned subsidiary and received PRWeek's 2024 Up and Comer recognition. Operating status remains independent within the network, with no venture capital or institutional investment disclosed.

Name

One Strategy Group

Legal name

One Strategy Group

Website

https://onestrat.com

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

11–50 employees

Short description

One Strategy Group is a 22-person boutique corporate strategy and CEO advisory firm founded in 2022, serving clients from Series A startups to Fortune 500 companies through embedded advisory engagements spanning communications, M&A, IPO, crisis, and change management. The firm joined Paritee's global network in February 2026.

Ownership category

akta.pro rank

Product category

Management Consulting

NAICS

Management Consulting Services (54161), Administrative Management and General Management Consulting Services (541611)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Corporate Strategy Advisory (BPAHADAA)

akta.pro secondary industry

Strategy & Corporate Development Consulting (BPAHACAA)

Keywords

• Corporate strategy advisory
• CEO advisory services
• Strategic communications consulting
• M&A advisory
• Crisis management consulting

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Corporate Strategy Advisory: Professional services fees for strategic counsel to CEOs and C-Suite leaders. Services include leadership strategy, corporate communications, change management, risk and crisis, IPO and M&A advisory, growth and go-to-market, digital strategy, and purpose/impact consulting.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

One Strategy Group is a corporate and CEO advisory firm that provides strategic counsel across practice areas including leadership strategy, corporate communications, change management, risk and crisis, IPO and M&A advisory, growth and go-to-market, digital strategy, and corporate purpose. The firm embeds directly with client leadership teams to translate strategic perspective into decisive action, serving organizations from Series A startups through Fortune 500 enterprises.

Product overview

One Strategy Group is a corporate and CEO advisory firm providing strategic consulting services to companies from Series A to Fortune 500. Rather than a software platform, the firm offers a unified portfolio of advisory service offerings that address strategic challenges across the enterprise lifecycle. Practice areas span leadership strategy, corporate communications, change management, risk and crisis, IPO and M&A support, growth and go-to-market execution, digital strategy, and corporate purpose. Following the firm's acquisition by Paritee Global Network in February 2026, the service portfolio was expanded to include research and analytics, AI implementation advisory, and creative services, with capabilities extended through collaboration with Brands2Life U.S. for Tech PR and creative marketing.

Differentiator

Problem solved

Functional benefit

Products and services

• Corporate Strategy Advisory End-to-end corporate strategy advisory covering leadership strategy, corporate communications, change management, risk and crisis, IPO and M&A, growth and go-to-market, digital strategy, and purpose alignment. Delivered via an embedded engagement model for CEOs and C-Suite leaders at companies from Series A through Fortune 500.
• Leadership Strategy Trusted advisory to CEOs and C-Suite executives on tough decisions, charting strategic vision, managing public profile, and coaching on growth and management.
• Corporate Communications Strategy development and leadership of firmwide external positioning, media relations, and media training tied to specific business goals.
• Change Management Strategy for internal leadership, culture, and communications addressing generational and cultural shifts, including policy changes and key hires.
• Risk and Crisis Crisis response support and long-term reputation strategy development aimed at promoting growth and preventing crises from occurring.
• IPO and M&A Strategic and communications support throughout major corporate milestones including IPOs and M&A transactions, covering coordination, communication, and implementation before and after close.
• Growth and Go-to-Market Strategy and launch support for entering new markets and launching new products or services, with emphasis on visibility, branding, and commercial success.
• Digital Strategy Digital communications strategy and channel amplification across the new media landscape to reach broader stakeholder audiences.
• Purpose Advisory Advisory to align corporate impact with business goals, including diversity of thought, experience, and background as a driver of success.
• Research and Analytics Research and analytics capability introduced through the Paritee Global Network affiliation to support client engagements.
• AI Implementation Advisory Advisory on artificial intelligence implementation for clients, introduced through the Paritee Global Network affiliation.
• Creative Services Creative services delivered in partnership with Brands2Life U.S., including tech PR and creative marketing capabilities.

Quantifiable outcome

• 12 M&As successfully counseled in two years

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core and minor.

• Paritee Global NetworkcoreStrategic or Co-development Partner · 1 February 2026One Strategy Group joined the Paritee global agency network in February 2026. David Meadvin continues as CEO while also taking on the role of U.S. President and partner for Paritee. Paritee curates a portfolio of top-tier advisory firms in key regions worldwide. Firms work independently to serve clients but collectively to deliver global results.
• Brands2Life U.S.minorStrategic or Co-development Partner · 1 February 2026Partnership with Brands2Life U.S. to extend capabilities across Tech PR and creative marketing. Part of the expanded services now available through the Paritee network connection.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Prosek Partners: Prosek Partners is a strategic communications and investor relations firm advising public and private companies on M&A, IPO, crisis, and brand-building. It overlaps meaningfully with OSG's corporate communications and growth/GTM practice areas.
• Kekst CNC: Kekst CNC is a strategic communications consultancy advising corporates and investors on M&A, IPOs, shareholder activism, crisis, and corporate positioning. It directly overlaps with OSG's IPO/M&A, risk and crisis, and corporate communications practice areas.
• Brunswick Group: Brunswick Group is a global advisory firm specializing in critical issues and corporate communications for CEOs and boards, with strong M&A, IPO, and crisis practices. It is a direct competitor for the same C-Suite strategic communications mandates OSG targets.
• Abernathy MacGregor Group: Abernathy MacGregor Group is a strategic communications advisory firm focused on investor relations, M&A communications, and corporate governance issues. It competes for the same CEO/CFO-level strategic communications mandates as OSG.
• FGS Global: FGS Global (formed by the merger of Sard Verbinnen & Co, H+K Strategies' corporate practice, and others) is a major strategic communications and CEO advisory firm serving clients on M&A, IPO, crisis, and shareholder activism. It competes head-to-head with OSG for Fortune 500 C-Suite mandates.
• Joele Frank: Joele Frank is a strategic communications firm specializing in M&A, shareholder activism, and corporate communications advisory for Fortune 500 companies. It is a direct competitor for OSG's M&A and corporate communications engagements.
• Teneo: Teneo is the leading global CEO advisory and strategic communications firm, offering management consulting, financial advisory, risk advisory, and public affairs services to C-Suite leaders. It is the closest direct competitor to One Strategy Group in the senior advisory space, particularly for IPO, M&A, and crisis mandates.

Broad incumbents

• McKinsey & Company: McKinsey & Company is the world's largest management consulting firm, advising Fortune 500 CEOs on corporate strategy, transformation, and organizational change. It is a broad incumbent competitor, especially for large-scale corporate strategy and transformation mandates that overlap with OSG's leadership strategy and change management practices.
• Boston Consulting Group: BCG is a global management consulting leader serving Fortune 500 CEOs on strategy, M&A, digital transformation, and organizational design. It competes with OSG for enterprise-level strategic advisory work, though its portfolio is broader than OSG's CEO-embedded model.
• Bain & Company: Bain & Company is a top-tier global management consulting firm advising corporate leaders on strategy, M&A, operations, and transformation. It competes with OSG at the high-end of corporate strategy advisory for Fortune 500 clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/onestrategygroup

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries1 record

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 One Strategy Group