Personal Strengths Publishing

What Personal Strengths Publishing does

Personal Strengths Publishing is the registered-trademark owner and publisher of the Strength Deployment Inventory (SDI), a personality and relationship assessment rooted in Relationship Awareness Theory. The company is structured as a small UK-based private entity headquartered in Stamford with five employees, and the SDI platform is offered globally through direct enterprise sales and a partner channel. The core product is delivered as an annual subscription license and combines four analytical sub-components — the Motivational Value System, the Conflict Sequence, the Strengths Portrait, and the Overdone Strengths Portrait — surfaced through personalized reports, team and coworker profiles, and facilitator-led debriefs.

The go-to-market blends an enterprise field-sales motion ("Request Demo" CTA targeting large organizations) with a horizontal segmentation strategy covering enterprise buyers, internal HR/L&D practitioners, external consultants and coaches, and educational institutions. Distribution is reinforced by the SDI Partners program, which onboards independent consultants as resellers, and by the SDI Certification program, which trains facilitators to administer the assessment. Workflow integrations with Zoom, Microsoft Outlook, Microsoft Teams, and Slack are positioned as paid add-ons on top of the standard learner license, embedding SDI insights into daily communication tools.

Revenue mechanics are anchored in quote-based, subscription recurring licenses sold to large organizations; pricing is not publicly disclosed. The customer base referenced in source material spans marquee U.S. enterprises across healthcare (Mayo Clinic, Johns Hopkins, Sinai, University of Washington Medical Center), technology (Google, Adobe, Cisco, Airbnb, Meta, Cerner, CACI), defense (Raytheon, U.S. Army Corps of Engineers), retail (JCPenney, Macy's), food and beverage (Frito-Lay, Papa John's), and resources (Rio Tinto). A multi-channel content engine — blog, webinars, eBooks, social media, email — supports top- and mid-funnel demand, with the demo CTA functioning as the primary bottom-of-funnel conversion mechanism. The company claims 91% of surveyed SDI clients report behavior change and better organizational results.

Name

Personal Strengths Publishing

Website

https://personalstrengths.uk

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Personal Strengths Publishing is a UK-based, five-employee private publisher of the Strength Deployment Inventory (SDI), a registered-trademark personality and relationship assessment sold on annual subscription licenses to enterprise buyers, internal L&D teams, consultants, and educators worldwide.

Ownership category

akta.pro rank

Product category

Behavioral Assessment Software

NAICS

Software Publishers (51321)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Standards Development & Publishing (SDOs, Technical Standards) (MPAJACAB)

Keywords

• Personality assessment tools
• Behavioral assessment platform
• Leadership development assessments
• Workplace conflict resolution
• Team effectiveness training

GTM type

B2B

Offering type

Software

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. SDI Assessment Licenses: Assessment-based revenue from administering the Strength Deployment Inventory to individual participants, with personalized reports and platform access. Pricing appears to be per-seat or organizational licensing based on the enterprise sales motion.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Personal Strengths Publishing delivers the Strength Deployment Inventory (SDI), a behavior and motivation assessment based on Relationship Awareness Theory, sold on a per-seat subscription to enterprises and certified practitioners. The platform is supported by SDI Certification for facilitators and an SDI Partners program for independent consultants, with add-on integrations for Zoom, Outlook, Teams, and Slack.

Product overview

Personal Strengths Publishing offers the Strength Deployment Inventory (SDI) as its core assessment product, a personality assessment platform focused on relationship intelligence and workplace collaboration. The SDI platform includes multiple integrated sub-components: Motivational Value System (understanding core motives), Conflict Sequence (recognizing conflict escalation patterns), Strengths Portrait (identifying key strengths), and Overdone Strengths Portrait (understanding when strengths become counterproductive). The company also offers SDI Certification for facilitators and an SDI Partners program for independent consultants. The product provides personalized assessment reports, team and coworker profiles, and integrates with communication platforms (Zoom, Outlook, Teams, Slack) to deliver insights in the flow of work.

Differentiator

Problem solved

Functional benefit

Products and services

• Strength Deployment Inventory (SDI) Personality and motivation assessment that helps people understand the motives behind behavior to navigate differences productively and work better together under pressure. Delivers personalized reports, team and coworker profiles, and conflict/motive insights; available through enterprise licenses and the web platform.
• SDI Certification Facilitator certification program that prepares internal practitioners, consultants, coaches, and educators to administer the SDI assessment, interpret results, lead debriefs, and apply insights in workplace situations.
• SDI Partners Program Channel partner program that gives independent consultants access to SDI assessment tools, certification pathways, implementation resources, and ongoing support to help clients improve how people interpret behavior, navigate conflict, and work through differences.

Quantifiable outcome

• 91% of surveyed SDI clients report that the skills in Crucial Learning's courses and assessments change behavior and drive better organizational results

Named customers19 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core.

• ZoomcoreTechnology or IntegrationSDI app integration with Zoom provides tips and insights for meaningful communication with colleagues. Users receive guidance to hold more effective meetings, prevent and resolve conflict, and adapt communication style to individual personalities.
• Microsoft (Outlook, Teams)coreTechnology or IntegrationSDI app for Outlook delivers personalized tips for every email and meeting directly in the inbox. Microsoft Teams integration allows users to draw on personalized insights to make the most of each interaction.
• SlackcoreTechnology or IntegrationSDI integration for Slack enables users to see teammates' motives and conflict triggers and get tips for adapting communications to coworkers' personalities for more efficient collaboration.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• Predictive Index: Provides behavioral and cognitive assessment tools for talent optimization, team design, and leadership. Targets the same enterprise HR and L&D buyers as the SDI with a SaaS-delivered platform.
• Crucial Learning: The originator and owner of the SDI assessment. Personal Strengths Publishing operates as a downstream publisher/distributor of Crucial Learning's SDI, making Crucial Learning the most directly comparable entity in the same product category.
• Hogan Assessments: Provides personality-based assessments for leadership selection, development, and coaching. Overlaps with the SDI's enterprise use cases around leadership development and interpersonal effectiveness.
• Wiley (Everything DiSC): Publishes the Everything DiSC suite of workplace behavioral assessments, directly competing with the SDI in the personality/behavioral assessment category for leadership, team, and conflict use cases.

Others

• Center for Creative Leadership (CCL): Non-profit provider of leadership development research, assessments, and programs. Acts as an adjacent participant in the same enterprise leadership development ecosystem rather than a direct SDI substitute.

Broad incumbents

• The Myers-Briggs Company: A long-established publisher of the MBTI assessment and a broader portfolio of development tools. Competes with SDI in personality assessment for leadership development and team-building.
• Korn Ferry: Global organizational consulting firm with a portfolio of assessments, leadership development programs, and talent solutions. Competes with the SDI for enterprise leadership development budgets as part of a much broader service offering.
• Development Dimensions International (DDI): Provides leadership development and assessment solutions to global enterprises. Overlaps with the SDI's leadership development and team effectiveness use cases as part of a broader L&D portfolio.
• Gallup (CliftonStrengths): Major incumbent in strengths-based assessments with CliftonStrengths. Targets the same enterprise leadership development and team effectiveness budgets as the SDI but with a much larger presence and broader product line.

Emerging players

• Interact (Stormz): Provider of collaborative workshop and facilitation tools. Compares as an emerging adjacent player in the team-collaboration and facilitation tooling space that often pairs with personality assessments like SDI in workshop contexts.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/cruciallearning
• YouTubeyoutube.com/cruciallearning
• Facebookfacebook.com/cruciallearning
• Instagraminstagram.com/crucial.learning
• LinkedInlinkedin.com/company/personal-strengths-publishing

Revenue estimate

Valuation estimate

Number of profiles

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 Personal Strengths Publishing