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Data-driven HR tools, people-centered insights

EFFECTIVENESS is a trusted partner in organizational development. We help businesses grow by identifying exactly which competencies, behaviors, and attitudes support – and which limit – success. Our strength lies in turning data into action: we diagnose, interpret, and design solutions that translate directly into measurable business value.

What We Do

  • Min project size
    $1,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    2 - 9
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2016
  • Languages

2 Languages that we service

  • Polish
  • English

2 Locations

  • Warszawa , Poland
  • Youngstown , OH

No have been added yet...

    Pricing Snapshot

    Min. project size $1,000+
    Avg. hourly rate $100 - $149 /hr
    Rating for cost 4.8 /5

    What Clients Have Said

    EFFECTIVENESS INC is praised for providing good value for cost across various projects, with clients noting effective solutions that fit their budgets. Specific project costs were not detailed, but the consistent feedback highlights cost-effectiveness and high-quality service as key strengths.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    < $10,000 based on 4 reviews
    < $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

    Select a service to see pricing information

    EFFECTIVENESS INC Review Insights

    Overall Review Rating

    5.0
    • Quality 5.0
    • Schedule 5.0
    • Cost 4.8
    • Willing to Refer 4.9

    Top Mentions

    Review Highlights

    • Strong Project Management

      Clients praised EFFECTIVENESS INC for delivering all project items on time and often ahead of schedule. The team maintained close contact, was highly responsive, and adapted quickly to changing needs.

    • Ongoing Support Post-Project

      EFFECTIVENESS INC continued to offer merit-based support even after project completion, which clients found valuable and indicative of the company's commitment to their success.

    • Cost-Effective Solutions

      Multiple clients highlighted the good value for cost offered by EFFECTIVENESS INC, noting that the solutions provided were both cost-effective and aligned with company values.

    • Improved Communication and Leadership

      EFFECTIVENESS INC enhanced communication within management teams and improved leadership skills through tailored programs, leading to better work comfort and successful recruitment outcomes.

    • High-Quality Training and Assessment

      The DISC D3 assessments and training provided by EFFECTIVENESS INC helped clients better understand team dynamics and improve HR processes, leading to higher employee engagement and reduced recruitment costs.

    EFFECTIVENESS INC Reviews

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    Services
    Project cost

    DISC D3 Customization for Recruitment Solutions Company

    • Corporate Training & Coaching HR Consulting Staffing
    • Less than $10,000
    • Oct. 2024 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    “They’re top class!”

    Sep 27, 2025
    CEO & Founder, CANDIDFUTURE
    Agnieszka Myśliwczyk
    Verified
    • Other industries
    • Gdansk, Poland
    • 1-10 Employees
    • Online Review
    • Verified

    EFFECTIVENESS INC has customized and implemented DISC D3 competency assessments for a recruitment solutions firm. The team provides reports on behavioral styles, strengths, growth areas, and team fit.

    Corporate Training & Coaching for Education Company

    • Business Consulting Corporate Training & Coaching Recruiting
    • Less than $10,000
    • Jan. 2023 - July 2024
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "I would recommend their services to every company."

    Jul 8, 2024
    CEO, Academy of Language LLC
    Katarzyna Murphy
    Verified
    • Education
    • Warsaw, Poland
    • 11-50 Employees
    • Online Review
    • Verified

    An education company hired EFFECTIVENESS INC for corporate training and coaching services. The team was responsible for taking the client through a leadership skills program and goal evaluation processes. 

    Corporate Training for Real Estate Company

    • Corporate Training & Coaching HR Consulting Talent Representation
    • Less than $10,000
    • Apr. 2017 - Feb. 2024
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    4.5

    "The greatest value was the ongoing merit-based support even after the project ended."

    Feb 15, 2024
    HR Manager, VINCI Facilities Polska Sp.z o.o.
    Magdalena Wachnicka
    Verified
    • Real estate
    • Warsaw, Poland
    • 201-500 Employees
    • Online Review
    • Verified

    EFFECTIVENESS INC provided corporate training services for a real estate company. The scope included analysis of staff competencies and business performance management.

    Showing 1-4 of 4 Reviews

    Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

    Learn More
    Verified Client Reviews
    4
    Overall Review Rating
    5
    Source
    Clutch
    Last Updated
    September 27, 2025

    Business Entity

    Business Entity Name EFFECTIVENESS Anna Sarnacka-Smith
    Source Poland Central Statistical Office
    Jurisdiction of Formation Poland
    Date of Formation September 1, 2016
    Status Active
    Last Updated September 18, 2025
    ID REGON: 365260304 NIP: 5432072090

    Credit Report Results

    International Credit Risk Assessment High Risk
    Source Creditsafe
    Last Updated September 18, 2025

    *Clutch performed additional verification on this company and confirmed that there are no negative legal filings or large outstanding debts. This company has also received 3 or more verified reviews on our platform.

    Learn More About The Clutch Verification Process

    Locations (2)

    27 Rodziny Połanieckich WarszawaPoland 01-924

    6 - 9

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    CandidFuture

    (1)
    CandidFuture Logotype

    Agnieszka Myśliwczyk

    EFFECTIVENESS - Badania kompetencji

    (1)
    EFFECTIVENESS - Badania kompetencji Logotype

    Anna Sarnacka-Smith