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Human Resources Agencies

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Adamas Group

Adamas Group is a boutique recruitment firm focused on direct hire placement across the NYC/NJ metropolitan area, built on a customer-centric philosophy that prioritizes genuine, one-to-one relationships with clients and candidates. The team invests time to learn what makes each organization distinctivethe culture, the mission, and the energy that inspires employeesso they can translate that story into compelling outreach that attracts top talent. With more than 20 years of staffing experience in one of the worlds most competitive labor markets, the firm applies hard-earned insight to help employers navigate shifting conditions, streamline interview processes, and improve retention strategies. Founded by CEO Rainier Castrillo, who began his recruiting career in New York City in the late 1990s, Adamas Group rejects gimmicks and transactional practices, opting instead for transparency, trust, and detail-oriented execution. Its specialty spans critical corporate functions that power finance and operations, including Accounting, Financial Planning & Analysis, Tax, Audit, SEC and Financial Reporting, Technical Accounting, and Office Administration/Human Resources. For employers, the firm covers the full lifecycle of direct hire engagementfrom identifying and assessing viable candidates to managing offers and mitigating counterofferswith a 90-day guarantee on permanent hires and complimentary consultations. For job seekers, Adamas Group provides practical, hands-on support such as resume optimization, company research, interview strategy and preparation, and offer negotiation, guiding professionals through the complexities of modern career moves with empathy and discretion. Operating on a contingency basis with fees due only when a successful match is made, the firm blends market acuity, structured recruitment plans, and high-touch service to build exceptional teams and enduring cultures, ultimately aligning business needs with the aspirations of a curated network of highly capable professionals.

Permanent RecruitmentExec Search & Interim MgmtSOW/ProjectsManagement ConsultingLegalAccounting (Audit, Tax)InsuranceInvestment ManagementFinTech

HQNew York, United States

Harmonia

Harmonia RH is a boutique coaching and HR advisory practice led by Solenne Tournier, an SFCoach practitioner, dedicated to helping organizations and individuals enhance performance, confidence, and well-being. Based in Buc (Yvelines) and operating across Paris, Île-de-France, and throughout France, the firm partners with managers, recruiters, decision-makers, and employees to create safe, efficient, and stimulating work environments. Harmonia RH’s professional coaching focuses on leadership development, effective communication, conflict management, and public speaking, while also addressing change readiness during reorganizations, rapid growth, new role onboarding, responsibility expansion, and expatriation. Programs are designed to restore motivation, reinforce self-confidence, and transform opportunities into success by aligning personal aptitudes and soft skills with professional competencies. The practice supports clients in stress and priority management, prevention and recovery from burnout, and the cultivation of assertiveness and emotional intelligence to strengthen relationships and teamwork. On the HR consulting side, Harmonia RH helps leaders translate people strategies into tangible outcomes through tailored diagnostics, clear goal-setting, and pragmatic action plans that improve engagement, cohesion, and productivity. Interventions are delivered through individual coaching, manager-focused sessions, and targeted workshops, with a confidential, ethical, and results-oriented approach. Clients value the empathetic guidance and structured methods that open new professional horizons, support career transitions, and drive sustainable performance improvements. Whether supporting a leader to progress in their leadership, guiding a team through a critical transformation, or helping an employee regain professional momentum, Harmonia RH brings a balanced blend of human-centric coaching and rigorous HR advisory, ensuring measurable impact on organizational culture and individual growth in both professional and personal contexts.

SOW/ProjectsTotal Talent MgmtExec Search & Interim MgmtManagement ConsultingLegalAccounting (Audit, Tax)Project ManagementAll industriesHuman Resources

HQParis, France

BurgeonHR

Founded to help small businesses and startups flourish, BurgeonHR is an HR consulting and outsourcing partner that builds the foundation for people operations so founders can focus on growth. The firms partnership approach centers on educating clients on HR topics, empowering decision-makers with clear options, and executing commitments with flexibility, simplicity, and honesty. With over 15 years of combined experience drawn from both Fortune 500 environments and fast-moving startups, co-founders Rutu Patel and Joanna Rodriguez translate enterprise-grade practices into right-sized programs for early-stage teams. BurgeonHRs services span labor regulations and compliance, end-to-end HR audits to uncover risk and gaps, customized employee handbooks that align mission, vision, goals and culture, and pragmatic evaluation and selection of HR systems and processes. They design and operationalize core employee lifecycle workflowsincluding talent acquisition strategy, recruitment process design or hands-on support, structured onboarding and offboarding, employee relations guidance, and performance management frameworks for promotions, feedback, learning, and talent mappingso companies improve employee experience and retention while mitigating exposure. Clients cite the teams ability to demystify state-specific requirements such as New York regulations, craft compliant job descriptions and policies, and stand up benefits and people ops quickly, saving founders time and avoiding costly missteps. Beyond implementation, BurgeonHR helps leaders embed DEI and belonging through data-driven surveys and programs, and shares practical, step-by-step advice on hiring and culture through its blog. By establishing clear policies, processes, and metrics, the firm makes HR understandable and actionable for non-HR founders, creating repeatable hiring routines, interview training, and feedback loops tied to business goals. Whether engaged for a focused project like an HR audit or handbook, or for a more comprehensive, fractional people operations solution that includes day-to-day recruiting support and ongoing HR administration, BurgeonHR meets clients where they are and scales support as they grow. The result is a compliant, values-aligned HR foundation that enables better hiring, stronger engagement, and sustainable performance across the organization.

Permanent RecruitmentRPOSOW/ProjectsManagement ConsultingLegalAccounting (Audit, Tax)Project ManagementAll industriesHuman Resources

HQNew York, United States

Pillar Search & HR Consulting

Based in Boston, MA, Pillar Search & HR Consulting is a woman-owned boutique firm specializing in nonprofit executive search and pragmatic HR advisory for mission-driven organizations nationwide. Founded and led by Cindy Joyce with over two decades of industry experience, Pillar partners with exceptional nonprofits and select socially responsible for-profit organizations that seek leaders driven by occupassionpeople who see their roles as a calling, not just a job. The firm is best known for highly personalized service, rigorous research, and a transparent search process tailored to boards and hiring committees, resulting in placements that align leadership capability, cultural fit, and mission. Pillars recent activity underscores deep sector expertise at the executive level, including CEO, Executive Director, and COO searches such as The Arc of Plymouth and Upper Cape Cods CEO, Minute Man Arcs CEO, the CEO of Delta Projects, the Chief Operating Officer for The Arc of Massachusetts, the Executive Director for Accompany Doula Care, and the Executive Director for the Boston Preservation Alliance. In addition to retained executive search, Pillar offers flexible HR consulting that emerged from client demand for support beyond recruitmentcovering areas such as organization design, talent strategy, HR operations, and project-based initiatives that strengthen people practices and compliance while enabling growth. Clients value Pillars national reach, sector fluency across social services, community health, and arts and culture, and a collaborative, ethical approach that emphasizes stakeholder engagement and inclusive hiring. From intake through onboarding, Pillar provides clear communication, thoughtful candidate care, and disciplined evaluation, ensuring diverse, qualified shortlists and lasting hires. With a proven track record, testimonials from boards and executives, and consistent search successes, Pillar Search & HR Consulting delivers measurable outcomes for nonprofits that need leaders who can accelerate impact and advance their missions.

Exec Search & Interim MgmtPermanent RecruitmentSOW/ProjectsFundraisingSocial ServicesEnvironmental ConservationSenior ExecutivesHuman ResourcesGeneralist - white collar professionals

HQBoston, United States

Autwork

Autwork is a boutique human resources and recruitment firm that helps organizations hire with confidence by combining disciplined search methods with a service minded approach. Based on its LinkedIn presence, the company operates with a close knit team of five professionals, enabling clients and candidates to work directly with experienced consultants throughout each stage of the hiring process. Autwork focuses on three core solutions that many employers rely on to scale effectively: permanent recruitment for critical hires, contract staffing for specialized time bound projects, and temporary staffing to meet short term capacity needs. The firm concentrates on white collar functions and leadership roles, positioning itself as a generalist partner within professional services environments and collaborating closely with founders, HR leaders, and hiring managers to clarify role requirements, define success criteria, and align selection to business outcomes. Its delivery model features structured discovery, market calibration, targeted sourcing, competency based assessment, and transparent shortlisting, supported by modern research tools and a consistent commitment to fair and inclusive evaluation. Autwork emphasizes candidate experience and communication, maintaining clear timelines, preparing candidates for interviews, and providing constructive feedback to build trust on both sides of the market. For employers, the team provides labor market insights, compensation benchmarks, and process recommendations designed to reduce time to hire and improve quality of hire while maintaining compliance and documentation standards. For professionals, Autwork offers practical guidance on positioning, portfolio and resume refinement, and interview readiness, seeking durable matches rather than transactional placements. Whether a client needs a single specialist, a short term contractor to accelerate delivery, or a leader to shape a new function, Autwork adapts its search and selection process to the context and delivers a concise, data informed slate that balances skills, potential, and culture add. This pragmatic, transparent, and outcomes oriented approach defines Autwork as a reliable partner for growing teams.

Permanent RecruitmentContract StaffingTemporary StaffingManagement ConsultingLegalAccounting (Audit, Tax)Project ManagementGeneralist - white collar professionalsHuman Resources

Main Dynamic Solutions, LLC

Main Dynamic Solutions, LLC (MDS) is a Service Disabled Veteran Owned Small Business headquartered in Omaha, Nebraska, that partners with small businesses, franchises, startups, and government contractors to build scalable people systems and modernize hiring. Led by founder Ryan Main, MHRMa retired U.S. Army officer with 24 years of service and 20+ years of strategic operations and HR leadership experienceMDS blends real-world leadership with hands-on HR expertise to connect people strategy to business strategy. The firm delivers fractional HR leadership and interim support, end-to-end recruiting services, and hiring process optimization that strengthens sourcing, matching, screening, scheduling, and selection. MDS also implements HR technologyfrom ATS selection through onboarding toolstrains internal teams, and drives compensation and job structure analysis, workforce planning and organizational design, and change management with practical playbooks, live coaching, and in-market support. For public sector partners, MDS maintains active SAM registration and SBA 8(a) eligibility for streamlined sole-source awards, enabling agencies and primes to move faster while meeting small business participation goals; identifiers include CAGE code 7Y7L3 and DUNS 080866612, with primary NAICS 541612 (Human Resources Consulting Services) and 541611 (Administrative & General Management Consulting), plus 561110 (Office Administrative Services) and 611430 (Professional and Management Development Training). Whether a company is facing turnover, stalled growth, or team misalignment, MDS diagnoses root-cause issues and builds repeatable systems so owners can scale without losing control. Based near Offutt Air Force Base and serving clients nationwide, MDS tailors each engagement to the stage and needs of the business, offering flexible supportavailable as much or as little as requiredbacked by proven processes, veteran-caliber leadership, and a steady, practical approach that aligns people, process, and performance.

RPOPermanent RecruitmentSOW/ProjectsManagement ConsultingLegalAccounting (Audit, Tax)Law EnforcementMilitary & DefenseEducation Administration

HQOmaha, United States

Solenn Thomas Conseil

Solenn Thomas Conseil is a boutique executive search practice dedicated to the recruitment and promotion of top leaders for mission-driven companies, family-owned businesses, social and solidarity economy organizations (ESS), and enterprises undergoing transformation. Led by experienced headhunter Solenn Thomas, the firm brings 20 years of expertise in recruiting executive and C‑suite profiles across industry, services, retail, technology, culture, and the non-profit sphere, with a distinctive human-first method known as recrutement affinitaire to ensure long-term fit and impact. Assignments typically target members of the executive committee and key leadership roles—including CEO/General Manager, CHRO, Chief Sustainability/CSR Officer, COO, and other pivotal functions—and combine rigorous, “outside the box” direct search with cooptation and digital strategies; clients are presented with 3 to 5 qualified finalists within four weeks, and internal high-potential talent is deliberately included in external talent pools to foster fair, holistic decisions. Beyond sourcing and selection, the firm designs and facilitates collective evaluation processes, leading seminars that enable co-responsibility in hiring and support leadership team transformation, reflecting a partnership approach that extends past signature to ensure lasting success. Deeply committed to feminization of leadership and broader human diversity, Solenn served from 2020 to 2022 on the shadow committee of Elisabeth Moreno, then Minister Delegate for Diversity, and remains active in several women’s networks; she also founded Eklore in 2015, an association promoting a humanist work culture through professional communities, events, and forward-looking research on work and human singularities. Her approach integrates philosophy and meditation to deconstruct cognitive biases and cultivates clarity and benevolence in interviews, earning trust from clients such as RATP Dev, Roole, SeaBird, Fondation pour la Nature et l’Homme, CETIH, AgroNutris, ENGAGE, and UNCPIE. Testimonials highlight precision, speed, creativity, and a robust service-after-care ethic, positioning Solenn Thomas Conseil as a high-touch partner for leaders who align performance with economic, social, and environmental value.

Exec Search & Interim MgmtPermanent RecruitmentSOW/ProjectsFundraisingSocial ServicesEnvironmental ConservationIndustrial AutomationManagement ConsultingLegal

HQParis, France

Kelta HR

Kelta HR is a specialist recruitment consultancy focused on connecting human resources, people operations, and talent-focused professionals with organizations that value effective people strategy. Operating as a niche partner, the firm supports hiring across core HR disciplines including generalist HR, talent acquisition, learning and development, reward and benefits, employee relations, HR systems and analytics, and payroll and HR administration. Kelta HR delivers three core services tailored to client needs and market conditions: permanent recruitment for building enduring in-house capability, executive search and interim management for leadership and change mandates, and temporary staffing for flexible coverage and project surges. Its consultants take a consultative, insight-led approach that blends targeted market mapping, deep candidate networking, and structured competency-based assessment to deliver shortlists that align experience, culture, and impact. For employers, the firm provides pragmatic guidance on role scoping, salary benchmarking, skills prioritization, inclusive selection processes, and offer and onboarding strategy, helping teams move from requisition to accepted offer with clarity and speed. For candidates, Kelta HR offers candid career advice, CV refinement, interview preparation, and transparent feedback to support confident decision making at every stage. The firm emphasizes discretion and integrity in handling confidential searches, and promotes inclusive hiring practices that expand access to opportunity while strengthening organizational performance. Whether building an HR function, backfilling a critical post, or securing an interim leader to steer transformation, clients rely on Kelta HR for responsive communication, market insight, and delivery discipline. Its process is designed to reduce time to hire without compromising quality, underpinned by thorough screening, reference checks where appropriate, and continuous engagement that keeps stakeholders aligned. By remaining focused on outcomes that matter to both employers and professionals, Kelta HR helps create resilient HR teams that enable organizations to attract, develop, and retain talent more effectively.

Permanent RecruitmentExec Search & Interim MgmtTemporary StaffingManagement ConsultingLegalAccounting (Audit, Tax)Project ManagementHuman ResourcesSenior Executives

HQHassocks, United Kingdom

Total Circle HR

Total Circle HR is a New Yorkbased human resources consultancy founded and led by Penny McNerney, SPHR, SHRM-SCP, that helps small and mid-sized organizations build healthy, compliant, and high-performing workplaces. Drawing on more than two decades of domestic and global experience across public, private, nonprofit, start-up, family-owned, educational, and unionized environments, the firm provides practical HR outsourcing and project-based solutions that cover the full employee lifecycle. Core capabilities include talent acquisition support and recruitment process optimization to help clients attract, hire, and retain qualified talent; structured onboarding and offboarding programs that reduce time-to-productivity and risk; policy, procedure, and employee handbook development; and employee relations, including discreet workplace investigations that protect people and businesses. Total Circle HR also guides culture and leadership development to strengthen engagement and communication at all levels, designs compensation structures and benefits communication to improve competitiveness and pay clarity, and manages compliance and risk through FLSA classification, HR audits, and emergency action planning. For larger initiatives, the firm delivers HR Solutions as defined SOW projectsleading HR technology selection, system and software implementation, and change managementso improvements are adopted and sustained. Its approach is transparent, collaborative, and outcomes-focused: consultants take the time to understand each clients goals, constraints, and culture, then tailor frameworks, workflows, and training that fit the organizations stage and resources. Clients value the ability to scale support, from fractional HR leadership to hands-on project delivery, while maintaining the human touch that builds trust with leaders and employees alike. Anchored in New York, NY and serving clients nationwide, Total Circle HR combines enterprise-grade rigor with small-business agility, sharing practical insights through its HR4U resources and partnering closely with owners and executives to streamline operations, strengthen compliance, and create cultures where people can do their best work.

RPOSOW/ProjectsTotal Talent MgmtManagement ConsultingLegalAccounting (Audit, Tax)Environmental ConservationPhilanthropyHigher Education (Faculty, Administration)

HQNew York, United States

HR Talent Alliance

HR Talent Alliance is a New Yorkbased boutique people and talent solutions firm that blends executive search, permanent recruitment, and on-demand HR advisory with career and leadership coaching. For employers, the firm delivers specialized executive search and full-cycle hiring support, operating as an embedded, in-house recruiter when needed to guide every step of the process. Its methodology covers role scoping, competency and skills definition, compensation calibration, and tightly targeted search campaigns, resulting in culturally aligned shortlists and a smooth candidate experience. Beyond hiring, HR Talent Alliance provides comprehensive people services, including performance management design, onboarding programs, employee relations guidance, training, and leadership development initiatives delivered flexibly on an as-needed basis. For individuals, experienced coaches offer practical career strategy, job search planning, resume and LinkedIn optimization, interview preparation, executive branding, and leadership coaching to support transitions at every career stage. With hands-on experience across financial services and professional services environments, the team brings real-world HR leadership and recruiting know-how, advising hiring managers on structured interviewing, selection best practices, and pay equity considerations. As a boutique practice, clients work directly with senior recruiters who prioritize responsiveness, transparency, and long-term relationships, while candidates benefit from honest feedback and tailored guidance. HR Talent Alliances search approach combines targeted outreach, network referrals, and confidential sourcing to engage passive talent, supported by behavioral assessments and structured screening that de-risk hiring decisions. Engagement models span retained executive search, contingent permanent placement, and project-based embedded recruiting, and the firms jobs portal streamlines the discovery and application process for open roles. Whether a growth-stage company making a pivotal leadership hire or an experienced professional planning the next chapter, HR Talent Alliance delivers practical, high-impact solutions exactly when and where they are needed.

Exec Search & Interim MgmtPermanent RecruitmentRPOBankingInsuranceInvestment ManagementHuman ResourcesTechnical WritingProject Management

HQNew York, United States

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