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Building an HR Function: A Step-by-Step Guide for Growing Companies

Yu PayneYu Payne
September 14, 2025
13 min read
Building an HR Function: A Step-by-Step Guide for Growing Companies

As a company grows, managing people effectively becomes as critical as scaling operations, sales, or technology. In the early stages, hiring may be ad hoc, policies informal, and training minimal. But beyond a certain point, businesses need a structured HR function to ensure fairness, compliance, engagement, and scalability.

This guide provides a step-by-step roadmap for setting up HR in a growing organization—from early-stage practices to standardized operations—helping founders, startups, and SMEs build a sustainable foundation for long-term success.

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Why Every Growing Company Needs an HR Function

Human Resources is not just about administrative tasks; it’s about aligning people strategy with business goals. Without HR, companies risk:

  • Inconsistent hiring decisions → leading to culture misfits and high turnover.

  • Legal issues → from non-compliance with labor laws and contracts.

  • Low employee engagement → due to unclear benefits, lack of feedback, and poor communication.

  • Scalability problems → when processes aren’t standardized, every new hire adds chaos.

A well-built HR function ensures compliance, structure, and people development—making the difference between surviving and thriving as you scale.

Stage 1: Early-Stage HR Strategy

At the early growth phase, many founders handle HR themselves. But even before a formal HR department exists, some steps must be taken:

  • Basic Policies: Working hours, leave entitlements, dress code, remote work guidelines.

  • Transparent Pay Practices: Salaries and raises must follow clear, fair logic.

  • Introduction to Benefits: Health insurance, transportation, meal allowances—even if minimal, must be defined and communicated.

👉 Pro Tip: Create an Employee Handbook early. Even a simple PDF with rules and policies reduces misunderstandings and sets expectations.

Stage 2: Defining Policies and Procedures

As headcount passes 20–30 employees, policies should be documented and standardized. This ensures alignment and legal compliance.

What to include in written policies:

  • Code of conduct (behavior, ethics, workplace culture)

  • Attendance & leave (vacation, sick days, parental leave)

  • Compensation & benefits (salary structures, insurance, allowances)

  • Grievance procedures (how employees can raise complaints)

  • Compliance policies (data privacy, health & safety, diversity & inclusion)

👉 Best Practice: Involve department heads when creating policies. This ensures buy-in and relevance to each team’s reality.

Stage 3: Recruitment and Onboarding

Recruitment

A growing company must move from reactive hiring (“We need someone now!”) to structured hiring:

  1. Write competency-based job descriptions → focusing on outcomes, not just years of experience.

  2. Leverage multiple sourcing channels → job boards, referrals, LinkedIn, niche communities.

  3. Structured interviews → use scorecards and rubrics to reduce bias.

Onboarding

A well-designed onboarding program reduces early turnover and boosts productivity.

  • Day 1: Company culture, HR policies, meet the team.

  • First 30 days: Role-specific training, shadowing, buddy system.

  • First 90 days: Clear deliverables, check-ins, performance feedback.

👉 Case Insight: Startups often run “Founders Onboarding” sessions, where leadership shares company vision directly with new hires. This builds loyalty and alignment.

Stage 4: Training and Development

A scaling business must invest in continuous learning to remain competitive.

  • Technical training: Skill-specific courses (software, compliance, product knowledge).

  • Soft skills training: Communication, leadership, teamwork.

  • E-learning & certifications: Affordable and scalable learning via online platforms.

  • Development budgets: Allowing employees to choose their own growth paths.

👉 Pro Tip: Track training ROI with metrics like improved performance scores, reduced errors, or faster project completion times.

Stage 5: Performance Management

Performance management ensures employees are aligned with company goals.

Best Practices:

  • SMART goals (Specific, Measurable, Achievable, Relevant, Time-bound).

  • Regular feedback cycles (monthly check-ins > yearly reviews).

  • 360-degree feedback → input from peers, managers, and self-assessment.

  • Development-focused reviews → not just evaluation, but coaching for growth.

👉 Mistake to Avoid: Using performance reviews only for promotions or raises. They must also serve as development conversations.

Stage 6: Employee Relations and Engagement

Employee engagement directly impacts productivity, retention, and company culture.

How to strengthen employee relations:

  • Open communication channels → regular town halls, surveys, suggestion boxes.

  • Conflict resolution frameworks → mediation, HR-led discussions.

  • Recognition programs → celebrating achievements publicly.

  • Work-life balance → flexible hours, remote/hybrid options.

👉 Insight: According to Gallup, highly engaged teams show 21% higher profitability. Engagement is not “nice-to-have”—it’s a growth driver.

Stage 7: Building a Competitive Benefits Package

Beyond salary, benefits play a huge role in retention.

Traditional benefits:

  • Health insurance

  • Meal/transportation allowances

  • Paid leave

Modern, flexible benefits:

  • Remote work & flexible schedules

  • Wellness programs (gym, therapy support)

  • Learning budgets

  • Stock options / equity (popular in startups)

👉 Best Practice: Run an employee benefits survey every 12 months to understand what matters most to your workforce.

Stage 8: HR in Startups vs SMEs

Startups:

  • Agile, fast, often creative in hiring (hackathons, referrals, social media sourcing).

  • Flexible benefits (remote-first, equity, unlimited PTO).

  • Flat structures → faster decision-making.

SMEs:

  • Structured hiring pipelines.

  • Compliance-heavy HR processes.

  • Standardized benefits, more hierarchy.

👉 Key Insight: Startups prioritize speed and flexibility, while SMEs focus on structure and compliance.

Stage 9: Standardizing HR Operations

When scaling from 50 → 200+ employees, HR must be standardized.

  • Documented processes: Recruitment, onboarding, exit interviews.

  • HR software tools: Automating payroll, attendance, and performance reviews.

  • Data-driven HR (People Analytics): Tracking turnover, engagement, and productivity metrics.

  • Internal audits: Ensuring compliance with labor laws and internal policies.

Stage 10: The Role of Experienced HR Professionals

At some stage, growing companies must bring in senior HR leaders.

  • Strategic alignment: Linking HR plans with company OKRs.

  • Employer branding: Positioning the company as a talent magnet.

  • Succession planning: Identifying and grooming future leaders.

  • Change management: Supporting organizational transformation smoothly.


Key Steps for Building an HR Function (Checklist)

  1. Define an HR strategy aligned with company goals.

  2. Document policies and procedures early.

  3. Establish structured recruitment and onboarding.

  4. Design continuous training and career paths.

  5. Implement fair performance management.

  6. Build transparent employee relations systems.

  7. Create a competitive and flexible benefits package.

  8. Standardize processes with HR tech tools.

  9. Hire experienced HR professionals for leadership.

  10. Continuously evaluate HR’s impact on growth.


Building HR as the Foundation of Growth

An HR function is more than an administrative necessity—it is the engine that drives sustainable growth. From defining company policies to building competitive benefits, from designing fair performance reviews to creating engaging workplaces, HR ensures that people and business objectives move in the same direction.

For startups, this means agility and creative solutions to attract talent. For SMEs, it means structured processes, compliance, and scalability. In both cases, HR acts as a strategic partner, not just a support unit.

Companies that invest early in HR functions enjoy:

  • Lower turnover and higher retention rates

  • Stronger employer branding and talent attraction

  • Clearer compliance and reduced legal risks

  • Increased employee satisfaction, engagement, and productivity

In short: your company cannot scale sustainably without HR.

👉 If your organization is at a turning point, start small but think big. Document one policy, launch one onboarding program, or test one performance review system. Step by step, you’ll create an HR function that supports your people, strengthens your culture, and accelerates your growth.

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Table with 10 rows and 3 columns
Early GrowthCommunicating policies, introducing basic benefits, simple hiring processesAll employees should clearly understand company rules, policies, and benefits
Assigning HR FunctionsRecruitment, onboarding, training, performance management, employee relationsHandled by trained HR professionals for consistency
RecruitmentPublishing job ads, conducting interviews, making hiring decisionsHire the right candidate for each role with structured processes
OnboardingOrienting new employees to policies, culture, and rolesSmooth onboarding accelerates cultural and operational adaptation
TrainingProviding necessary skills and knowledgeOngoing training boosts performance and engagement
Performance ManagementSetting goals, assessing performance, giving feedbackContinuous feedback ensures development and accountability
Employee RelationsManaging grievances, resolving conflicts, ensuring complianceHealthy relations increase satisfaction and productivity
Building the HR TeamHiring experienced HR professionalsA qualified HR team is essential for sustainable growth
GeneralBuilding an HR departmentA formal HR unit becomes a competitive advantage
OutcomeEvaluating HR’s contributionA well-functioning HR increases efficiency and employee satisfaction
StageEarly Growth
HR FunctionsCommunicating policies, introducing basic benefits, simple hiring processes
Key NotesAll employees should clearly understand company rules, policies, and benefits
StageAssigning HR Functions
HR FunctionsRecruitment, onboarding, training, performance management, employee relations
Key NotesHandled by trained HR professionals for consistency
StageRecruitment
HR FunctionsPublishing job ads, conducting interviews, making hiring decisions
Key NotesHire the right candidate for each role with structured processes
StageOnboarding
HR FunctionsOrienting new employees to policies, culture, and roles
Key NotesSmooth onboarding accelerates cultural and operational adaptation
StageTraining
HR FunctionsProviding necessary skills and knowledge
Key NotesOngoing training boosts performance and engagement
StagePerformance Management
HR FunctionsSetting goals, assessing performance, giving feedback
Key NotesContinuous feedback ensures development and accountability
StageEmployee Relations
HR FunctionsManaging grievances, resolving conflicts, ensuring compliance
Key NotesHealthy relations increase satisfaction and productivity
StageBuilding the HR Team
HR FunctionsHiring experienced HR professionals
Key NotesA qualified HR team is essential for sustainable growth
StageGeneral
HR FunctionsBuilding an HR department
Key NotesA formal HR unit becomes a competitive advantage
StageOutcome
HR FunctionsEvaluating HR’s contribution
Key NotesA well-functioning HR increases efficiency and employee satisfaction