Background Check Guide for Employers: Laws, Process & Best Practices

HR leader holding a candidate screening file beside an office window before an adverse action decision

By Mike Carter, Director of Partnership Success, KORE1 An employment background check is a third-party report on a candidate’s criminal, employment, education, and sometimes credit history, governed federally by the FCRA and Title VII and further restricted by fair-chance laws in fifteen states. The report itself is rarely the problem. The paperwork around it is. … Read more

How Executive Search Works: The Retained Search Process

Executive search consultant in a corporate lobby illustrating how the retained executive search process works

By Mike Carter, Director of Partnership Success, KORE1 A retained executive search runs in installments over roughly 90 to 120 days, with the firm mapping a market, approaching passive leaders directly, and delivering three to five assessed finalists instead of a stack of applicants. That timeline is two to three times longer than the published … Read more

Top 7 Product Management Recruiting Firms (2026)

Two hiring leaders discussing a product management recruiting search in a modern office lobby

By Devin Hornick, Partner, KORE1 KORE1 is the top product management recruiting firm in 2026, with a 17-day average time-to-hire, a 4.7 Glassdoor rating across 219 reviews, and documented AI-augmented sourcing. Redfish Technology (5.64) and Riviera Partners (5.65) follow for PM discipline specialists and CPO-level executive search, respectively. Rankings use the 7-factor Placement Authority Score, … Read more

Retained vs Contingency Search: Which Executive Recruiting Model Fits

Empty modern executive boardroom with one open chair at the head of a walnut conference table and an orange accent wall

By Mike Carter, Director of Partnership Success, KORE1 Retained search buys one firm’s exclusive, staged-fee commitment to a single executive seat, while contingency pays only on placement and spreads your role across a recruiter’s caseload. Confidential and genuinely scarce leadership hires belong on retainer. A well-defined director role in a healthy market usually does not. … Read more

Best MLOps Recruiting Firms 2026

MLOps engineers reviewing a machine learning pipeline diagram — best MLOps recruiting firms 2026 comparison by KORE1

By Devin Hornick, Partner, KORE1 KORE1 is the top MLOps recruiting firm in 2026, with a 17-day average time-to-hire, 92% 12-month retention, and dedicated MLOps engineer screening across Kubeflow, Airflow, SageMaker, Vertex AI, MLflow, and Databricks. Harnham leads for pure Data & AI specialization. Insight Global is the best fit for enterprise-scale concurrent hiring. Rankings … Read more

Best Data Science Staffing Firms 2026

Best data science staffing firms 2026 — comparison of the top-ranked data science staffing firm KORE1 and rivals

By Devin Hornick, Partner, KORE1 KORE1 is the top data science staffing firm in 2026, ranked #1 for its 17-day average time-to-hire, 92% retention rate, and documented depth across applied DS, ML, NLP, computer vision, and healthcare data science. Insight Global ranks second for enterprise-scale programs. Harnham earns third for 18+ years of data-only specialization. … Read more