Pick two. The table shows their rating, their Openness score and the facts behind it, each from the vendor's own pages.
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ADP RUN is built for small business owners with 1 to 49 employees who need a reliable way to pay their team and handle HR basics. You can run payroll in minutes, and ADP automatically calculates, deducts, and files your federal, state, and local payroll taxes. It also helps you with hiring, onboarding, time tracking, and employee benefits — all in one place. Over 900,000 small businesses use it, and it's rated #1 for small business payroll on G2.
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ADP RUN uses AI-enabled error flagging to catch common payroll mistakes before they affect your business. It also provides data-driven salary benchmarking insights to help you stay competitive when hiring.
ADP RUN is a strong pick for small business owners who want a trusted, full-featured payroll and HR platform without building it themselves. Its biggest strength is rock-solid tax compliance across all 50 states, so you don't have to worry about filing deadlines or penalties. The main downside is that pricing isn't transparent — you have to contact sales to get a quote, and costs can add up quickly as you add features.