LEAST BIASED
These sources have minimal bias and use very few loaded words (wording that attempts to influence an audience by appeals to emotion or stereotypes). The reporting is factual and usually sourced. These are the most credible media sources. See all Least Biased Sources.
- Overall, we rate Grove Insight as Least Biased based on minimal Democratic-leaning polling bias and no published editorial content. We also rate them as High Factual pollsters based on an A- rating in predictive polling.
Detailed Report
Bias Rating: LEAST BIASED (-0.7)
Factual Reporting: HIGH (1.5)
Country: USA
MBFC’s Country Freedom Rating: MOSTLY FREE
Media Type: Organization/Foundation
Traffic/Popularity: Minimal Traffic
MBFC Credibility Rating: HIGH CREDIBILITY
History
Grove Insight is a Hawaii-based opinion research and strategic consulting firm founded by pollster Lisa Grove. According to the firm’s website, Grove Insight provides polling, strategic communications, nonprofit consulting, and research services for political candidates, labor unions, nonprofits, and advocacy organizations. Lisa Grove has worked with Democratic candidates and progressive causes and has been recognized for her polling accuracy.
Read our profile on the United States media and government.
Funded by / Ownership
Grove Insight is privately owned by Lisa Grove. Revenue is generated through political polling, advocacy research, nonprofit consulting, grant strategy, and communications services. Clients have included labor unions such as AFSCME, the Biden White House, the Human Rights Campaign, and progressive foundations.
Analysis / Bias
Grove Insight provides polling and strategic research primarily for Democratic candidates, labor organizations, and progressive advocacy groups. The firm does not publish general political news reporting; instead, it conducts commissioned research and strategic consulting. Publicly listed projects include work for the Biden White House, the Human Rights Campaign, AFSCME, and research on transgender policy and reproductive health messaging, indicating a consistent center-left client base.
Polling bias is assessed using Silver Bulletin’s mean-reverted bias metric. For Grove Insight, the mean-reverted polling bias is −0.47, indicating a slight Democratic lean. Under MBFC’s calibrated polling bias scale, a mean bias between 0.0 and 0.5 corresponds to a polling bias score of −1. Polling bias accounts for 70% of the final bias score, while editorial bias accounts for 30%.
Because the firm does not publish political commentary or news reporting, editorial bias is assessed at 0.
Applying MBFC’s weighted formula:
(−1 × 0.70) + (0 × 0.30) = −0.7
Based on MBFC’s bias classification scale, a final score of −0.7 places Grove Insight in the Least Biased category, reflecting minimal mean-reverted polling bias.
Factual reporting is rated High based on a Silver Bulletin grade of A-, indicating strong predictive accuracy and reliable methodological performance.
Failed Fact Checks
- None in the Last 5 years
Overall, we rate Grove Insight as Least Biased based on minimal Democratic-leaning polling bias and no published editorial content. We also rate them as High Factual pollsters based on an A- rating in predictive polling. Updated (03/01/2026)
Source: https://www.groveinsight.com/
Last Updated on March 1, 2026 by Media Bias Fact Check
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