- Winner & Mandabach has more experience in ballot measure campaigns than any firm in the nation. W&M has managed and consulted on more than 160 statewide and local ballot measure campaigns in 28 states, and has maintained a win rate of over 90%.
- In the 2011-2012 election cycle, W&M was undefeated, winning 7 ballot measure votes in California, Washington state, Rhode Island & Missouri. Six of these wins were YES votes, which are historically much more difficult to win than NO votes.
- Over the last 10 years, W&M has won 30 out of 32 statewide ballot measure votes, including 20 YES votes.