EX-99.1 2 ex-99-04272026_090450.htm JOINT FILING AGREEMENT

ex-99-04272026_090450.htm

EXHIBIT 99.1

JOINT FILING AGREEMENT

We, the undersigned, hereby express our agreement that the attached Schedule 13D (or any amendments thereto) relating to the common stock of Electro-Sensors, Inc. is filed on behalf of each of us.

Dated: April 27, 2026

BATTERY VENTURES XIV (AIV I CAYMAN), L.P. By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact BATTERY VENTURES XIV-EF (AIV I CAYMAN), L.P. By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact BATTERY INVESTMENT PARTNERS XIV (AIV I CAYMAN), LP By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact NEERAJ AGRAWAL By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact MICHAEL M. BROWN By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact MORAD ELHAFED By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact JESSE FELDMAN By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact RUSSELL L. FLEISCHER By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact BATTERY PARTNERS XIV (AIV I CAYMAN), L.P. By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact BATTERY PARTNERS XIV (AIV I CAYMAN), LTD. By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact




ROGER H. LEE By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact ZACHARY SMOTHERMAN By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact CHELSEA R. STONER By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact DHARMESH THAKKER By: /s/ Christopher Schiavo Name: Christopher Schiavo Title: Attorney-in-Fact