UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM _________TO_________ Commission File Number: 001-40464 ZETA GLOBAL HOLDINGS CORP. (Exact name of Registrant as specified in its Charter) Delaware 80-0814458 (State ...

Exhibit 99.1 February 27, 2024 Zeta Delivers Fourth Consecutive Year of 20%+ Revenue Growth in 2023 Finished 2023 with 10 straight quarters of beating & raising guidance • Delivered revenue of $210M, up 20% Y/Y in 4Q’23, and $729M, up 23% Y/Y in 2023 • Increased Scaled Customer count 12% Y/Y and Super-Scaled Customer count 27% Y/Y • Grew Scaled Customer ARPU 10% Y/Y to $1.57M in 2023 • Generated cash flow from operating activities of $27M in 4Q’23, and $91M in 2023 • Guiding to fifth consecutive year of 20% ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40464 ZETA GLOBAL HOLDINGS CORP. (Exact name of registrant as specified in its charter) Delaware 80-0814458 (State or other jurisdiction of (I.R.S. Employer incorporation ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40464 ZETA GLOBAL HOLDINGS CORP. (Exact name of registrant as specified in its charter) Delaware 80-0814458 (State or other jurisdiction of (I.R.S. Employer incorporation or or ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-40464 ZETA GLOBAL HOLDINGS CORP. (Exact name of registrant as specified in its charter) Delaware 80-0814458 (State or other jurisdiction of (I.R.S. Employer incorporation or o ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number: 001-40464 ZETA GLOBAL HOLDINGS CORP. (Exact name of Registrant as specified in its Charter) Delaware 80-0814458 (State or other jurisdic ...