# EDGAR Filing Document

**Accession Number:** 0001694284
**File Stem:** 0001694284-25-000011
**Filing Date:** 2025-11
**Character Count:** 11430
**Document Hash:** 3be7c57b70483a985be2fbb98f7f2275
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001694284-25-000011.hdr.sgml**: 20251103

**ACCESSION NUMBER**: 0001694284-25-000011

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251103

**DATE AS OF CHANGE**: 20251103

**EFFECTIVENESS DATE**: 20251103

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tandem Investment Advisors, Inc.
- **CENTRAL INDEX KEY:** 0001694284

**ORGANIZATION NAME:**
- **EIN:** 541562552
- **STATE OF INCORPORATION:** SC
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-17677
- **FILM NUMBER:** 251443809

**BUSINESS ADDRESS:**
- **STREET 1:** 145 KING STREET
- **STREET 2:** SUITE 400
- **CITY:** CHARLESTON
- **STATE:** SC
- **ZIP:** 29401
- **BUSINESS PHONE:** 8437203413

**MAIL ADDRESS:**
- **STREET 1:** 145 KING STREET
- **STREET 2:** SUITE 400
- **CITY:** CHARLESTON
- **STATE:** SC
- **ZIP:** 29401

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 09-30-2025

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Tandem Investment Advisors Inc.<br>**Address:** 145 KING STREET<br>SUITE 400<br>CHARLESTON, SC 29401

**Form 13F File Number:** 028-17677

**CRD Number (if applicable):** 000109392

**SEC File Number (if applicable):** 801-57846

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Ben Carew<br>**Title:** Vice President<br>**Phone:** 8437203413

**Signature, Place, and Date of Signing:**

Ben Carew  Charleston, SC  11-03-2025<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 80

**Form 13F Information Table Value Total:** $2929318

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| ABBOTT LABORATORIES | COM | 002824100 |  | 132957 | 992660 | SH |  | SOLE |  | 982760 | 0 | 9900 |
| AMAZON COM INC | COM | 023135106 |  | 451 | 2054 | SH |  | SOLE |  | 2054 | 0 | 0 |
| AMPHENOL CORP NEW CL A | COM | 032095101 |  | 154701 | 1250108 | SH |  | SOLE |  | 1237308 | 0 | 12800 |
| APPLE COMPUTER INC COM | COM | 037833100 |  | 1481 | 5816 | SH |  | SOLE |  | 5816 | 0 | 0 |
| AUTOMATIC DATA PROCESSING | COM | 053015103 |  | 90849 | 309538 | SH |  | SOLE |  | 306538 | 0 | 3000 |
| BADGER METER INC COM | COM | 056525108 |  | 309 | 1728 | SH |  | SOLE |  | 1728 | 0 | 0 |
| BECTON DICKINSON  CO COM | COM | 075887109 |  | 50515 | 269890 | SH |  | SOLE |  | 267190 | 0 | 2700 |
| BERKSHIRE HATHAWAY B | COM | 084670207 |  | 253 | 503 | SH |  | SOLE |  | 503 | 0 | 0 |
| BROWN  BROWN INC | COM | 115236101 |  | 129919 | 1385214 | SH |  | SOLE |  | 1371714 | 0 | 13500 |
| CATERPILLAR INC DEL COM | COM | 149123101 |  | 208 | 436 | SH |  | SOLE |  | 436 | 0 | 0 |
| CHEVRON CORP | COM | 166764100 |  | 223 | 1436 | SH |  | SOLE |  | 1436 | 0 | 0 |
| CHURCH  DWIGHT INC COM | COM | 171340102 |  | 62647 | 714900 | SH |  | SOLE |  | 707700 | 0 | 7200 |
| COCA COLA CO COM | COM | 191216100 |  | 716 | 10801 | SH |  | SOLE |  | 10801 | 0 | 0 |
| QUIDEL CORP COM | COM | 219798105 |  | 220 | 7460 | SH |  | SOLE |  | 7460 | 0 | 0 |
| EXLSERVICE HOLDINGS IN COM | COM | 302081104 |  | 3168 | 71957 | SH |  | SOLE |  | 71957 | 0 | 0 |
| EXPEDITORS INTL WASH | COM | 302130109 |  | 42817 | 349268 | SH |  | SOLE |  | 345768 | 0 | 3500 |
| FACTSET RESH SYS INC COM | COM | 303075105 |  | 41864 | 146128 | SH |  | SOLE |  | 144628 | 0 | 1500 |
| FASTENAL COMPANY | COM | 311900104 |  | 601 | 12260 | SH |  | SOLE |  | 12260 | 0 | 0 |
| GARTNER INC COM | COM | 366651107 |  | 270 | 1027 | SH |  | SOLE |  | 1027 | 0 | 0 |
| GENERAL ELEC CO COM | COM | 369604103 |  | 424 | 1409 | SH |  | SOLE |  | 1409 | 0 | 0 |
| HENRY JACK  ASSOC INC COM | COM | 426281101 |  | 100549 | 675142 | SH |  | SOLE |  | 668642 | 0 | 6500 |
| HOME DEPOT INC COM | COM | 437076102 |  | 880 | 2172 | SH |  | SOLE |  | 2172 | 0 | 0 |
| INTUIT COM | COM | 461202103 |  | 58679 | 85925 | SH |  | SOLE |  | 85125 | 0 | 800 |
| JOHNSON  JOHNSON COM | COM | 478160104 |  | 52270 | 281900 | SH |  | SOLE |  | 279200 | 0 | 2700 |
| LOWES COS INC COM | COM | 548661107 |  | 227 | 903 | SH |  | SOLE |  | 903 | 0 | 0 |
| MICROSOFT CORP COM | COM | 594918104 |  | 123961 | 239330 | SH |  | SOLE |  | 237130 | 0 | 2200 |
| PEPSICO INC | COM | 713448108 |  | 297 | 2112 | SH |  | SOLE |  | 2112 | 0 | 0 |
| PHILIP MORRIS INTL INC COM | COM | 718172109 |  | 496 | 3056 | SH |  | SOLE |  | 3056 | 0 | 0 |
| PROCTER  GAMBLE CO | COM | 742718109 |  | 1819 | 11834 | SH |  | SOLE |  | 11834 | 0 | 0 |
| REPUBLIC SVCS INC COM | COM | 760759100 |  | 55516 | 241920 | SH |  | SOLE |  | 239620 | 0 | 2300 |
| RESMED INC COM | COM | 761152107 |  | 138293 | 505216 | SH |  | SOLE |  | 500216 | 0 | 5000 |
| ROPER TECHNOLOGIES INC COM | COM | 776696106 |  | 109844 | 220265 | SH |  | SOLE |  | 218065 | 0 | 2200 |
| ROSS STORES INC COM | COM | 778296103 |  | 222 | 1456 | SH |  | SOLE |  | 1456 | 0 | 0 |
| ROYAL BK CDA MONTREAL COM | COM | 780087102 |  | 596 | 4047 | SH |  | SOLE |  | 4047 | 0 | 0 |
| STRYKER CORP COM | COM | 863667101 |  | 103672 | 280444 | SH |  | SOLE |  | 277644 | 0 | 2800 |
| SYNOPSYS INC COM | COM | 871607107 |  | 2932 | 5943 | SH |  | SOLE |  | 5943 | 0 | 0 |
| TJX COS INC NEW COM | COM | 872540109 |  | 835 | 5776 | SH |  | SOLE |  | 5776 | 0 | 0 |
| TYLER TECHNOLOGIES INC COM | COM | 902252105 |  | 4828 | 9228 | SH |  | SOLE |  | 9228 | 0 | 0 |
| WAL MART | COM | 931142103 |  | 1240 | 12033 | SH |  | SOLE |  | 12033 | 0 | 0 |
| WISCONSIN ENERGY CORP COM | COM | 976657106 |  | 285 | 2488 | SH |  | SOLE |  | 2488 | 0 | 0 |
| FORTINET INC COM | COM | 34959e109 |  | 2798 | 33281 | SH |  | SOLE |  | 33281 | 0 | 0 |
| ABBVIE INC COM | COM | 00287Y109 |  | 2161 | 9335 | SH |  | SOLE |  | 9335 | 0 | 0 |
| ADOBE SYS INC COM | COM | 00724F101 |  | 4972 | 14095 | SH |  | SOLE |  | 14095 | 0 | 0 |
| AKAMAI TECHNOLOGIES INC | COM | 00971T101 |  | 2294 | 30285 | SH |  | SOLE |  | 30285 | 0 | 0 |
| ALTRIA GROUP INC | COM | 02209S103 |  | 409 | 6197 | SH |  | SOLE |  | 6197 | 0 | 0 |
| BLACKROCK INC COM | COM | 09247X101 |  | 83247 | 71403 | SH |  | SOLE |  | 70753 | 0 | 650 |
| BLACKSTONE GROUP L P COM UNIT | COM | 09260d107 |  | 606 | 3545 | SH |  | SOLE |  | 3545 | 0 | 0 |
| CBOE HLDGS INC COM | COM | 12503M108 |  | 3282 | 13384 | SH |  | SOLE |  | 13384 | 0 | 0 |
| COMCAST CORP NEW CL A | COM | 20030N101 |  | 74700 | 2377476 | SH |  | SOLE |  | 2354976 | 0 | 22500 |
| CORTEVA INC COM | COM | 22052l104 |  | 241 | 3559 | SH |  | SOLE |  | 3559 | 0 | 0 |
| COSTCO WHOLESALE CORP | COM | 22160K105 |  | 48737 | 52652 | SH |  | SOLE |  | 52152 | 0 | 500 |
| DU PONT E I DE NEMOURS | COM | 26614n102 |  | 275 | 3532 | SH |  | SOLE |  | 3532 | 0 | 0 |
| ESSENTIAL UTILS INC COM | COM | 29670G102 |  | 37860 | 948863 | SH |  | SOLE |  | 939263 | 0 | 9600 |
| META PLATFORMS INC CL A | COM | 30303M102 |  | 263 | 358 | SH |  | SOLE |  | 358 | 0 | 0 |
| ALPHABET INC CL A | COM | 38259p508 |  | 358 | 1471 | SH |  | SOLE |  | 1471 | 0 | 0 |
| ALPHABET INC CL C | COM | 38259p706 |  | 563 | 2311 | SH |  | SOLE |  | 2311 | 0 | 0 |
| IDEXX LABS INC COM | COM | 45168D104 |  | 7501 | 11740 | SH |  | SOLE |  | 11740 | 0 | 0 |
| INTERCONTINENTAL EXCHANGE INC | COM | 45866F104 |  | 142790 | 847518 | SH |  | SOLE |  | 839218 | 0 | 8300 |
| INTUITIVE SURGICAL INC COM NEW | COM | 46120e602 |  | 4123 | 9219 | SH |  | SOLE |  | 9219 | 0 | 0 |
| JPMORGAN CHASE  CO | COM | 46625H100 |  | 368 | 1168 | SH |  | SOLE |  | 1168 | 0 | 0 |
| KINSALE CAP GROUP INC COM | COM | 49714P108 |  | 341 | 801 | SH |  | SOLE |  | 801 | 0 | 0 |
| MSCI INC COM | COM | 55354g100 |  | 507 | 894 | SH |  | SOLE |  | 894 | 0 | 0 |
| MASTERCARD INC CL A | COM | 57636Q104 |  | 116818 | 205373 | SH |  | SOLE |  | 203473 | 0 | 1900 |
| MEDPACE HLDGS INC COM | COM | 58506Q109 |  | 7562 | 14708 | SH |  | SOLE |  | 14708 | 0 | 0 |
| MERCK  CO INC NEW COM | COM | 58933y105 |  | 260 | 3101 | SH |  | SOLE |  | 3101 | 0 | 0 |
| NEXTERA ENERGY INC COM | COM | 65339F101 |  | 104965 | 1390453 | SH |  | SOLE |  | 1377453 | 0 | 13000 |
| NVIDIA CORP COM | COM | 67066G104 |  | 276 | 1480 | SH |  | SOLE |  | 1480 | 0 | 0 |
| O REILLY AUTOMOTIVE COM | COM | 67103H107 |  | 6678 | 61938 | SH |  | SOLE |  | 61938 | 0 | 0 |
| QUALYS INC COM | COM | 74758T303 |  | 5603 | 42344 | SH |  | SOLE |  | 42344 | 0 | 0 |
| TERRENO RLTY CORP COM | COM | 88146m101 |  | 80521 | 1418870 | SH |  | SOLE |  | 1405570 | 0 | 13300 |
| UNITEDHEALTH GROUP INC COM | COM | 91324P102 |  | 305 | 882 | SH |  | SOLE |  | 882 | 0 | 0 |
| VERISK ANALYTICS INC COM | COM | 92345y106 |  | 44735 | 177866 | SH |  | SOLE |  | 176166 | 0 | 1700 |
| VISA INC                CL A | COM | 92826C839 |  | 148808 | 435901 | SH |  | SOLE |  | 431601 | 0 | 4300 |
| WASTE CONNECTIONS INC COM | COM | 94106B101 |  | 66687 | 379332 | SH |  | SOLE |  | 375732 | 0 | 3600 |
| ZOETIS INC CL A | COM | 98978v103 |  | 115628 | 790241 | SH |  | SOLE |  | 782441 | 0 | 7800 |
| ACCENTURE PLC IRELAND SHS CLAS | COM | G1151C101 |  | 101894 | 413194 | SH |  | SOLE |  | 409194 | 0 | 4000 |
| EATON CORP PLC SHS | COM | g29183103 |  | 352 | 942 | SH |  | SOLE |  | 942 | 0 | 0 |
| GENPACT LIMITED SHS | COM | g3922b107 |  | 122997 | 2936194 | SH |  | SOLE |  | 2907194 | 0 | 29000 |
| STERIS PLC SHS USD | COM | g84720104 |  | 114587 | 463089 | SH |  | SOLE |  | 458589 | 0 | 4500 |
| AMGEN INC COM | COM | 031162100 |  | 212 | 750 | SH |  | SOLE |  | 750 | 0 | 0 |

---