| Company Name: | UNITIL SERVICE CORP. |
| Employer identification number (EIN): | 020383661 |
| NAIC Classification: | 221100 |
The following addresses have been detected on the 401k submissions:
| USA Mailing Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2008-01-01 | |||||
| Date last seen: 2025-12-04 | |||||
| USA Location Address | |||||
|---|---|---|---|---|---|
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| Date first seen: 2008-01-01 | |||||
| Date last seen: 2025-06-30 | |||||
| USA Mailing Address | |||||
|---|---|---|---|---|---|
| |||||
| Date first seen: 2016-06-27 | |||||
| Date last seen: 2019-07-22 | |||||
| USA Location Address | |||||
|---|---|---|---|---|---|
| |||||
| Date first seen: 2016-06-27 | |||||
| Date last seen: 2019-07-22 | |||||
| USA Mailing Address | |||||
|---|---|---|---|---|---|
| |||||
| Date first seen: 2008-01-01 | |||||
| Date last seen: 2025-12-03 | |||||
| Plan id# | Plan Name | Plan Start Date | Plan Effective Date |
|---|---|---|---|
| 503 | UNITIL EMPLOYEE HEALTH AND WELFARE BENEFIT PLANS | 2014-01-01 | 2002-01-01 |
| 001 | UNITIL CORPORATION RETIREMENT PLAN | 2015-01-01 | 1985-01-01 |
| 520 | UNITIL RETIREE HEALTH AND WELFARE BENEFITS PLAN | 2015-01-01 | 2006-01-01 |
| Date | Type of contribution | Contribution | Number of participants/employees | Average contribution per participant | |
|---|---|---|---|---|---|
| 2023-08-15 | Employer Contributions | $ 1,000,000 | 514 | $ 1,946 | |
| 2023-08-15 | Employee Contributions | $ 1,000,000 | 514 | $ 1,946 | |
| 2023-07-17 | Employer Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2023-07-17 | Employee Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2023-06-15 | Employer Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2023-06-15 | Employee Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2023-05-16 | Employer Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2023-05-16 | Employee Contributions | $ 950,000 | 514 | $ 1,848 | |
| 2022-09-01 | Employer Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-09-01 | Employee Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-07-29 | Employer Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-07-29 | Employee Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-07-01 | Employer Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-07-01 | Employee Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-05-27 | Employer Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2022-05-27 | Employee Contributions | $ 950,001 | 421 | $ 2,257 | |
| 2020-09-09 | Employer Contributions | $ 4,664,999 | 429 | $ 10,874 | |
| 2020-09-09 | Employee Contributions | $ 4,664,999 | 429 | $ 10,874 | |
| 2018-09-07 | Employer Contributions | $ 14,278,542 | 513 | $ 27,833 | |
| 2018-09-07 | Employee Contributions | $ 14,278,542 | 513 | $ 27,833 | |
| 2018-07-10 | Employer Contributions | $ 290,470 | 513 | $ 566 | |
| 2018-07-10 | Employee Contributions | $ 290,470 | 513 | $ 566 | |
| 2018-03-30 | Employer Contributions | $ 290,711 | 513 | $ 567 | |
| 2018-03-30 | Employee Contributions | $ 290,711 | 513 | $ 567 | |
| 2017-08-31 | Employer Contributions | $ 1,366,666 | 502 | $ 2,722 | |
| 2017-08-31 | Employee Contributions | $ 1,366,666 | 502 | $ 2,722 | |
| 2017-06-29 | Employer Contributions | $ 1,366,667 | 502 | $ 2,722 | |
| 2017-06-29 | Employee Contributions | $ 1,366,667 | 502 | $ 2,722 | |
| 2017-03-31 | Employer Contributions | $ 1,366,667 | 502 | $ 2,722 | |
| 2017-03-31 | Employee Contributions | $ 1,366,667 | 502 | $ 2,722 | |
| 2016-08-31 | Employer Contributions | $ 3,146,000 | 291 | $ 10,811 | |
| 2016-08-31 | Employee Contributions | $ 3,146,000 | 291 | $ 10,811 | |
| 2016-06-30 | Employer Contributions | $ 1,000,000 | 291 | $ 3,436 | |
| 2016-06-30 | Employee Contributions | $ 1,000,000 | 291 | $ 3,436 | |
| 2016-03-31 | Employer Contributions | $ 1,000,000 | 291 | $ 3,436 | |
| 2016-03-31 | Employee Contributions | $ 1,000,000 | 291 | $ 3,436 | |
| 2015-08-31 | Employer Contributions | $ 2,365,000 | 494 | $ 4,787 | |
| 2015-08-31 | Employee Contributions | $ 2,365,000 | 494 | $ 4,787 | |
| 2015-06-30 | Employer Contributions | $ 925,000 | 494 | $ 1,872 | |
| 2015-06-30 | Employee Contributions | $ 925,000 | 494 | $ 1,872 | |
| 2015-03-31 | Employer Contributions | $ 925,000 | 494 | $ 1,872 | |
| 2015-03-31 | Employee Contributions | $ 925,000 | 494 | $ 1,872 | |
| 2014-12-31 | Employer Contributions | $ 640,000 | 491 | $ 1,303 | |
| 2014-12-31 | Employee Contributions | $ 640,000 | 491 | $ 1,303 | |
| 2014-09-30 | Employer Contributions | $ 640,000 | 491 | $ 1,303 | |
| 2014-09-30 | Employee Contributions | $ 640,000 | 491 | $ 1,303 | |
| 2014-09-15 | Employer Contributions | $ 1,055,000 | 491 | $ 2,149 | |
| 2014-09-15 | Employee Contributions | $ 1,055,000 | 491 | $ 2,149 | |
| 2014-06-30 | Employer Contributions | $ 288,117 | 491 | $ 587 | |
| 2014-06-30 | Employee Contributions | $ 288,117 | 491 | $ 587 | |
| 2014-03-31 | Employer Contributions | $ 288,117 | 491 | $ 587 | |
| 2014-03-31 | Employee Contributions | $ 288,117 | 491 | $ 587 | |
| 2013-09-06 | Employer Contributions | $ 3,700,000 | 478 | $ 7,741 | |
| 2013-09-06 | Employee Contributions | $ 3,700,000 | 478 | $ 7,741 | |
| 2012-09-14 | Employer Contributions | $ 3,120,000 | 1 | $ 3,120,000 | |
| 2012-09-14 | Employee Contributions | $ 3,120,000 | 1 | $ 3,120,000 | |
| 2012-06-29 | Employer Contributions | $ 747,000 | 1 | $ 747,000 | |
| 2012-06-29 | Employee Contributions | $ 747,000 | 1 | $ 747,000 | |
| 2012-05-11 | Employer Contributions | $ 156,000 | 1 | $ 156,000 | |
| 2012-05-11 | Employee Contributions | $ 156,000 | 1 | $ 156,000 | |
| 2012-03-30 | Employer Contributions | $ 3,147,000 | 1 | $ 3,147,000 | |
| 2012-03-30 | Employee Contributions | $ 3,147,000 | 1 | $ 3,147,000 | |
| 2012-01-13 | Employer Contributions | $ 1,071,000 | 1 | $ 1,071,000 | |
| 2012-01-13 | Employee Contributions | $ 1,071,000 | 1 | $ 1,071,000 | |
| 2011-09-30 | Employer Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2011-09-30 | Employee Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2011-06-30 | Employer Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2011-06-30 | Employee Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2011-03-31 | Employer Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2011-03-31 | Employee Contributions | $ 1,071,000 | 390 | $ 2,746 | |
| 2010-12-15 | Employer Contributions | $ 600,000 | 409 | $ 1,467 | |
| 2010-12-15 | Employee Contributions | $ 600,000 | 409 | $ 1,467 | |
| 2010-09-30 | Employer Contributions | $ 600,000 | 409 | $ 1,467 | |
| 2010-09-30 | Employee Contributions | $ 600,000 | 409 | $ 1,467 | |
| 2010-08-31 | Employer Contributions | $ 1,246,066 | 409 | $ 3,047 | |
| 2010-08-31 | Employee Contributions | $ 1,246,066 | 409 | $ 3,047 | |
| 2010-06-30 | Employer Contributions | $ 367,528 | 409 | $ 899 | |
| 2010-06-30 | Employee Contributions | $ 367,528 | 409 | $ 899 | |
| 2010-04-14 | Employer Contributions | $ 367,528 | 409 | $ 899 | |
| 2010-04-14 | Employee Contributions | $ 367,528 | 409 | $ 899 |