Suffolk Construction Company Inc.
Plan context: Suffolk Construction Company Inc. 401K Retirement Plan
EIN 04-2776356 • Boston, MA • 54 filings • 8 plans
Current Snapshot
Latest Year
2024
2024 Participants
2,173
2024 Assets
$336,415,812
2024 Contributions
$38,918,345
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2024 | 2 | 2,173 | $336,415,812 | $38,918,345 | $17,910iApproximate average salary by contribution assumption: employee only about $447,749 at 4% or $298,499 at 6%; with 50% employer match about $298,499 at 4% or $199,000 at 6%; with 100% employer match about $223,875 at 4% or $149,250 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 2,173 | $336,415,812 | $38,918,345 | $17,910iApproximate average salary by contribution assumption: employee only about $447,749 at 4% or $298,499 at 6%; with 50% employer match about $298,499 at 4% or $199,000 at 6%; with 100% employer match about $223,875 at 4% or $149,250 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,998 | - | - | - |
| 2023 | 2 | 1,935 | $279,995,066 | $37,975,569 | $19,626iApproximate average salary by contribution assumption: employee only about $490,640 at 4% or $327,094 at 6%; with 50% employer match about $327,094 at 4% or $218,062 at 6%; with 100% employer match about $245,320 at 4% or $163,547 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,935 | $279,995,066 | $37,975,569 | $19,626iApproximate average salary by contribution assumption: employee only about $490,640 at 4% or $327,094 at 6%; with 50% employer match about $327,094 at 4% or $218,062 at 6%; with 100% employer match about $245,320 at 4% or $163,547 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,832 | - | - | - |
| 2022 | 2 | 1,826 | $235,582,868 | $33,014,109 | $18,080iApproximate average salary by contribution assumption: employee only about $452,000 at 4% or $301,334 at 6%; with 50% employer match about $301,334 at 4% or $200,889 at 6%; with 100% employer match about $226,000 at 4% or $150,667 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,826 | $235,582,868 | $33,014,109 | $18,080iApproximate average salary by contribution assumption: employee only about $452,000 at 4% or $301,334 at 6%; with 50% employer match about $301,334 at 4% or $200,889 at 6%; with 100% employer match about $226,000 at 4% or $150,667 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,712 | - | - | - |
| 2021 | 2 | 1,687 | $279,972,863 | $31,972,777 | $18,952iApproximate average salary by contribution assumption: employee only about $473,811 at 4% or $315,874 at 6%; with 50% employer match about $315,874 at 4% or $210,583 at 6%; with 100% employer match about $236,906 at 4% or $157,937 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,687 | $279,972,863 | $31,972,777 | $18,952iApproximate average salary by contribution assumption: employee only about $473,811 at 4% or $315,874 at 6%; with 50% employer match about $315,874 at 4% or $210,583 at 6%; with 100% employer match about $236,906 at 4% or $157,937 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,527 | - | - | - |
| 2020 | 2 | 1,691 | $235,941,403 | $25,119,847 | $14,855iApproximate average salary by contribution assumption: employee only about $371,376 at 4% or $247,584 at 6%; with 50% employer match about $247,584 at 4% or $165,056 at 6%; with 100% employer match about $185,688 at 4% or $123,792 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,691 | $235,941,403 | $25,119,847 | $14,855iApproximate average salary by contribution assumption: employee only about $371,376 at 4% or $247,584 at 6%; with 50% employer match about $247,584 at 4% or $165,056 at 6%; with 100% employer match about $185,688 at 4% or $123,792 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,406 | - | - | - |
| 2019 | 2 | 1,710 | $192,971,263 | $24,246,021 | $14,179iApproximate average salary by contribution assumption: employee only about $354,474 at 4% or $236,316 at 6%; with 50% employer match about $236,316 at 4% or $157,544 at 6%; with 100% employer match about $177,237 at 4% or $118,158 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,710 | $192,971,263 | $24,246,021 | $14,179iApproximate average salary by contribution assumption: employee only about $354,474 at 4% or $236,316 at 6%; with 50% employer match about $236,316 at 4% or $157,544 at 6%; with 100% employer match about $177,237 at 4% or $118,158 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,408 | - | - | - |
| 2018 | 2 | 1,714 | $146,540,803 | $22,361,551 | $13,046iApproximate average salary by contribution assumption: employee only about $326,160 at 4% or $217,440 at 6%; with 50% employer match about $217,440 at 4% or $144,960 at 6%; with 100% employer match about $163,080 at 4% or $108,720 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,714 | $146,540,803 | $22,361,551 | $13,046iApproximate average salary by contribution assumption: employee only about $326,160 at 4% or $217,440 at 6%; with 50% employer match about $217,440 at 4% or $144,960 at 6%; with 100% employer match about $163,080 at 4% or $108,720 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,457 | - | - | - |
| 2017 | 2 | 1,631 | $148,765,291 | $17,689,080 | $10,846iApproximate average salary by contribution assumption: employee only about $271,139 at 4% or $180,759 at 6%; with 50% employer match about $180,759 at 4% or $120,506 at 6%; with 100% employer match about $135,569 at 4% or $90,380 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,631 | $148,765,291 | $17,689,080 | $10,846iApproximate average salary by contribution assumption: employee only about $271,139 at 4% or $180,759 at 6%; with 50% employer match about $180,759 at 4% or $120,506 at 6%; with 100% employer match about $135,569 at 4% or $90,380 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,287 | - | - | - |
| 2016 | 2 | 1,322 | $118,537,619 | $13,994,975 | $10,586iApproximate average salary by contribution assumption: employee only about $264,655 at 4% or $176,437 at 6%; with 50% employer match about $176,437 at 4% or $117,625 at 6%; with 100% employer match about $132,328 at 4% or $88,218 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,322 | $118,537,619 | $13,994,975 | $10,586iApproximate average salary by contribution assumption: employee only about $264,655 at 4% or $176,437 at 6%; with 50% employer match about $176,437 at 4% or $117,625 at 6%; with 100% employer match about $132,328 at 4% or $88,218 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 1,296 | - | - | - |
| 2015 | 2 | 1,015 | $109,833,420 | $12,745,220 | $12,557iApproximate average salary by contribution assumption: employee only about $313,922 at 4% or $209,281 at 6%; with 50% employer match about $209,281 at 4% or $139,521 at 6%; with 100% employer match about $156,961 at 4% or $104,641 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 1,015 | $109,833,420 | $12,745,220 | $12,557iApproximate average salary by contribution assumption: employee only about $313,922 at 4% or $209,281 at 6%; with 50% employer match about $209,281 at 4% or $139,521 at 6%; with 100% employer match about $156,961 at 4% or $104,641 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 972 | - | - | - |
| 2014 | 2 | 897 | $109,130,345 | $11,010,321 | $12,275iApproximate average salary by contribution assumption: employee only about $306,865 at 4% or $204,577 at 6%; with 50% employer match about $204,577 at 4% or $136,385 at 6%; with 100% employer match about $153,433 at 4% or $102,288 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 897 | $109,130,345 | $11,010,321 | $12,275iApproximate average salary by contribution assumption: employee only about $306,865 at 4% or $204,577 at 6%; with 50% employer match about $204,577 at 4% or $136,385 at 6%; with 100% employer match about $153,433 at 4% or $102,288 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 894 | - | - | - |
| 2013 | 2 | 852 | $100,130,203 | $9,787,975 | $11,488iApproximate average salary by contribution assumption: employee only about $287,206 at 4% or $191,471 at 6%; with 50% employer match about $191,471 at 4% or $127,647 at 6%; with 100% employer match about $143,603 at 4% or $95,735 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 852 | $100,130,203 | $9,787,975 | $11,488iApproximate average salary by contribution assumption: employee only about $287,206 at 4% or $191,471 at 6%; with 50% employer match about $191,471 at 4% or $127,647 at 6%; with 100% employer match about $143,603 at 4% or $95,735 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 829 | - | - | - |
| 2012 | 2 | 820 | $79,390,789 | $7,779,185 | $9,487iApproximate average salary by contribution assumption: employee only about $237,170 at 4% or $158,114 at 6%; with 50% employer match about $158,114 at 4% or $105,409 at 6%; with 100% employer match about $118,585 at 4% or $79,057 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 820 | $79,390,789 | $7,779,185 | $9,487iApproximate average salary by contribution assumption: employee only about $237,170 at 4% or $158,114 at 6%; with 50% employer match about $158,114 at 4% or $105,409 at 6%; with 100% employer match about $118,585 at 4% or $79,057 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 772 | - | - | - |
| 2011 | 2 | 854 | $70,439,750 | $11,679,235 | $13,676iApproximate average salary by contribution assumption: employee only about $341,898 at 4% or $227,932 at 6%; with 50% employer match about $227,932 at 4% or $151,955 at 6%; with 100% employer match about $170,949 at 4% or $113,966 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401(K) RETIREMENT PLAN | - | 854 | $70,439,750 | $11,679,235 | $13,676iApproximate average salary by contribution assumption: employee only about $341,898 at 4% or $227,932 at 6%; with 50% employer match about $227,932 at 4% or $151,955 at 6%; with 100% employer match about $170,949 at 4% or $113,966 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 798 | - | - | - |
| 2010 | 2 | 619 | $45,651,460 | $4,018,479 | $6,492iApproximate average salary by contribution assumption: employee only about $162,297 at 4% or $108,198 at 6%; with 50% employer match about $108,198 at 4% or $72,132 at 6%; with 100% employer match about $81,149 at 4% or $54,099 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401(K) RETIREMENT PLAN | - | 619 | $45,651,460 | $4,018,479 | $6,492iApproximate average salary by contribution assumption: employee only about $162,297 at 4% or $108,198 at 6%; with 50% employer match about $108,198 at 4% or $72,132 at 6%; with 100% employer match about $81,149 at 4% or $54,099 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 515 | - | - | - |
| 2009 | 2 | 651 | $40,138,455 | $4,680,108 | $7,189iApproximate average salary by contribution assumption: employee only about $179,728 at 4% or $119,818 at 6%; with 50% employer match about $119,818 at 4% or $79,879 at 6%; with 100% employer match about $89,864 at 4% or $59,909 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401(K) RETIREMENT PLAN | - | 651 | $40,138,455 | $4,680,108 | $7,189iApproximate average salary by contribution assumption: employee only about $179,728 at 4% or $119,818 at 6%; with 50% employer match about $119,818 at 4% or $79,879 at 6%; with 100% employer match about $89,864 at 4% or $59,909 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 617 | - | - | - |
| 2008 | 2 | 775 | $32,081,375 | $8,820,171 | $11,381iApproximate average salary by contribution assumption: employee only about $284,522 at 4% or $189,681 at 6%; with 50% employer match about $189,681 at 4% or $126,454 at 6%; with 100% employer match about $142,261 at 4% or $94,841 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 775 | $32,081,375 | $8,820,171 | $11,381iApproximate average salary by contribution assumption: employee only about $284,522 at 4% or $189,681 at 6%; with 50% employer match about $189,681 at 4% or $126,454 at 6%; with 100% employer match about $142,261 at 4% or $94,841 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 770 | - | - | - |
| 2007 | 2 | 798 | $42,530,168 | $7,346,620 | $9,206iApproximate average salary by contribution assumption: employee only about $230,157 at 4% or $153,438 at 6%; with 50% employer match about $153,438 at 4% or $102,292 at 6%; with 100% employer match about $115,079 at 4% or $76,719 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 798 | $42,530,168 | $7,346,620 | $9,206iApproximate average salary by contribution assumption: employee only about $230,157 at 4% or $153,438 at 6%; with 50% employer match about $153,438 at 4% or $102,292 at 6%; with 100% employer match about $115,079 at 4% or $76,719 at 6%. |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 789 | - | - | - |
| 2006 | 3 | 646 | $34,898,233 | $6,882,878 | $10,655iApproximate average salary by contribution assumption: employee only about $266,365 at 4% or $177,577 at 6%; with 50% employer match about $177,577 at 4% or $118,385 at 6%; with 100% employer match about $133,183 at 4% or $88,788 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 602 | $34,898,233 | $6,882,878 | $11,433iApproximate average salary by contribution assumption: employee only about $285,834 at 4% or $190,556 at 6%; with 50% employer match about $190,556 at 4% or $127,037 at 6%; with 100% employer match about $142,917 at 4% or $95,278 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 0 | - | - | - |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 646 | - | - | - |
| 2005 | 3 | 658 | $28,013,736 | $5,363,201 | $8,151iApproximate average salary by contribution assumption: employee only about $203,769 at 4% or $135,846 at 6%; with 50% employer match about $135,846 at 4% or $90,564 at 6%; with 100% employer match about $101,885 at 4% or $67,923 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 570 | $28,002,317 | $5,363,201 | $9,409iApproximate average salary by contribution assumption: employee only about $235,228 at 4% or $156,819 at 6%; with 50% employer match about $156,819 at 4% or $104,546 at 6%; with 100% employer match about $117,614 at 4% or $78,409 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 2 | $11,419 | - | - |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 658 | - | - | - |
| 2004 | 3 | 591 | $22,846,968 | $4,741,786 | $8,023iApproximate average salary by contribution assumption: employee only about $200,583 at 4% or $133,722 at 6%; with 50% employer match about $133,722 at 4% or $89,148 at 6%; with 100% employer match about $100,292 at 4% or $66,861 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 591 | $22,834,817 | $4,741,786 | $8,023iApproximate average salary by contribution assumption: employee only about $200,583 at 4% or $133,722 at 6%; with 50% employer match about $133,722 at 4% or $89,148 at 6%; with 100% employer match about $100,292 at 4% or $66,861 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 2 | $12,151 | - | - |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 494 | - | - | - |
| 2003 | 3 | 527 | $17,415,478 | $4,071,883 | $7,727iApproximate average salary by contribution assumption: employee only about $193,163 at 4% or $128,776 at 6%; with 50% employer match about $128,776 at 4% or $85,850 at 6%; with 100% employer match about $96,582 at 4% or $64,388 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 503 | $17,403,076 | $4,071,883 | $8,095iApproximate average salary by contribution assumption: employee only about $202,380 at 4% or $134,920 at 6%; with 50% employer match about $134,920 at 4% or $89,947 at 6%; with 100% employer match about $101,190 at 4% or $67,460 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 0 | $12,402 | - | - |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 527 | - | - | - |
| 2002 | 3 | 469 | $10,718,000 | $3,363,530 | $7,172iApproximate average salary by contribution assumption: employee only about $179,293 at 4% or $119,528 at 6%; with 50% employer match about $119,528 at 4% or $79,686 at 6%; with 100% employer match about $89,646 at 4% or $59,764 at 6%. |
| SUFFOLK CONSTRUCTION COMPANY, INC. 401K RETIREMENT PLAN | - | 405 | $10,705,257 | $3,363,530 | $8,305iApproximate average salary by contribution assumption: employee only about $207,625 at 4% or $138,417 at 6%; with 50% employer match about $138,417 at 4% or $92,278 at 6%; with 100% employer match about $103,813 at 4% or $69,208 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 4 | $12,743 | - | - |
| Suffolk Construction Company Inc. Welfare Benefit Plan | - | 469 | - | - | - |
| 2000 | 2 | 317 | $9,314,798 | $2,851,423 | $8,995iApproximate average salary by contribution assumption: employee only about $224,876 at 4% or $149,917 at 6%; with 50% employer match about $149,917 at 4% or $99,945 at 6%; with 100% employer match about $112,438 at 4% or $74,959 at 6%. |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 317 | $9,297,946 | $2,851,423 | $8,995iApproximate average salary by contribution assumption: employee only about $224,876 at 4% or $149,917 at 6%; with 50% employer match about $149,917 at 4% or $99,945 at 6%; with 100% employer match about $112,438 at 4% or $74,959 at 6%. |
| Suffolk Construction Co. Money Purchase Plan | - | 5 | $16,852 | - | - |
| 1999 | 1 | 378 | $0 | $0 | - |
| Suffolk Construction Company Inc. 401K Retirement Plan | - | 378 | - | - | - |